PROEL HPD2004 User manual

HPD2004
HPD4004
4 channel power amplier
USER MANUAL
MANUALE D'USO
PROTECT
BRIDGE
ON
LIMIT
SIGNAL
PROTECT
LIMIT
SIGNAL
PROTECT
BRIDGE
ON
LIMIT
SIGNAL
PROTECT
LIMIT
SIGNAL

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 modica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 o
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 dierent 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 oce, 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 ash 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 sucient 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 modica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 riu 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 riu 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’ucio locale preposto per tue le informazioni relave alla raccolta
dierenziata e al riciclaggio per questo po di prodoo. Gli uten aziendali sono invita a contaare il proprio fornitore e vericare i
termini e le condizioni del contrao di acquisto. Questo prodoo non deve essere smalto unitamente ad altri riu 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 suciente 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 modiche 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
TECHNICAL SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SETUP AND RACK MOUNTING (FIG. 1 / 2).................4
LOUDSPEAKER CABLE .................................4
CONNECTIONS ......................................5
FILTER RESPONSE (FIG.3) ..............................5
DIMENSIONS (FIG.4)..................................6
FRONT PANEL (FIG.4) .................................6
REAR PANEL (FIG.5) ..................................7
EXAMPLE A .........................................8
EXAMPLE B .........................................8
EXAMPLE C .........................................9
EXAMPLE D .........................................9
SAFETY AND PRECAUTIONS .......................... 10
IN CASE OF FAULT .................................. 10
TROUBLESHOOTING ................................ 10
CE CONFORMITY................................... 11
PACKAGING, SHIPPING AND COMPLAINT ............... 11
WARRANTY AND PRODUCTS RETURN .................. 11
INSTALLATION AND DISCLAIMER ...................... 11
POWER SUPPLY AND MAINTENANCE .................. 11
GENERAL INFORMATION ............................ 12
INSTRUCTIONS .................................... 12
INDICE
SPECIFICHE TECNICHE ................................3
INSTALLAZIONE A RACK (FIG. 1 / 2) ......................4
CAVO ALTOPARLANTE.................................4
CONNESSIONI .......................................5
RISPOSTA FILTRI (FIG.3) ...............................5
DIMENSIONI (FIG.4) ..................................6
PANNELLO FRONTALE (FIG.4)...........................6
PANNELLO POSTERIORE (FIG.5) .........................7
ESEMPIO A .........................................8
ESEMPIO B .........................................8
ESEMPIO C .........................................9
ESEMPIO D .........................................9
AVVERTENZE PER LA SICUREZZA ...................... 15
IN CASO DI GUASTO ................................ 15
PROBLEMATICHE COMUNI........................... 15
CONFORMITÀ CE................................... 16
IMBALLAGGIO, TRASPORTO E RECLAMI ................ 16
GARANZIE E RESI .................................. 16
INSTALLAZIONE E LIMITAZIONI D’USO.................. 16
ALIMENTAZIONE E MANUTENZIONE ................... 16
INFORMAZIONI GENERALI ........................... 17
ISTRUZIONI ....................................... 17
MODEL HPD2004 HPD4004 MODELLO HPD2004 HPD4004
Channels 4 (single) or 2 (bridge) Canali 4 (singoli) o 2 (ponte)
Power 8 ohm * 250 W 500 W Potenza Connua 8ohm* 250 W 500 W
Power 4 ohm * 500 W 1000 W Potenza Connua 4ohm* 500 W 1000 W
Power BRIDGE 8 ohm * 1000 W 2000 W Pot. Cont. BRIDGE 8ohm* 1000 W 2000 W
Frequency response 20 Hz - 20 kHz Risposta in Frequenza 20 Hz - 20 kHz
Input Sensivity
(selectable)
Nominal: 0 dBu
Fixed: +3 dBu
Nominal: 0 dBu
Fixed: +5 dBu
Sensibilità Ingresso
(selezionabile)
Nominale: 0 dBu
Fissa: +3 dBu
Nominale: 0 dBu
Fissa: +5 dBu
Gain (nominal) 35 dB 38 dB Guadagno (nominale) 35 dB 38 dB
Gain (xed) 32 dB 32 dB Guadagno (sso) 32 dB 32 dB
Input Impedance 30 Kohm (bal) / 15 Kohm (unbal) Impedenza Ingresso 30 Kohm (bilanciato) / 15 Kohm (sbilanciato)
Input Connectors INPUT: COMBO (XLR-F/JACK)
LINK: XLR-M
Conneori Ingresso INPUT: COMBO (XLR-F/JACK)
LINK: XLR-M
Output Connectors NL4 Speakon
(4x single, 2x bridge)
Conneori Uscita NL4 Speakon
(4x singoli, 2x ponte)
Controls Level, HPF lter, BI-AMP crossover, Stereo /
Parallel / Bridge mode, GND li
Controlli Level, HPF lter, BI-AMP crossover, Stereo /
Parallel / Bridge mode, GND li
LED Indicators Signal, Limit, Protecon, Bridge, Power Indicatori LED Signal, Limit, Protecon, Bridge, Power
Cooling 2x Variable speed DC fan Rareddamento 2 Ventole DC a velocità variabile
Protecons Clip Limiter, Short circuit, DC voltage, Over
heang
Protezioni Clip Limiter, Short circuit, DC voltage, Over
heang
Damping Factor > 500 @ 8 ohm Faore Smorzamento > 500 @ 8 ohm
Slew Rate 50 V/uS Velocità di risposta 50 V/uS
S/N Rao > 105 dB (unweighted) Rapporto S/R > 105 dB (unweighted)
THD+N < 0.5 % Distorsione + Rumore < 0.5 %
Power Supply 230 V~ or 120 V~ - 50/60 Hz Tensione alim. di rete 230 V~ or 120 V~ - 50/60 Hz
Max Consumpon 2900 W 5300 W Consumo massimo 2900 W 5300 W
Rated Consumpon** 800 W 1350 W Consumo nominale** 800 W 1350 W
Weight 11 Kg (24.3 lb) Peso 11 Kg (24.3 lb)
Dimensions (W x H x D) 483 x 89 x 383 mm (19 x 3.5 x 16.2 inch)19 x 3.5 x 16.2 inch) Dimensioni (LxAxP) 483 x 89 x 383 mm (19 x 3.5 x 16.2 inch)19 x 3.5 x 16.2 inch)
* Standard EIA 1KHz THD < 1%
** Rated consumpon is measured with pink noise with a crest factor of 12
dB, this can be considered a standard music program.
* Standard EIA 1KHz THD < 1%
** Il consumo nominale  misurato con un rumore rosa con un faore di cresta* Il consumo nominale  misurato con un rumore rosa con un faore di cresta
di 12 dB, considerato come un programma standard di musica.
TECHNICAL SPECIFICATIONS SPECIFICHE TECNICHE

4
SETUP AND RACK MOUNTING (FIG. 1 / 2) INSTALLAZIONE A RACK (FIG. 1 / 2)
COLD AIR
FRONTALE
8U OPEN RACK
10U closed RACK
RACK aperto 8U
RACK chiuso 10U
POSTERIORE
FRONT REAR
FRONTALE POSTERIORE (chiuso)
FRONT REAR (closed)
ARIA FREDDA
COLD AIR
ARIA FREDDA
HOT AIR
HOT AIR
ARIA CALDA
ARIA CALDA
15 cm
6 inch
RECOMMENDED INSTALLATION
INSTALLAZIONE RACCOMANDATA
EVENTUAL INSTALLATION WITH CLOSED BACK
EVENTUALE INSTALLAZIONE CON RETRO CHIUSO
FIG.1
FIG.2
LOUDSPEAKER CABLE CAVO ALTOPARLANTE
ENGLISH: Loudspeaker Line Losses (maximum permissible line lengths for 0.5dB losses, voltage or spl)
ITALIANO: Perdite di collegamento linee Altoparlanti (massima lunghezza possibile per perdite inferiori a 0.5dB, tensione o spl)
4 ohm load 8 ohm load Wire secon data PROEL recommended cables
feet meter feet meter mm² AWG 2 wires 4 wires 2 wires Fire-resistant
75 25 150 50 4.0 12 HPC624 HPC644 HPC624FRS
50 17.5 100 35 2.0 14 HPC620 HPC640 HPC620FRS
30 10 60 20 1.5 16 HPC610 HPC610FRS
20 7.5 40 15 1.0 18 HPC600
this is a short extracon of the wide assortment of cables available from PROEL, please visit our website at www.proelgroup.com

5
CONNECTIONS CONNESSIONI
sleeve - ground
INPUT (ingresso)
Jack (bilanciato)
INPUT
Jack (balanced)
p - hot
ring - cold
INPUT (ingresso)
XLR bilanciato maschio
INPUT
Balanced male XLR
POWER OUTPUT - uscite altoparlan
Conneore per cavo po Speakon Neutrik NL4
PROEL code - NL4FX
Codice PROEL - NL4FX
PROEL code - NL4FX
Codice PROEL - NL4FX
SPEAKER POWER OUTPUTS
Neutrik NL4 Speakon Cable Connector
ground
hot
cold
INPUT (ingresso)
Jack (sbilanciato)
INPUT
Jack (unbalanced)
ground
p - hot
cold
*nota: conneere insieme cold e ground per cavi da bilanciato a sbilanciato
*note: connect both cold and ground to make cable from balanced to unbalanced
2-
1+
2+
1-
20mm
0.8"
8mm
0.3"
RED
BLACK
posive / red / rosso
n.c. 1+
negave / black / nero
1-
n.c.
POWER OUTPUT - uscite altoparlan
Conneore per cavo po Speakon Neutrik NL4
SPEAKER POWER OUTPUTS
Neutrik NL4 Speakon Cable Connector
2-
1+
2+
1-
channel 1 posive
canale 1 posivo
1+
channel 1 negave
canale 1 negavo
1-
OUTPUT 1
2-
1+
2+
1-
bridge posive
n.c. 1+
bridge negave
1-
n.c.
OUTPUT BRIDGE
2-
1+
2+
1-
20mm
0.8"
8mm
0.3"
RED
BLACK
channel 2 posive
n.c. 1+
channel 2 negave
1-
n.c.
OUTPUT 2
uscita 1uscita BRIDGEuscita 2
channel 2 negave
canale 2 negavo
NOTE: channels 3 and 4 are equal to channel 1 and 2 respecvely.
NOTA: i canali 3 e 4 sono equivalen ai canali 1 e 2 rispevamente.
2-
channel 2 posive
canale 2 posivo
2+
LINK (rilancio ingresso)
XLR bilanciato femmina
LINK
Balanced female XLR
ground
hot
cold
sleeve - ground
INPUT (ingresso)
Jack (bilanciato)
INPUT
Jack (balanced)
p - hot
ring - cold
INPUT (ingresso)
XLR bilanciato maschio
INPUT
Balanced male XLR
POWER OUTPUT - uscite altoparlan
Conneore per cavo po Speakon Neutrik NL4
PROEL code - NL4FX
Codice PROEL - NL4FX
PROEL code - NL4FX
Codice PROEL - NL4FX
SPEAKER POWER OUTPUTS
Neutrik NL4 Speakon Cable Connector
ground
hot
cold
INPUT (ingresso)
Jack (sbilanciato)
INPUT
Jack (unbalanced)
ground
p - hot
cold
*nota: conneere insieme cold e ground per cavi da bilanciato a sbilanciato
*note: connect both cold and ground to make cable from balanced to unbalanced
2-
1+
2+
1-
20mm
0.8"
8mm
0.3"
RED
BLACK
posive / red / rosso
n.c. 1+
negave / black / nero
1-
n.c.
POWER OUTPUT - uscite altoparlan
Conneore per cavo po Speakon Neutrik NL4
SPEAKER POWER OUTPUTS
Neutrik NL4 Speakon Cable Connector
2-
1+
2+
1-
channel 1 posive
canale 1 posivo
1+
channel 1 negave
canale 1 negavo
1-
OUTPUT 1
2-
1+
2+
1-
bridge posive
n.c. 1+
bridge negave
1-
n.c.
OUTPUT BRIDGE
2-
1+
2+
1-
20mm
0.8"
8mm
0.3"
RED
BLACK
channel 2 posive
n.c. 1+
channel 2 negave
1-
n.c.
OUTPUT 2
uscita 1uscita BRIDGEuscita 2
channel 2 negave
canale 2 negavo
NOTE: channels 3 and 4 are equal to channel 1 and 2 respecvely.
NOTA: i canali 3 e 4 sono equivalen ai canali 1 e 2 rispevamente.
2-
channel 2 posive
canale 2 posivo
2+
LINK (rilancio ingresso)
XLR bilanciato femmina
LINK
Balanced female XLR
ground
hot
cold
FILTER RESPONSE (FIG.3) RISPOSTA FILTRI (FIG.3)
-0
+6
+12
+18
+24
+30
+36
dBu
20k
50 100 200 500 1k 2k 5k 10k
Hz
20
BI-AMP (CH1) BI-AMP (CH2)
HP (CH1-CH2)

6
PROTECT
BRIDGE
ON
LIMIT
SIGNAL
PROTECT
LIMIT
SIGNAL
PROTECT
BRIDGE
ON
LIMIT
SIGNAL
PROTECT
LIMIT
SIGNAL
FRONT PANEL (FIG.4) PANNELLO FRONTALE (FIG.4)
DIMENSIONS (FIG.4) DIMENSIONI (FIG.4)
48,3 cm
19.0 inch
43,4 cm
17,0 inch
36,7 cm
14.5 inch
8,9 cm
3.5 inch
4,2 cm
1.65 inch

7
REAR PANEL (FIG.5) PANNELLO POSTERIORE (FIG.5)

8
EXAMPLE B ESEMPIO B
L
1+ 1-
8Ω minimum 8Ω minimum
set as BRIDGE for doubled power for
2 loudspeakers driven from a L/R audio channels
and
set as HPF if used in combinaon with
subwoofers or as stage monitors
1+ 1-
R
EXAMPLE A ESEMPIO A
a2 a1
L
1+ 1-
4Ω minimum 4Ω minimum 4Ω minimum 4Ω minimum
set as STEREO for 4 indipendent channels
or
set as PARALLEL for 2 channel pairs
driven from a L/R audio channels
1+ 1- 1+ 1- 1+ 1-
R
a4 a3

9
EXAMPLE D ESEMPIO D
L
1+ 1-
mid-high speaker
4Ω minimum
low subwoofer
4Ω minimum
mid-high speaker
4Ω minimum
low subwoofer
4Ω minimum
set as PARALLEL for 2 channel pairs
driven from a L/R audio channels
and
set as BI-AMP for 100Hz 24dB/oct.
crossover frequency
1+ 1- 1+ 1- 1+ 1-
R
EXAMPLE C ESEMPIO C
L
1+ 1-
subwoofer
8Ω minimum
subwoofer
8Ω minimum
set as BRIDGE for 2 subwoofer
driven from a L/R audio channels
and
set as BI-AMP for 100Hz 24dB/oct.
low pass filter
1+ 1-
R

10
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.
– This product should be located so that its locaon or posion does not interfere with its proper venlaon and heang dissipaon.
– 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.
– Do not cancel the safety feature assured by means of a polarized line plug (one blade wider than the other) or with a earth connecon.
– Make sure that power supply mains line has a proper earth connecon.
– 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 re hazard
and/or personal injury.
– This product may be capable of producing sound levels that could cause
permanent hearing loss. Exposure to extremely high noise levels may cause
permanent hearing loss. Individuals vary considerably in suscepbility to noise-
induced hearing loss, but nearly everyone will lose some hearing if exposed
to sufficiently intense noise for a period of time. The U.S. Government’s
Occupational Safety and Health Administration (OSHA) has specified the
permissible noise level exposures shown in the following chart. According to
OSHA, any exposure in excess of these permissible limits could result in some
hearing loss. To ensure against potenally dangerous exposure to high sound
pressure levels, it is recommended that all persons exposed to equipment
capable of producing high sound pressure levels use hearing protectors while
the equipment is in operaon. Ear plugs or protectors in the ear canals or over
the ears must be worn when operang the equipment in order to prevent
permanent hearing loss if exposure is in excess of the limits set forth here. Keep
your's aenon that children and pets are more suscepble to excessive noise
levels.
IN CASE OF FAULT
• In case of fault or maintenance this product should be inspected only by qualied service personnel when:
– There is a aw 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.
TROUBLESHOOTING
No Power • The amplier's "POWER" switch is o.
• Make sure the mains AC outlet is live (check with a tester or a lamp).
• Make sure the mains plug is securely plugged into mains AC outlet.
No Sound • Is the input LEVEL control for the channel turned up?
• Is the SIGNAL LED illuminated? If not check if your signal level is too low or check the signal cable, mixer and other
equipment seng and cabling.
• Are you sure your signal cables works properly? check it using a cable tester or replacing with a new one.
• Is the SPEAKON cable connector correctly inserted? turn it clockwise unl it clicks.
• Are you sure your power cable works properly? check it using a cable tester or replacing with a new one.
Distorted Sound • Input signal level is too high. Turn down your level controls.
NOTE: The loudspeakers should never be operated at a level which causes the amplier Clip LEDs to illuminate
constantly.
Dierent channel
level
• Check if are using a balanced cable for one channel and an unbalanced one for the other, as this would cause a
considerable dierence in channel levels.
• Be sure that your loudspeaker system is fully connected and both loudspeakers have the same impedance.
Noise / Hum • Enable GND LIFT buon on rear panel, if the problem persist press all GND LIFT buons for all system's ampliers.
• Whenever possible, preferably use only balanced cables. Unbalanced lines may also be used but may result in noise
over long cable runs.
• Somemes it helps to plug all audio equipment into the same AC circuit so they share a common ground.
Duraon Per Day
In Hours
Sound Level dBA
Slow Response
Typical
Example
8 90 Duo in small club
6 92
4 95 Subway Train
3 97
2 100 Very loud classical music
1.5 102
1 105 Trac noise
0.5 110
0.25 or less 115 Loudest parts at a rock concert