PROEL M1622USB User manual

M1622USB
16-CH 4-BUS MIXER
WITH FX AND USB
USER MANUAL
MANUALE D'USO

FCC COMPLIANCE NOTICE
This device complies with part 15 of the FCC rules. Operaon is subject to the following two condions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operaon.
CAUTION: Changes or modificaons not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protecon against harmful interference in
a residenal installaon. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instrucon manual, may cause harmful interference to radio communicaons.
However, there is no guarantee that interference will not occur in a parcular installaon. If this equipment does
cause harmful interference to radio or television recepon, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separaon between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end of
its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this
from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household users should
contact either the retailer where they purchased this product, or their local government office, for details of where and how they can
take this item for environmentally safe recycling. Business users should contact their supplier and check the terms and condions of the
purchase contract. This product should not be mixed with other commercial wastes for disposal.
The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure, that may be of sufficient magnitude to constute a risk of electric shock to persons.
The exclamaon point within an equilateral triangle is intended to alert the user to the presence of important operang and maintenance
(servicing) instrucons in the literature accompanying the appliance.
The informaon contained in this publicaon has been carefully prepared and checked. However no responsibility will be taken for any errors. All
rights are reserved and this document cannot be copied, photocopied or reproduced in part or completely without wrien consent being obtained
in advance from PROEL. PROEL reserves the right to make any aesthec, funconal or design modificaon to any of its products without any prior
noce. PROEL assumes no responsibility for the use or applicaon of the products or circuits described herein.
Il marchio riportato sul prodoo o sulla documentazione indica che il prodoo non deve essere smalto con altri rifiudomesci al
termine del ciclo di vita. Per evitare eventuali danni all’ambiente si invita l’utente a separare questo prodoo da altri pi di rifiue di
riciclarlo in maniera responsabile per favorire il riulizzo sostenibile delle risorse materiali. Gli utendomesci sono invitaa contaare
il rivenditore presso il quale è stato acquistato il prodoo o l’ufficio locale preposto per tue le informazioni relave alla raccolta
differenziata e al riciclaggio per questo po di prodoo. Gli uten
aziendali sono invitaa contaare il proprio fornitore e verificare i
termini e le condizioni del contrao di acquisto. Questo prodoo non deve essere smalto unitamente ad altri rifiucommerciali.
Il simbolo del lampo con freccia in un triangolo equilatero intende avverre l'ulizzatore per la presenza di "tensioni pericolose" non isolate
all'interno dell'involucro del prodoo, che possono avere una intensità sufficiente a costuire rischio di scossa elerica alle persone.
Il punto esclamavo in un triangolo equilatero intende avverre l'ulizzatore per la presenza di importanistruzioni per l'ulizzo e la
manutenzione nella documentazione che accompagna il prodoo.
Le informazioni contenute in questo documento sono state aentamente redae e controllate. Tuavia non è assunta alcuna responsabilità per
eventuali inesaezze. Tui dirisono riservae questo documento non può essere copiato, fotocopiato, riprodoo per intero o in parte senza
previo consenso scrio della PROEL. PROEL si riserva il dirio di apportare senza preavviso cambiamene modifiche esteche, funzionali o di
design a ciascun proprio prodoo. PROEL non assume alcuna responsabilità sull’uso o sul l’applicazione dei prodoo dei circuiqui descri.

3
INDEX
FCC COMPLIANCE NOTICE . . . . . . . . . . . . . . . . . . . 2
TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . 4
MECHANICAL DIMENSIONS . . . . . . . . . . . . . . . . . . 5
LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CONTROL PANEL (FIG.1) . . . . . . . . . . . . . . . . . . . . . 7
CONTROL PANEL (FIG.2) . . . . . . . . . . . . . . . . . . . . . 8
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CONFIGURATION EXAMPLE . . . . . . . . . . . . . . . . . . 9
ENGLISH LANGUAGE. . . . . . . . . . . . . . . . . . . . . . . 10
SAFETY AND PRECAUTIONS . . . . . . . . . . . . . . . . . 10
IN CASE OF FAULT . . . . . . . . . . . . . . . . . . . . . . . . . 10
CE CONFORMITY. . . . . . . . . . . . . . . . . . . . . . . . . . 10
PACKAGING, SHIPPING AND COMPLAINT . . . . . . 10
WARRANTY AND PRODUCTS RETURN . . . . . . . . . 10
INSTALLATION AND DISCLAIMER . . . . . . . . . . . . . 10
POWER SUPPLY AND MAINTENANCE . . . . . . . . . 10
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . 11
OPERATING INSTRUCTIONS (FIG. 1 / 2). . . . . . . . 11
INDICE
SPECIFICHE TECNICHE . . . . . . . . . . . . . . . . . . . . . . 4
DIMENSIONI MECCANICHE . . . . . . . . . . . . . . . . . . 5
LAY-OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PANNELLO DI CONTROLLO (FIG.1) . . . . . . . . . . . . . 7
PANNELLO DI CONTROLLO (FIG.2) . . . . . . . . . . . . . 8
CONNESSIONI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ESEMPIO CONFIGURAZIONE . . . . . . . . . . . . . . . . . 9
LINGUA ITALIANA . . . . . . . . . . . . . . . . . . . . . . . . . 19
AVVERTENZE PER LA SICUREZZA . . . . . . . . . . . . . 19
IN CASO DI GUASTO . . . . . . . . . . . . . . . . . . . . . . . 19
CONFORMITÀ CE. . . . . . . . . . . . . . . . . . . . . . . . . . 19
IMBALLAGGIO, TRASPORTO E RECLAMI . . . . . . . 19
GARANZIE E RESI . . . . . . . . . . . . . . . . . . . . . . . . . 19
INSTALLAZIONE E LIMITAZIONI D’USO. . . . . . . . . 19
ALIMENTAZIONE E MANUTENZIONE . . . . . . . . . . 19
INFORMAZIONI GENERALI . . . . . . . . . . . . . . . . . . 20
ISTRUZIONI OPERATIVE (FIG. 1 / 2) . . . . . . . . . . . 20

4
MODEL M1622USB Connectors MODELLO M1622USB Conneori
MONO INPUT CHANNELS CANALI INGRESSO MONO
Mic Input Sensivity from 0 to -60 dBu Balanced XLR-F Sensibilità Ingresso Mic da 0 a -60 dBu XLR-F Bilanciato
Mic Input Impedance 2 Kohm Impedenza Ingresso Mic 2 Kohm
Line Input Sensivity from +20 to -40 dBu Balanced Jack Sensibilità Ingresso Line da +20 a -40 dBu Jack Bilanciato
Line Input Impedance 10 Kohm Impedenza Ingresso Line 10 Kohm
LO CUT 75Hz, 18dB/oct. FILTRO LO-CUT 75Hz, 18dB/oct.
EQ HIGH (shelving) ±15 dB @ 12KHz EQ ALTI (shelving) ±15 dB @ 12KHz
EQ MID (peaking) ±15 dB @ 2.5KHz from 100 Hz to 8 KHz EQ MEDI (peaking) ±15 dB @ 2.5KHz da 100 Hz a 8 KHz
EQ LOW (shelving) ±15 dB @ 80Hz EQ BASSI (shelving) ±15 dB @ 80Hz
STEREO INPUT CHANNELS CANALI INGRESSO STEREO
Mic Input Sensivity from 0 to -40 dBu Balanced XLR-F Sensibilità Ingresso Mic da 0 a -40 dBu XLR-F Bilanciato
Mic Input Impedance 2 Kohm Impedenza Ingresso Mic 2 Kohm
Line Input Sensivity from +20 to -20 dBu Balanced Jack Sensibilità Ingresso Line da +20 a -20 dBu Jack Bilanciato
Line Input Impedance 10 Kohm Impedenza Ingresso Line 10 Kohm
EQ HIGH (shelving) ±15 dB @ 12 KHz EQ ALTI (shelving) ±15 dB @ 12KHz
EQ HI-MID (peaking) ±15 dB @ 3 KHz EQ MEDIO-ALTI (peaking) ±15 dB @ 3 KHz
EQ LO-MID (peaking) ±15 dB @ 500 Hz EQ MEDIO-BASSI (peaking) ±15 dB @ 500 Hz
EQ LOW (shelving) ±15 dB @ 80Hz EQ BASSI (shelving) ±15 dB @ 80Hz
MASTER SECTION SEZIONE MASTER
MAIN MIX nom. out level +4 dBu Balanced Jack / XLR-M Livello nom. MAIN MIX +4 dBu Jack Bilanciato / XLR-M
MAIN MIX INSERT 0 dBu TRS Jack INSERT MAIN MIX 0 dBu TRS Jack
MIX/AUX Assignable EQ graphic 7 band MIX/AUX EQ Assegnabile graphic 7 band
GROUP nom. out level +4 dBu Balanced Jack Livello nom. GROUP +4 dBu Jack Bilanciato
C.ROOM nom. out level 0 dBu Unbalanced Jack Livello nom. C.ROOM 0 dBu Jack Sbilanciato
AUX nom. out level 0 dBu Unbalanced Jack Livello nom. AUX 0 dBu Jack Sbilanciato
2 - TRK nom. out level 0 dBu Unbalanced Rca Livello nom. 2 - TRK OUT 0 dBu Rca Sbilanciato
2 - TRK nom. in level 0 dBu Unbalanced Rca Livello nom. 2 - TRK IN 0 dBu Rca Sbilanciato
PHONES min. impedance 32 ohm Stereo Jack Impedenza min. PHONES 32 ohm Jack Stereo
PHONES max. out level (2x) 193 mW Livello max. PHONES (2x) 193 mW
USB IN/OUT, 16bit / 48KHz Type B USB IN/OUT, 16bit / 48KHz Tipo B
DIGITAL EFFECT PROCESSOR - PROFEX DIGITAL EFFECT PROCESSOR - PROFEX
Presets 256 (16 presets x 16 variaons) Presets 256 (16 preset x 16 variazioni)
A/D and D/A converters 24 bit A/D and D/A converters 24 bit
DSP resoluon 24 bit DSP resoluon 24 bit
Controls 2-digit display, PRESET dial, PEAK LED, TAP DELAY
and MUTE with switch, footswitch and LED
Controlli 2 display LED, seleore PRESET, PEAK LED, TAP
DELAY e MUTE con tasto, pedale e LED
GENERAL SPECIFICATIONS SPECIFICHE GENERALI
Max level all outputs +22 dBu Livello Massimo Uscite +22 dBu
Crosstalk meas. at 1 KHz > 82 dBu Diafonia mis. a 1 KHz > 82 dBu
HUM & N unweighted < -93 dBu HUM & N non pesato < -93 dBu
THD+N at +4dB, 1kHz < 0,008 % THD+N a +4dB, 1kHz < 0,008 %
Dimensions (W x H x D) 465 x 91 x 462 mm Dimensioni (L x A x P) 465 x 91 x 462 mm
Weight 6.50 kg Peso 6,50 kg
POWER REQUIREMENTS ALIMENTAZIONE
Mains Supply Voltage: 110-240 VAC (±10%) 50 / 60 Hz
available with Europe mains cord (Shucko plug),
US mains cord (NEMA 5-15P plug),
UK mains cord (BS1363 plug)
Tensione di Rete: 110-240 VAC (±10%) 50 / 60 Hz
disponibile con cavo rete Europa (spina Shucko),
cavo rete StaUni(spina NEMA 5-15P),
cavo rete Regno Unito (spina BS1363)
Consumpon 75 W Assorbimento 75 W
TECHNICAL SPECIFICATIONS SPECIFICHE TECNICHE

5
MECHANICAL DIMENSIONS DIMENSIONI MECCANICHE
46.2 cm
18.2"
46.5 cm
18.3"
43.7 cm
17.2"
39.7 cm
15.6"
(9U RACK)
9.1 cm
3.60"

6
LAYOUT LAY-OUT

7
CONTROL PANEL (FIG.1) PANNELLO DI CONTROLLO (FIG.1)
2
1
3
4
5
18
19
20
17
16
9
10
12
8
11
14
13
15
7
6
22
21
18
19
17
12
11
14
13
15
27
7
10
23
25
24
28
20
22
21
26
29
54 55 56
32
31
30
40
41
33
42
36
34
38
46
47
48
49
50
79
80
68 69 70
71
61 62 64
65
63 57 58 59
59
60
81
66
73
82
83
74
44
43
51
75
76
52
37
45
53
77
72
78

8
CONTROL PANEL (FIG.2) PANNELLO DI CONTROLLO (FIG.2)
CONNECTIONS CONNESSIONI
SEND
RETURN
INSERT
Jack stereo
INSERT
Stereo Jack
LINE IN, OUT vari
Jack (bilanciato)
LINE IN, various OUT
Jack (balanced)
(2x) Jack mono (2x) Mono Jack
PHONES
Jack stereo
PHONES
Stereo Jack
MAIN MIX OUT
XLR bilanciato femmina
MAIN MIX OUT
Balanced female XLR
Ɵp - send
ring - return
sleeve - ground
Ɵp - send
Ɵp - return
sleeve - ground
ground
hot
cold
sleeve - ground
Ɵp - hot
ring - cold
MIC INPUT
XLR bilanciato maschio
MIC INPUT
Balanced male XLR
ground
hot
cold
Ɵp - leŌ
ring - right
sleeve - ground
2TRK IN, OUT
Jack (sbilanciato)
2TRK IN, OUT
Jack (unbalanced)
ground
hot
cold
*nota: conneƩere insieme cold e ground
per cavi da bilanciato a sbilanciato
*note: connect both cold and ground to
make cable from balanced to unbalanced
LINE IN, OUT vari
Jack (sbilanciato)
LINE IN, various OUT
Jack (unbalanced)
ground
Ɵp - hot
cold
*nota: conneƩere insieme cold e ground
per cavi da bilanciato a sbilanciato
*note: connect both cold and ground
to make cable from balanced to unbalanced
8485 35
39
86 67 87

9
CONFIGURATION EXAMPLE ESEMPIO CONFIGURAZIONE
VOCAL MIC
CHOIR MICS
SAX MIC
DRUM KIT
ACOUSTIC
GUITAR
DIBOX
HEADPHONES
FLASH5A desktop monitors
or other AUDIO SYSTEM
WD12A wedge monitor
or other stage monitors
external sound processor
CD / MP3 / DVD RECORDER
AND PLAYER WITH AUDIO IN/OUT
DUAL 31 BAND EQUALIZER
PERSONAL COMPUTER
WITH USB 2.0 PORT
normally
open
temporary
pedals
(proel: GF29)
KEYBOARD
FLASH12HDA
acƟve processed speaker
or other AUDIO SYSTEM
ELECTRIC GUITAR
ELECTRIC BASS

10
ENGLISH LANGUAGE
SAFETY AND PRECAUTIONS
• CAUTION: before using this product read carefully the following safety instrucons. Take a look of this manual enrely and preserve it for
future reference.
When using any electric product, basic precauons should always be taken, including the following:
– To reduce the risk, close supervision is necessary when the product is used near children.
– Protect the apparatus from atmospheric agents and keep it away from water, rain and high humidity places.
– This product should be site away from heat sources such as radiators, lamps and any other device that generate heat.
– Care should be taken so that objects and liquids do not go inside the product.
– The product should be connected to a power supply mains line only of the type described on the operang instrucons or as marked on the
product. Connect the apparatus to a power supply using only power cord included making always sure it is in good condions.
– WARNING: The mains plug is used as disconnect device, the disconnect device shall remain readily operable.
– Power supply cord should be unplugged from the outlet during strong thunderstorm or when leunused for a long period of me.
– Do not place objects on the product’s power cord or place it in a posion where anyone could trip over, walk on or roll anything over it. Do not
allow the product to rest on or to be installed over power cords of any type. Improper installaons of this type create the possibility of fire hazard
and/or personal injury.
IN CASE OF FAULT
• In case of fault or maintenance this product should be inspected only by qualified service personnel when:
– There is a flaw either in the connecons or in the supplied connecng cables.
– Liquids have spilled inside the product.
– The product has fallen and been damaged.
– The product does not appear to operate normally or exhibits a marked change in performance.
– The product has been lost liquids or gases or the enclosure is damaged.
• Do not operate on the product, it has no user-serviceable parts inside, refer servicing to an authorized maintenance centre.
CE CONFORMITY
• Proel products comply with direcve 2004/108/EC (EMC), as stated in EN 55013 standard and with direcve 2006/95/CE (LVD), as stated in EN
60065 standard.
• Under the EM disturbance, the rao of signal-noise will be changed above 10dB.
PACKAGING, SHIPPING AND COMPLAINT
• This unit package has been submied to ISTA 1A integrity tests. We suggest you control the unit condions immediately aer unpacking it.
• If any damage is found, immediately advise the dealer. Keep all unit packaging parts to allow inspecon.
• Proel is not responsible for any damage that occurs during shipment.
• Products are sold “delivered ex warehouse” and shipment is at charge and risk of the buyer.
• Possible damages to unit should be immediately nofied to forwarder. Each complaint for package tampered with should be done within eight
days from product receipt.
WARRANTY AND PRODUCTS RETURN
• Proel products have operang warranty and comply their specificaons, as stated by manufacturer.
• Proel warrants all materials, workmanship and proper operaon of this product for a period of two years from the original date of purchase. If
any defects are found in the materials or workmanship or if the product fails to funcon properly during the applicable warranty period, the owner
should inform about these defects the dealer or the distributor, providing receipt or invoice of date of purchase and defect detailed descripon.
This warranty does not extend to damage resulng from improper installaon, misuse, neglect or abuse. Proel S.p.A. will verify damage on returned
units, and when the unit has been properly used and warranty is sll valid, then the unit will be replaced or repaired. Proel S.p.A. is not responsible
for any "direct damage" or "indirect damage" caused by product defecveness.
INSTALLATION AND DISCLAIMER
• Proel products have been expressly designed for audio applicaon, with signals in audio range (20Hz to 20kHz). Proel has no liability for damages
caused in case of lack of maintenance, modificaons, improper use or improper installaon non-applying safety instrucons.
• Proel S.p.A. reserves the right to change these specificaons at any me without noce.
• Proel S.p.A. declines any liability for damages to objects or persons caused by lacks of maintenance, improper use, installaon not performed
with safety precauons and at the state of the art.
POWER SUPPLY AND MAINTENANCE
• Clean only with dry cloth.
• Before connecng the product to the mains outlet make certain that the mains line voltage matches that shown on the rear of the product, a
tolerance of up to ±10% is acceptable.
• CHECK THE CONDITION OF THE PROTECTION FUSE, ACCESSIBLE OUTWARD, ONLY WITH THE APPARATUS SWITCHED OFF AND
DISCONNECTED FROM THE MAINS LINE OUTLET.
• REPLACE THE PROTECTION FUSE ONLY WITH SAME TYPE AS SHOWN ON THE PRODUCT.
• IF AFTER THE SUBSTITUTION, THE FUSE INTERRUPTS AGAIN THE APPARATUS WORKING, DO NOT TRY AGAIN THEN CONTACT
THE PROEL SERVICE CENTER.

11
GENERAL INFORMATION
Thank you for having chosen a PROEL product.
The new models in the M Series have been updated with new and improved features, repacked into a new stylish
package. While keeping the superior audio quality, the full set of features and the highest number of MIC inputs in the
category that have been the hallmarks of the previous M Series, the M models feature the new PROEL 24bit PROFEX
DSP, one of the finest digital effect of its class, providing 256 studio-grade algorithms (including mono and stereo TAP
DELAY) and a convenient 2 digit LED display.
Designed and engineered in Italy by PROEL, M mixers are hosted in an ultra-rugged stylish metal case with ABS sides,
providing extended durability for a stage-proof use. As in the previous series, all the models include both a padded
carrying bag and metal brackets for 19” rack mounng.
M1622USB, offering 16 inputs and 12 microphone channels, has been fied not only with one more AUX send and
with the USB roung, but also with an easy-to-use COMPRESSOR secon on each MONO channel.
OPERATING INSTRUCTIONS (FIG. 1 / 2)
1. MIC Input
This is a female XLR connector, which accepts a balanced microphone input from almost any type of microphone. The
XLR inputs are wire as follows:
Pin 1 = shield or ground
Pin 2 = + posive or “hot”
Pin 3 = - negave or “cold”
2. LINE Input
This is a ¼” (6.3mm) jack connector, which accepts a balanced or unbalanced line level input signal from almost any
source. When connecng a balanced signal, wire them as follows:
Tip = + posive or “hot”
Ring = - negave or “cold”
Sleeve = shield or ground
When connecng an unbalanced signal, wire them as follows:
Tip = + posive or “hot”
Sleeve = shield or ground
3. INSERT Input-output
This is where you connect serial effects such as compressors, equalizers, de-essers or filters. The send is low-impedance
(150 ohms), capable of driving any line-level device. The return is high-impedance (10k ohms) and can be driven by
almost any device. Specialty “Y” cables, developed just for these jacks, are widely available on shops. Proel suggested
type is DHT540 (1.8 mt - 5.9 ). See also connecon chapter on this manual.
4. MONO CHANNEL GAIN Control
The gain control adjusts the input sensivity of the mic and line inputs. This allows the signal from mics and instruments
to be adjusted to opmal internal levels. If the signals are plugged into the XLR input there is a 0 dB of gain with the
knob turned all way down, rising up to 60 dB of gain fully up. When connected to the jack input of any channels, there
is 20 dB of aenuaon all way down and 40 dB of gain fully up, with a unity gain (0 dB) if centered.
5. LO CUT switch
This switch cuts bass frequencies below 75 Hz at a rate of 18 dB per octave. We recommend that you use the LO CUT
filter on every microphone applicaon except kick drum, bass guitar, bassy synth patches, or recordings. These aside,
there isn’t much down there that you want to hear, and filtering it out makes the low stuffyou do want much more
crisp and tasty. Not only that, but the LO CUT filter can help reduce the possibility of feedback in live situaons and
it helps to conserve the amplifier power. Another way to use the LO CUT filter is in combinaon with the LOW EQ on
vocals during live performances. Many mes, bass shelving EQ can really benefit voices. Trouble is, adding LOW EQ also
boosts stage rumble, mic handling clunks, and breath pops. LO CUT removes all those problems so you can add LOW
EQ without losing a woofer.
6. COMP compressor control and LED
Each mono channel features a single-control compressor, able to adjust the overall dynamic range of the signal and to
increase its loudness. When rotang the control to the right, the loudest signals are reduced in order to avoid clipping,
while the quietest parts are boosted, producing a smooth, unified sound with no excessive peaks or distoron.
The adjacent LED lights when the effect is engaged.
NOTE: Avoid seng the compression too high, as the higher average output level that results may lead to feedback.

12
7. EQ secon HIGH control
This control gives you up to 15dB boost or cut at 12KHz with a “SHELVING” curve shape. Use it to increase or reduce
the sound “clarity” or “brightness”.
8. EQ secon MID control
This control gives you up to 15 dB boost or cut at the frequency determined by the FREQ knob (see FREQ next) with a
"PEAKING" curve shape. Use it to add or reduce the sound "presence".
9. EQ secon FREQ control
This knob ranges from 100 Hz to 8 kHz and determines the center frequency for the MID EQ. This allows you to zero in
on the precise narrow band of frequencies you want to have affected by the MID EQ.
10. EQ secon LOW control
This control gives you up to 15dB boost or cut at 80Hz with a “SHELVING” curve shape. Use it to increase or reduce the
sound “punch”.
11. AUX 1 control (pre)
This control sends the channel signal to the AUX 1 output. This signal is always pre-fader, i.e. it is independent by the
posion of the FADER LEVEL control.
12. AUX 2 control (pre)
This control sends the channel signal to the AUX 2 output. This signal is always pre-fader, i.e. it is independent by the
posion of the FADER LEVEL control.
13. AUX 3 control (pre/post)
This control sends the signal to the AUX 3 output. This signal is normally pre-fader, but it could be set post-fader pressing
the POST switch: in this case the signal level depends on the posion of the channel FADER.
14. POST switch
Push this switch to set the AUX 3 control post-fader or release it to set the AUX 3 pre-fader. The pre-fader seng is
preferable if you want to use the AUX 3 send as stage monitor, in order to have your stage mix independent from MAIN
MIX.
15. AUX 4 FX control (send to FX post)
This control sends the signal to the AUX 4 output and to the internal DIGITAL EFFECT PROCESSOR. This signal is post-
fader, in other words it depends on the posion of the channel FADER.
16. PAN control
It adjusts the amount of channel signal sent to the leversus the right outputs. Use it to posion the sound origin in a
panoramic stereo scene.
17. MUTE switch
When you engage a channel’s mute switch, its signal disappears from these outputs: MAIN MIX, GROUPS 1-2, AUX 1,
AUX 2, AUX 3, AUX4/FX.
NOTE: the input channel signal is not completely muted by this switch, so you can listen to it thru headphones and
C.ROOM outputs acng on the SOLO buon in PFL mode only (see SOLO MODE).
18. MIX switch
Engaging this switch you assign the channel signal to the MAIN MIX bus regulated by the MAIN MIX faders. Typically,
the MIX switch will be engaged on all channels except those assigned separately to GROUPS 1-2.
19. 1-2 switch
Engaging this switch you assign the channel signal to the GROUPS 1-2 bus regulated by the GROUPS 1-2 faders. You
can use the GROUPS 1-2 jacks as separate outputs or, engaging the switch GRP TO MIX, to create a submix for a set of
channels (all the drums channels, for instance): in this case you can control the assigned GROUPS 1-2 signals together
and independently from the rest of the mix.
20. PEAK detector and SOLO acve
This LED has two funcons:
If the PEAK LED lights permanently this means that you have acvated the SOLO switch of this channel.
If the PEAK LED flashes this means that the input signal is near to the CLIPPING point.
IMPORTANT: if the LED PEAK flashes reduce the level of the input signal using the GAIN control.
21. SOLO switch
This switch allows you to hear signals through your headphones or control room outputs and to display the level on LED
meters. Use the SOLO in live sets to pre-listen channels before they are fed into the mix or just to check out a parcular
channel anyme during a session. You can solo as many channels at a me as you like.
IMPORTANT: The solo signal is pre-fader if SOLO MODE is in PFL posion, so what you check is the signal entering the

13
channel. The solo signal is post-fader if SOLO MODE is in AFL posion, so what you check is the signal sent from the
channel fader to the MAIN MIX.
22. FADER LEVEL control
It adjusts the level of the channel signal and sends it to the MAIN MIX and/or to the GROUPS 1-2 buses.
23. MIC MONO Input
This is a female XLR connector, which accepts a balanced microphone input from almost any type of microphone. Wiring
is the same of previous paragraphs.
24. LINE L MONO Input
This is a ¼” (6.3mm) jack connector, which accepts a balanced or unbalanced line level input signal from almost any line
source. If the LINE R jack is not inserted, this channel operates like a MONO channel with this input as a single signal
source. Wiring is the same of previous paragraphs.
25. LINE R Input
This is a ¼” (6.3mm) jack connector, which accepts a balanced or unbalanced line level input signal from almost any line
source. This is used only in presence of LINE L jack input to use the channel as STEREO.
26. STEREO CHANNEL GAIN Control
The gain control adjusts the input sensivity of the mic and line inputs. This allows the signal from mics and instruments
to be adjusted to opmal internal levels. If the signals are plugged into the XLR input there is a 0 dB of gain with the
knob turned all way down, rising up to 40 dB of gain fully up. When connected to the jack input of any channels, there
is 20 dB of aenuaon all way down and 20 dB of gain fully up, with a unity gain (0 dB) if centered.
27. EQ secon HI MID control
This control gives you up to 15 dB boost or cut at 3 KHz with a "PEAKING" curve shape. Use it to add or reduce the
sound "clarity".
28. EQ secon LO MID control
This control gives you up to 15 dB boost or cut at 500 Hz with a "PEAKING" curve shape. Use it to add or reduce the
sound "presence".
29. BAL control
It adjusts the amount of channel signal sent to the leversus the right outputs if the channel is used as MONO, or it
fades the LEFT or RIGHT signal amount if the channel is used as STEREO.
30. PRESETS selector and display
The internal PROFEX digital effect processor is built around a powerful DSP and 24bit AD/DA converters. It includes 16
different presets of studio-grade effect algorithm, each one featuring 16 different variaons of the internal parameters,
for a total of 256 effects available.
HOW TO USE THE PROFEX EFFECT:
- rotate the SELECTOR knob to choose the type of effect (preset) you want to use;
- to select a variaon of the preset, press and hold the knob unl the display flashes;
- rotate the knob and choose one of the 16 variaons available;
- press and hold again the knob unl the display stops flashing to confirm the selecon and to return back to the
preset selecon;
- send the signal to the effect with the AUX control (10) of the channel you want to add the effect to;
- rotate the FX LEVEL (25) knob unl you hear the effect added to the original signal;
- adjust the AUX controls (10) just before the signal input clipping indicated by the peak led (22);
- re-adjust the FX LEVEL (25) knob to combine the wet effected signal with the natural dry signal.
NOTE: the preset and the variaon selected in the PROFEX effect are kept in the memory even if you turn offthe
mixer.
PRESET DESCRIPTION:
p 1. BRIGHT HALL - This type of reverb simulates the ambience of a grand concert hall. Dense, smooth reverb with
long pre delay and a lot of high frequency reflecons. Works well with vocals, electric and acousc guitars, strings.
The VARIATIONS vary the decay me and the hall size from bigger [1] to smallest [16].
p 2. DARK HALL - This type of reverb simulates the ambience of a grand concert hall. Dense, smooth reverb with long
pre delay and a few of high frequency reflecons. Works well with vocals, guitars, woodwinds.
The VARIATIONS vary the decay me and the hall size from bigger [1] to smallest [16].
p 3. BRIGHT ROOM - This type of reverb reproduces the more inmate ambience of natural room acouscs. Feature
a lot of early reflecons with a lot of high frequency. Works well with vocals, woodwinds, strings, drums.
The VARIATIONS vary the decay me and the room size from bigger [1] to smallest [16].

14
p 4. DARK ROOM - This type of reverb reproduces the more inmate ambience of natural room acouscs. Feature a
lot lot of early reflecons with a few of high frequency. Works well with vocals, fingered guitars, drums.
The VARIATIONS vary the decay me and the room size from bigger [1] to smallest [16].
p 5. VOCAL 1 (STAGE REVERB) - Amazing reverb designed for vocals with a long tail.
The VARIATIONS vary the decay me from long tail [1] to short tail [16], alternang plate, spring or hall types of
reverb.
p 6. VOCAL 2 (CLUB REVERB) - Amazing reverb designed for vocals with a dense tail.
The VARIATIONS vary the decay me from long tail [1] to short tail [16], alternang tape, hall or spring types of
reverb.
p 7. PLATE - This is a simulaon of metal plate reverb, as used on classic recordings from the ‘70s and ‘80s.
The VARIATIONS vary the decay me from long tail [1] to short tail [16].
p 8. STEREO DELAY - Echo effect with ping-pong of leand right channels.
The VARIATIONS vary from long delay mes [1] to short delay mes [16].
p 9. STEREO TAP DELAY - Like STEREO DELAY above with me set by the user TAP buon (22) just below.
The VARIATIONS vary from 5% [1] to 90% [16] of feedback quanty.
p 10. MONO TAP DELAY - Typical mono delay with me set by the user TAP buon (22) just below.
The VARIATIONS vary from 0% [1] to 75% [16] of feedback quanty.
p 11. CHORUS - Typical modulaon effect, provides a so, ethereal sweeping effect. Perfect for enhancement of
electric and acousc guitar and bass. Also adds a dramac effect to vocals, parcularly group harmonies and choirs.
The VARIATIONS increase the modulaon frequency from 0.5Hz [1] to 5Hz [16].
p 12. FLANGER - Typical modulaon effect, creates a strong sweeping effect, parcularly effec
ve on rock electric
guitar, lead and rhythm.
The VARIATIONS increases the modulaon frequency from 0.2Hz [1] to 3Hz [16].
p 13. REVERB+DELAY 1 - Typical vocal hall reverb and stereo delay combined together.
The VARIATIONS vary from long tail [1] to short tail [16].
p 14. REVERB+DELAY 2 - Typical vocal hall reverb and mono delay combined together.
The VARIATIONS vary from long tail [1] to short tail [16].
p 15. REVERB+TAP DELAY - Typical vocal hall reverb and mono TAP delay combined together.
The mono delay me is set by the user TAP buon (22) just below.
The VARIATIONS vary from long tail [1] to short tail [16] and from 0% to 75% of feedback quanty [1-16].
p 16. REV+CHORUS - Typical vocal reverb and chorus effect combined together.
The VARIATIONS vary from long tail [1] to short tail [16] and increases the modulaon frequency from 0.5Hz to 5Hz
[1-16].
31. FX TO AUX1 level control
It adjusts the level of the internal effect signal sent to the AUX 1 output.
32. FX TO AUX2 level control
It adjusts the level of the internal effect signal sent to the AUX 2 output.
33. FX TO AUX3 level control
It adjusts the level of the internal effect signal sent to the AUX 3 output.
34. TAP buon and LED
When “TAP DELAY” effects (p 9, 10, 15) are selected, by pushing at least two mes this buon it’s possible to set the
desired delay me, according to music rhythm. The TAP LED flashes in sync with the delay me set.
35. FX TAP jack input
¼” (6.3mm) unbalanced (TS) jack for temporary, normally open footswitch (not supplied - suggested footswitch is the
PROEL model GF29). When “TAP DELAY” effects (p 9, 10, 15) are selected, by pressing at least two mes the footswitch
it’s possible to set the desired delay me, according to music rhythm.
36. PEAK detector
If the peak LED flashes this means that the signal is too high, near to the clipping of the effect input stage. In this case,
reduce the level of the AUX4 / FX channel sends (15) or AUX SEND 4 FX master send (37).
37. AUX SEND 4 FX LEVEL control
It adjusts the master level of AUX4 jack output and also the signal sent to internal effect. Use it to reduce the level of
signal sent to the internal effect if the PEAK LED is flashing. This control ranges from offthrough unity (the center detent
posion) on up to 15 dB of extra gain (fully clockwise).
38. MUTE buon
Engage this switch if you want to mute the signal from the internal effect.
NOTE: the effect can be turned on/offalso by means of a footswitch connected to the FX MUTE jack socket.

15
39. FX MUTE jack input
You can connect a footswitch to MUTE the mixer internal effect (suggested footswitch is PROEL model GF29).
40. MIX / 1-2 switch
This switch assigns the FX output signal to the MAIN MIX bus (if dis-engaged) or to the GROUP 1-2 bus (if engaged).
Typically, it is set to MIX if the internal effect is used only for channels assigned to MIX bus or to 1-2 if the internal effect
is used only for channels assigned to 1-2 bus.
41. FX SOLO switch and LED
This switch allows you to hear the signals of FX send (PFL) or FX return (AFL) through your headphones or control room
outputs and to display the level on LED meters.
42. FX LEVEL control
It adjusts the level of the internal effect signal sent to the MAIN MIX or GROUPS 1-2 outputs.
43. AUX 1 SEND LEVEL control
It adjusts the general level of the AUX 1 SEND output. This control ranges from offto +15 dB of gain when fully clockwise.
44. AUX 2 SEND LEVEL control
It adjusts the general level of the AUX 2 SEND output. This control ranges from offto +15 dB of gain when fully clockwise.
45. AUX 3 SEND LEVEL control
It adjusts the general level of the AUX 3 SEND output. This control ranges from offto +15 dB of gain when fully clockwise.
46. AUX SEND 1 jack output
This jack connector sends out unbalanced line-level signals made of the sum of the input channel’s AUX 1 sends, usually
for connecng to the inputs of an external effect devices or stage monitor amplifiers.
47. AUX SEND 2 jack output
This jack connector sends out unbalanced line-level signals made of the sum of the input channel’s AUX 2 sends, usually
for connecng to the inputs of an external effect devices or stage monitor amplifiers.
48. AUX SEND 3 jack output
This jack connector sends out unbalanced line-level signals made of the sum of the input channel’s AUX 3 sends, usually
for connecng to the inputs of an external effect devices or stage monitor amplifiers. This signal can be pre or post fader,
it depends how POST switch (14) of each channel is set, usually all buons are set as pre or post.
49. AUX SEND 4 jack output
This jack connector sends out unbalanced line-level signals made of the sum of the input channel’s AUX 4 sends, usually
for connecng to the inputs of an external effect devices. This signal is post-fader, or in other words it depends on the
posion of the channel’s FADER.
50. AUX RETURN jack input
Unbalanced jack connectors of the auxiliary stereo input (note: the L input can be used as MONO if R input is le
unconnected). This input can be used for the return signal from outboard effects or for connecng any instrument or
equipment with a line output.
51. AUX RETURN TO MIX level control
It adjusts the level of the AUX RETURN inputs and send it to the MAIN MIX.
52. AUX RETURN TO AUX 1 level control
It adjusts the level of the AUX RETURN inputs and send it to the AUX 1 output.
53. AUX RETURN TO AUX 2 level control
It adjusts the level of the AUX RETURN inputs and send it to the AUX 2 output.
54. GROUPS 1-2 FADER control
The GROUP 1-2 FADERS control the level of the GROUP 1-2 bus to its outputs or, if "GRP TO MIX" switch is down, to the
MAIN MIX bus.
55. GRP TO MIX switch
This switch assigns the GROUP 1-2 bus to the MAIN MIX bus. As explained earlier, pushing down this switch you can use
the GROUP 1-2 as sub-mix groups, enabling you to control the level of several channels with one knob.
56. MAIN MIX FADER level control
The MAIN MIX FADER controls the output level just before the MAIN MIX outputs. When the fader is fully down the
MAIN MIX is off, the “0” marking indicates a +4 dBu nominal output level. Typically this fader is set near the “0” label
and lealone, but it can be used for song fadeouts or quick system-wide mutes.
NOTE: the MAIN OUT is a true balanced output that can send the signal on a balanced line with or without a phantom
power acve. So the M1622USB mixer can also be used as a combinaon mixer + DI box for sending the signals to a

16
bigger main mixer console.
57. GROUPS 1-2 jack output
These JACK connectors provide an unbalanced line-level signal from the GROUPS 1-2 stereo bus signal overall controlled
by the GROUPS 1-2 FADER level control.
58. MAIN MIX INSERT Input output
This is where you connect serial effects before the MAIN MIX FADER control. These serial effects usually are compressors
or equalizers. The send is low-impedance (150 ohms), capable of driving any line-level device. The return is high-
impedance (10k ohms) and can be driven by almost any device. Specialty “Y” cables, designed just for this applicaon,
are widely available on shops. Specialty “Y” cables, developed just for these jacks, are widely available on shops. Proel
suggested type is DHT540 (1.8 mt - 5.9 ). See also connecon chapter on this manual.
59. MAIN MIX L & R xlr and jack output (balanced)
These XLR and jack connectors provide a balanced line-level signal that represents the fully mixed stereo signal
controlled by the MAIN MIX fader. Connect these to the inputs of your power amplifier, powered speaker or processors
(equalizers, mul-band compressors and so on).
60. 2TRK inputs
Use these unbalanced RCA connectors to patch the output of a player, such as an analog tape deck, MP3 player, CD/DVD
player or a Personal Computer.
61. USB/2TRK IN level control
It adjusts the level of the 2TRK INPUT and USB input (audio signal from PC).
62. MIX - CH15/16 switch
This switch routes the 2TRK IN or USB input signal directly to MAIN MIX outputs or to the channel 15/16. Roung the
signal to channel 15/16, you can use all features of the stereo channel before sending the signal to the MAIN MIX:
equalizaon, aux sends and the internal effect processor.
63. 2 TRK OUT PEAK detector
If the peak LED flashes mean that the signal is too high, near to the clipping the output stage. In this case, reduce the
level of the USB/2TRK OUT level control.
64. MIX - AUX 1-2 switch
This switch selects which signal is sent to the 2TRK OUT and to the USB port. Choosing the MAIN MIX signal you can
record a whole mix session such as a live performance. Choosing AUX 1-2 you can record ll two different instruments
in two different tracks of your DAW recording soware, roung them thru AUX 1 and AUX 2 respecvely and using the
MAIN MIX for monitoring.
65. USB/2TRK OUT level control
It adjust the level of signal sent to the 2TRK OUTPUT and to the USB port. This control is aer the MAIN MIX fader
control.
66. 2TRK outputs
Use these unbalanced RCA connectors to send out the MAIN MIX or AUX 1/2 signals to a recorder, such as an analog
tape or an A/D converter connected to a Personal Computer.
67. USB PORT socket
It routes the 2TRK OUT and the 2TRK IN through the USB port in crystal-clean, 16-bit, 44.1 kHz stereo digital audio. Use
the M1622USB as a high-quality soundcard for recording and playback with Windows and Macintosh computers.
VERY IMPORTANT INFORMATIONS:
- The M1622USB internal USB soundcard needs a personal computer with a USB 2.0 port and a Windows (XP or later)
or Mac OSX (10.3 or later) Operang Systems.
- The internal USB soundcard DOESN'T REQUIRE A DEDICATE SOFTWARE DRIVER to work with Windows or Mac OSX.
- For in/out signal roung inside the computer and the DAW soware refer to the documentaon included with the
computer and DAW soware.
- Tipically, aer you have connected the USB cable and powered on the mixer, the M1622USB soundcard is visible from
the computer and DAW soware as: "USB Audio CODEC" (or with a similar name, depending on the OS version).
68. EQ IN / BYPASS switch
Engaging this switch you bypass the 7-band STEREO graphic equalizer, whether is used on MIX outputs or on AUX
sends.
69. MIX L / AUX 1 switch
This buon assigns the LEFT channel of the 7-band STEREO graphic equalizer to MIX LEFT (switch released) or to AUX
1 send (buon pressed). Use the equalizer on the MIX outputs to correct the response of your main speaker system or

17
use it on the AUX's sends to avoid feedbacks on stage monitors.
IMPORTANT: press always both MIX L / AUX1 and MIX R / AUX2 switches to assign both the equalizers channels at the
same me to MIX outputs LEFT & RIGHT or to AUX's sends 1 & 2.
70. MIX R / AUX 2 switch
This buon assigns the RIGHT channel of the 7-band STEREO graphic equalizer to MIX RIGHT (switch released) or to
AUX2 send (buon pressed). Use it ALWAYS together with MIX L / AUX 2 buon.
71. STEREO GRAPHIC EQ slider
These sliders gives you up to 15 dB boost or cut at 63 Hz, 125 Hz, 400 Hz, 1 KHz, 2.5 KHz, 8 KHz and 16 KHz.
72. STAND-BY switch
Engage the STAND-BY switch and instantly the enre MAIN MIX is switched off. You can use this switch as a MASTER
MUTE while you are waing for the gig to start. Since the 2TRK IN input it's sll assigned to the MAIN MIX when the
STAND-BY buon is pressed, you can also play some music during the intermission. When it's me to start the gig, just
release the buon and all musicians will be ready to play.
73. L & R LEVEL METERS
The level meters are made of two columns of of twelve LEDs with three colours to indicate different ranges of signal
level:
• green = shows the normal operave level of the signal (from -30 to +4 dBu)
• yellow = shows the nominal operave level of the signal (from +7 to +10 dBu)
• red = shows a high signal level (near +20 dBu CLIP level).
If the SOLO switch is dis-engaged, the meters display what is selected by (75) (76) and (77) switches, choosing between
MAIN MIX (post fader), GROUP 1-2 (post fader) or 2TRK IN.
If one or more SOLO switches are engaged, the meters display the solo informaon. If the SOLO MODE is set as PFL
(pre fader level) the meters show only a mono signal on both column, if it is set as AFL (aer fader level) they show the
stereo signal aer the channel FADER and PAN controls.
NOTE: in order to obtain a proper visualizaon, we recommend to press only one switch at a me.
74. SOLO MODE switch
Allows to select if the listening and the visualizaon of the channels selected with the SOLO buons are PRE FADER
(PFL) or POST FADER (AFL).
- PFL: PRE-FADER LEVEL, the input signal, already controlled by the channel EQ, is shown on the LED METERS and sent
to the C.ROOM/PHONES outputs. The PFL mode has to be used for seng the right level of the input signal (usually
around 0 dB) and to avoid input saturaon and distoron.
- AFL: AFTER-FADER LEVEL, the input signal, already controlled by the channel EQ and by the channel fader, is shown on
the LED METERS and sent to the C.ROOM/PHONES outputs.
75. 2TRK to C.ROOM switch
Push this switch to send the 2TRK input signal and USB input signal to C.ROOM and PHONES outputs.
76. MIX to C.ROOM switch
Push this switch to send the MIX bus signal to C.ROOM and PHONES outputs.
77. 1-2 to C.ROOM switch
Push this switch to send the GROUP 1-2 bus signal to C.ROOM and PHONES outputs.
NOTE: for a correct operaon we suggest to choose these three switches (75) or (76) or (77) one a me.
IMPORTANT: these switches also select which signal is displayed on LED METERS when none channel is soloed.
78. C.ROOM/PHONES LEVEL control
This controls the CONTROL ROOM and PHONES output’s level.
NOTE: The signal at these outputs is the same.
79. C.ROOM jack outputs
These JACK connectors provide an unbalanced line-level signal that can be used to monitor the MAIN MIX / GRP 1-2 /
USB 2TRK IN program or what is soloed.
80. PHONES stereo jack output
STEREO JACK connector for the headphones output: only stereo headphones with a minimum impedance of 32 Ohms
should be connected to this output.
81. LAMP 12V / 0.5A socket
This BNC connector provides +12V power supply for gooseneck lamps. Use only lamps with MAX 5W power consumpon.
PROEL suggested types are SDC670 or SDC670LED.

18
82. +48V phantom switch and LED
This switch acvates (LED on) and deacvates (LED off) the phantom power on MIC Inputs. Most professional condenser
microphones require phantom power, which is a lower DC voltage delivered to the microphone on pin 2 and 3 of the
XLR microphone connector. Dynamic microphones do not require phantom power, however phantom power will not
harm most dynamic microphones should you plug one in while the phantom power is on. Check the manual of your
microphone to find out for sure whether or not phantom power can damage it.
83. ON led
Indicates when the mixer is switched on.
84. POWER switch
Make sure that all master output knobs are turned all the way down when powering your mixer up or down.
85. AC~ socket
Here’s where you plug in your mixer’s mains supply cord. You should always use the mains cord supplied with the mixer.
Be sure your mixer is turned offbefore you plug the mains supply cord into an electrical outlet.
86. FUSE holder
Here is placed the mains protecon fuse. Please follow the instrucons on page 10 of this manual to replace it.
87. PRODUCT LABEL
In this label are wrien the most important informaon about the mixer, model, line voltage, consumpon, serial
number.

19
LINGUA ITALIANA
AVVERTENZE PER LA SICUREZZA
• ATTENZIONE: Durante le fasi di uso o manutenzione, devono essere prese alcune precauzioni onde evitare danneggiamenalle struure
meccaniche ed eleroniche del prodoo.
Prima di ulizzare il prodoo, si prega di leggere aentamente le seguenistruzioni per la sicurezza. Prendere visione del manuale d’uso e
conservarlo per successive consultazioni:
– In presenza di bambini, controllare che il prodoo non rappresenun pericolo.
– Posizionare l’apparecchio al riparo dagli agenatmosferici e a distanza di sicurezza dall’acqua, dalla pioggia e dai luoghi ad alto grado di umidità.
– Collocare o posizionare il prodoo lontano da fondi calore quali radiatori, griglie di riscaldamento e ogni altro disposivo che produca calore.
– Evitare che qualsiasi oggeo o sostanza liquida entri all’interno del prodoo.
– Il prodoo deve essere connesso esclusivamente alla rete elerica delle caraerische descrie nel manuale d’uso o scrie sul prodoo, usando
esclusivamente il cavo rete in dotazione e controllando sempre che sia in buono stato, in parcolare la spina e il punto in cui il cavo esce dal prodoo.
– ATTENZIONE: Se il cavo rete viene scollegato dall'apparecchio per spegnerlo, il cavo rete rimarrà operavo in quanto la sua spina è ancora
collegata alla rete elerica.
– Disconneere il prodoo dalla rete elerica durante fortemporali o se non viene usato per un lungo periodo di tempo.
– Non disporre oggesul cavo di alimentazione, non disporre i cavi di alimentazione e segnale in modo che qualcuno possa incianparci. Altresì
non disporre l’apparecchio sui cavi di altri appara. Installazioni inappropriate di questo po possono creare la possibilità di rischio di incendio
e/o danni alle persone.
IN CASO DI GUASTO
• In caso di guasto o manutenzione questo prodoo deve essere ispezionato da personale qualificato quando:
– Ci sono difesulle connessioni o sui cavi di collegamento in dotazione.
– Sostanze liquide sono penetrate all’interno del prodoo.
– Il prodoo è caduto e si è danneggiato.
– Il prodoo non funziona normalmente esibendo una marcato cambio di prestazioni.
– Il prodoo perde sostanze liquide o gassose o ha l’involucro danneggiato.
• Non intervenire sul prodoo. Rivolgersi a un centro di assistenza autorizzato Proel.
CONFORMITÀ CE
• I ProdoProel sono conformi alla direva 2004/108/EC (EMC), secondo lo standard EN 55013 ed alla direva 2006/95/CE (LVD), secondo lo
standard EN 60065.
• Se sooposto a disturbi EM, il rapporto segnale-rumore può essere superiore a 10dB.
IMBALLAGGIO, TRASPORTO E RECLAMI
• L’imballo è stato sooposto a test di integrità secondo la procedura ISTA 1A. Si raccomanda di controllare il prodoo subito dopo l’apertura dell’imballo.
• Se vengono riscontradanni informare immediatamente il rivenditore. Conservare quindi l’imballo completo per permeerne l’ispezione.
• Proel declina ogni responsabilità per danni causadal trasporto.
• Le merci sono vendute “franco nostra sede” e viaggiano sempre a rischio e pericolo del distributore.
• Eventuali avarie e danni dovranno essere contestaal veore. Ogni reclamo per imballi manomessi dovrà essere inoltrato entro 8 giorni dal ricevimento.
GARANZIE E RESI
• I ProdoProel sono provvisdella garanzia di funzionamento e di conformità alle proprie specifiche, come dichiarate dal costruore.
• La garanzia di funzionamento è di 24 mesi dopo la data di acquisto. I diferilevaentro il periodo di garanzia sui prodovendu, aribuibili a materiali
difeosi o difedi costruzione, devono essere tempesvamente segnalaal proprio rivenditore o distributore, allegando evidenza scria della data
di acquisto e descrizione del po di difeo riscontrato. Sono esclusi dalla garanzia difecausada uso improprio o manomissione. Proel SpA constata
tramite verifica sui resi la difeosità dichiarata, correlata all’appropriato ulizzo, e l’effeva validità della garanzia; provvede quindi alla sostuzione o
riparazione dei prodo, declinando tuavia ogni obbligo di risarcimento per danni direo indireeventualmente derivandalla difeosità.
INSTALLAZIONE E LIMITAZIONI D’USO
• I ProdoProel sono desnaesclusivamente ad un ulizzo specifico di po sonoro: segnali di ingresso di po audio (20Hz-20kHz). Proel declina ogni
responsabilità per danni a terzi causada mancata manutenzione, manomissioni, uso improprio o installazione non eseguita secondo le norme di sicurezza.
• La Proel S.p.a. si riserva di modificare il prodoo e le sue specifiche senza preavviso.
• Proel declina ogni responsabilità per danni a terzi causada mancata manutenzione, manomissioni, uso improprio o installazione non eseguita
secondo le norme di sicurezza e a regola d'arte.
ALIMENTAZIONE E MANUTENZIONE
• Pulire il prodoo unicamente con un panno asciuo.
• Prima di collegare l'apparecchio alla presa di corrente, accertatevi che la tensione di rete corrisponda a quella indicata sul retro dell’apparato, è
consento un margine del ±10% rispeo al valore nominale.
• CONTROLLARE LO STATO DEL FUSIBILE DI PROTEZIONE ACCESSIBILE DALL'ESTERNO ESCLUSIVAMENTE AD APPARATO SPENTO E
DISCONNESSO DALLA RETE ELETTRICA.
• RIMPIAZZARE IL FUSIBILE DI PROTEZIONE ESCLUSIVAMENTE CON UN FUSIBILE CON LE MEDESIME CARATTERISTICHE RIPORTATE
SUL PRODOTTO.
• SE DOPO LA SOSTITUZIONE, IL FUSIBILE INTERROMPE NUOVAMENTE IL FUNZIONAMENTO DELL'APPARATO, NON INSISTERE E
CONTATTARE IL SERVIZIO ASSISTENZA PROEL.

20
INFORMAZIONI GENERALI
Grazie per aver scelto un prodoo PROEL.
I nuovi modelli della serie M sono staaggiornacon nuove e migliori caraerische e con un design innovavo e
originale. Oltre a mantenere i pundi forza della precedente serie M, tra cui la qualità audio superiore, un set completo
di funzioni e il maggiore numero di ingressi MIC della categoria, tui nuovi modelli serie M dispongono del nuovo DSP
PROEL a 24bit PROFEX, uno dei migliori effedigitali ulizzasu mixer compa, che include 256 algoritmi di qualità
studio (inclusi TAP DELAY mono e stereo) ed un ule display LED a 2 digit.
Progeaed ingegnerizzain Italia da PROEL, i mixer M sono alloggiain telai di metallo ultra-robused elegan
con fianchi in ABS, in grado di garanre un uso prolungato a prova di palco. Tui modelli includono sia una borsa da
trasporto imbota che adaatori per il montaggio in rack da 19”.
Il nuovo mixer M1622USB, dispone di 16 ingressi di cui 12 microfonici come il modello precedente, include una mandata AUX in
più e una flessibile gesone del segnale USB del computer e dotato inoltre di un COMPRESSORE per ogni ingresso MONO.
ISTRUZIONI OPERATIVE (FIG. 1 / 2)
1. MIC (ingresso microfono)
È un conneore femmina XLR, in grado di acceare un segnale microfonico bilanciato da ogni po di microfono.
L’ingresso XLR ha i seguenterminali:
Pin 1 = schermo o massa
Pin 2 = + posivo o “caldo”
Pin 3 = - negavo o “freddo”
2. LINE (ingresso linea)
È un conneore femmina da ¼” (6.3mm) po jack, in grado di acceare un segnale a livello linea bilanciato o sbilanciato
da ogni po di sorgente. Quando si collega un segnale bilanciato, le terminazioni sono le seguen:
Tip (punta) = + posivo o “caldo”
Ring (anello) = - negavo o “freddo”
Sleeve (manicoo) = schermo o massa
Quando si collega un segnale sbilanciato, le terminazioni sono le seguen:
Tip (punta) = + posivo o “caldo”
Sleeve (manicoo) = schermo o massa
3. INSERT (ingresso-uscita effeo)
A questo conneore possono essere collegaeffeseriali quali compressori, equalizzatori, de-essers o filtri. La mandata
è a bassa impedenza (150 ohms), capace di pilotare ogni po di disposivo con livello linea. Il ritorno è ad alta impedenza
(10k ohms) e può essere collegato ad ogni po di disposivo con livello linea. Speciali cavi “Y”, realizzaappositamente
per questa uscita jack, sono disponibili presso i negozi. Proel suggerisce il po DHT540 (1.8 mt - 5.9 ). Consultare anche
il capitolo delle connessioni in questo manuale.
4. GAIN (controllo guadagno)
Il controllo GAIN regola la sensibilità di ingresso dell’ingresso MIC o LINE. Questo permee di regolare il segnale in
ingresso da microfoni o strumenal livello omale interno del mixer. Se il segnale è collegato all’ingresso XLR si hanno 0
dB di guadagno con la manopola girata al minimo e fino a 60 dB girandola verso il massimo. Quando collegato all’ingresso
jack si hanno 20 dB di aenuazione con la manopola girata al minimo e 40 dB di guadagno se girata al massimo, con un
guadagno unitario (0 dB) se posta al centro.
5. LO CUT (filtro elimina bassi)
Questo tasto elimina le basse frequenze al di soo dei 75 Hz con 18 dB per oava. L’uso del filtro LO CUT è consigliato
su ogni microfono ecceo la grancassa, il basso, sintezzatori o tracce pre-registrate. Infa, tranne che per ques
strumen, per tugli altri al di soo di tale frequenza in genere non c’è nulla da ascoltare, eliminandoli i bassi restan
al di sopra dei 75Hz saranno più incisivi e piacevoli. Non solo ma dal vivo, in abbinamento al EQ LOW e in parcolare
sulle voci, l’uso del filtro LO CUT riduce la possibilità di rientri (feedback) e preserva la potenza dell’amplificatore. LO CUT
elimina i rumori da maneggiamento dei microfoni, da vibrazioni del palco e dal respiro, rendendo possibile aumentare
i bassi con EQ LOW per dare maggior vigore alla voce.
6. COMP compressor control and LED
Ciascun canale mono include un compressore a controllo singolo, in grado di regolare il range dinamico del segnale e
di aumentarne l'intensità. Ruotando il controllo verso destra, i segnali di livello più elevato vengono limitaper evitare
clipping, mentre le pardi livello più basso vengono incrementate, producendo un suono omogeneo e uniforme, senza
picchi eccessivi o distorsioni.
Il LED adiacente si accende quando ,superata una certa soglia, si abilita la compressione.
NOTA: Evitare di usare compressioni troppo elevate, infaalzandosi il volume medio del segnale potrebbero