PAS Audio DS 22 User manual

DS 22
Dual Dynamic Processor
Professional audio systems
User`s Manual
Version 1. March 2006
ENGLISH
STEREO
COUPLED

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SAFTY INSTRUCTIONS
DETAILED INSTRUCTIONS:
1. All the saft and operation instructions should be read before the appliance is operated.
2. The saft and operating instructions should be retained for future reference.
3. All warnings on the appliance and in the operating instructions should be adhered to.
4. All operation and user instructions should be followed.
5. The appliance should not be used near water ( near a bathtub, washbowl, kitchen sink,
laundr tub, in a wet basement, or near a swimming pool etc.)
6. The appliance should be situated so that its location or position does not interfere with
its proper ventilation. For example, the appliance should not be situated on a bed, sofa
rug, or similar surface that ma block the ventilation openings: or placed in a built-in
installation, such as bookcase or cabinet that ma impede the flow of air through the
ventilation openings.
7. The appliance should be situated awa from heat sources such as radiators, heat
registers, stoves or other appliances, including amplifiers, that produce heat.
8. Connect the equipment to a power suppl of the correct voltage, using onl the cables
recommended b the manufacturer, as specified in the operating instructions and/or
shown on the connection side of the equipment.
9. The appliance ma onl be connected to a legall approved earthed mains power
suppl .
10. The power cable or power cord must be positioned such that it cannot be walked on in
normal use, and objekts which might damage the cable or cord cannot be placed on it
or against it. Special attention must be paid to the point at which the cable is attached
to the appliance and where the cable is connected to the power suppl .
11. Ensure that foreign objects and liquids cannot get into the appliance.
12. The appliance should be cleaned onl as recommended b the manufacturer.
13. The power cord of the appliance should be unplugged from the outlet when left unused
for a long period of time.
14. The appliance should be serviced b qualified service personnel when:
* the power suppl cord or the plug has been damaged
* objects have fallen, or liquid has been spilled into the appliance
* the appliance has been exposed to rain
* the appliance does not appear to operate normall or exhibits a marked change in
performance
* the appliance has been dropped, or the enclosure damaged.
15. The user should not attempt to service the appliance be ond that which is described in
the Operating Instructions. All other servicing should be referred to qualified service
personnel.
CAUTION:
To reduce the risk of electrical shock, do not
remove the cover. No user serviceable parts
inside, refer servicing to qualified personal.
WARNING: To reduce the risk of fire or electrical shock,
do not expose this appliance to rain or
moisture.
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
This s mbol, alerts ou to the presence of
uninsulated dangerous voltage inside the
enclosure, voltage that ma be sufficient
to constitute a risk of shock.
This s mbol, alerts ou to
important operating and
maintenance instructions in
the accompan ing literature.
Read the manual

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TABLE OF CONTENT
Safet Instructions………………… 2
Warrant ………………………………… 4
Changes…………………………………. 4
Foreword…………………………………. 5
Start/Settings………………………….. 5
Connections…………………………… 5
Threshold set…………………………. 6
Stereo-Coupled Switch…………... 6
VCA………………………………………… 7
Rec cling……………………………….. 7
Specifications………………………… 8
Appendix………………………………… 9
PROFESSIONAL PRODUCTS

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WARRANTY
WARRANTYWARRANTY
WARRANTY
PAS audio warrants all new equipment 5 ears warrant from date of purchase. Warrant is
proof of the original invoice document. Within this period all equipment, with full detectable
defects without charge for materials and labor will be repaired b us.
Warrant exclusion
Excluded from warrant -claims is unprofessional actions of Customer or an third part on the
device. The customer has to prove the assertion of warrant -claims, that the defects were not
caused b circumstances that lie in his danger zone, such as incorrect operation, incorrect
installation, incorrect line voltage, or improper interference.
Also excluded from warrant -claims are devices without serial number, made with deliberatel
defaced or altered serial number and modified equipment, if an changes were not made b
PAS audio or authorized persons.
Warrant applies onl to the device itself, not due to error caused b a defective device.
CHANG
CHANGCHANG
CHANGES
ESES
ES
We reserve the right to make changes from time to time on our equipment, without prior notice
or notification.
PAS audio
March 2006
©
b PAS audio
Due to the high qualit of the components and materials we provide on this device
Due to the high qualit of the components and materials we provide on this deviceDue to the high qualit of the components and materials we provide on this device
Due to the high qualit of the components and materials we provide on this device
5 ear warrant
5 ear warrant5 ear warrant
5 ear warrant
detailed
detaileddetailed
detailed information on our warrant terms, please see page 4 of this manual. (see above)
information on our warrant terms, please see page 4 of this manual. (see above) information on our warrant terms, please see page 4 of this manual. (see above)
information on our warrant terms, please see page 4 of this manual. (see above)

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FOREWORD
Congratulations! In purchasing our Limiter DS 22S ou have acquired a limiter whose small
size belies its incredible versatilit and superlative audio performance. Its excellent d namic
range, the extremel low noise level and the outstanding price-performance ratio makes the
DS-22S Controller an advantageous altenative to conventional limiters and controller solutions -
even in the critical field of permanent installation.
Keep this reference anual carefully!
START / SETTINGS
XLR Input/Output connectors
The DS 22S Controller`s Inputs/Outputs are electronicall balanced. (for connection help take a
look at page 8)
Internal direct 5-pin connectors (option)
There is also the possibilit that the unit not connected to the rear panel XLR connectors with
power amplifiers / mixers, etc., but inside the device balanced cables directl without external
separable connector to connect. Unscrew the top cover, (power first disconnect from the
mains!) and connect the electrical cable through the rear opening devices to the internal
header. The label next to the bus bar shows the pin assignments. After adjusting the limiter,
the opening (threshold set) in the front panel could be sealed with the two red stickers, so that
a bridging of the device or manipulation onl possible through the expansion and opening the l
top cover. (Demanded b labor inspectorates in use of the limiter as a volume limiter, for
example, in nightclubs).
Switches
Power-On Switch
Switching the AC-Mains. A red LED lights up at the front panel, if the power switch is at the
“ON” position.
INTE RN
bal.in/ou t
P IN 1 SH IEL D
P IN 2 > +
P IN 3 > -
E LEC TR O NIC ALLY
BA LA N CE D
INP UT S /OU TP U TS
INP UT I MP ED .
20 KO HM
OUT OUTIN IN CH.A CH.B

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Threshold adjust ent.
At the front panel is the displa of each LED and the
adjustment controls for the starting point of limitation
applied. Using a small screwdriver the starting point
(threshold set) can be adjusted from -14 dBV to +13 dBV.
If the speakers should be able to handle the full output
power of the amplifier, the limit should be start 1 dB
below the input voltage which is necessar to provide full
output power of the amplifier.
Thus, the full output power is available, but the speakers are
protected from clipping of the output amplifier. Likewise, of
course, is a power limit of a strong amplifier to the load
capacit of the connected speakers possible, and keeping
a certain predetermined volume. As mentioned above, when the indicator light LED begins to
limit the incoming signal. One can thus determine with the help of the adjusting and
monitoring the light-emitting diode limiter action. The factor setting is at +3 dBV. Clockwise
rotation means earlier onset of the limit, counterclockwise means later onset of the limiter.
LIMIT Indication
As soon as the audio input level exceeds the threshold set-level, the LIMIT-LED lights up.
Stereo-Coupled Switch (at the rear panel)
The DS 22S can run in either dual channel mode or stereo-coupled mode. In dual channel
mode both channels operate independentl . In stereo-coupled mode the control voltages of the
two channels are switched together. The channel with the higher level controls both channels.
So, the stereo base is alwa s the same. A ellow LED at the front panel lights when the DS
22S is switched in stereo-coupled mode.
NOTE
NOTENOTE
NOTE!
!!
!
The limiter should work onl in the upper d namic range. I.e. to protect the connected speakers
are used. The starting point of the DS 22 is then set correctl when the LED lights up at peaks.
Permanent illumination of the displa means, for the proper adjustment of the cutoff point to
high input voltage of eg a mixer.
THRESHOLD ADJUSTMENT

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That (dbx) 2150 SERIES VOLTAGE-CONTROLLED AMPLIFIERS
GENERAL DISCRIPTION
The That (dbx) 2150 Series integrated-circuit, voltage-controlled
amplifiers (VCAS) are high-performance, current-in/current-out devices
with dual-polarit , voltage-sensitive control ports. The require
little external support circuitr and are housed in a plastic 8-pin
single-in-line (SIP) package, thereb affording unusuall high PCB
packing densities. Combining a high-gain-bandwidth product with low
nolse, low distortion, and low input-bias current, these devices offer
performance similar to discrete or modular VCAs with the econom ot ICs.
These VCAs ma be used in VCF and VCO designs as well as in audio
mixing console applications including voltage-controlled faders,
voltage-controlled panners, voltage-controlled equalizers, and console
automation s stems.
FEATURES
--Extremel wide gain/attenuation control
--Low distortion (2150A, 2151)
--Low noise
--20Hz-20kHz response even at high gains
--“Deci-1inear" operation for logarithmic gain control
--SIP package for high densit PCB designs
--Dual gain-control ports
--Low voltage operation, to 8 volt differential
PIN CONFIGURATION
Disposal of Old Electrical & Electronic Equip ent (Applicable in the European Union and
other European countries with separate collection syste s.
This s mbol on the product or on its packaging indicates that this
product shall not be treated as household waste. Instead it shall be
handed over the applicable collection point for the rec cling of electrical
and electronic equipment. B ensuring this product is disposed of
correctl , ou will help prevent potential negative consequences for the
environment and human health, which could otherwise be caused b
inappropriate waste handling of this product. The rec cling of materials
will help to conserve natural resources. For more detailed information
about rec cling of this product, please contact our local cit office,
our household waste disposal service or the shop where ou
purchased the product.
.10 TYP
.70
.75
Dbx 215x .250
.20
1 2 3 4 5 6 7 8

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Specifications:
Threshold set -14 dBv bis +13dBv
Ratio ∞ :1
Attack Time (100% recover ) auto
Release Time (100% recover ) auto
Frequenc response (0.5dB) 10Hz-50KHz
Gain 0dB
Nominal Input Level 0dBV
Inputs/Outputs XLR
Input/Output level max. +21 dBu
Input impedance electronicall balanced 20 KOhm
Output impedance electronicall balanced. 60 Ohm
Signal to noise ratio (22Hz-22KHz, 0dB Gain) < 97dBu
THD < 0.01%
Limiting VCA
Displa limiting LED rot
Displa stereo-coupled LED gelb
Displa Power Suppl LED rot
Power Requirements 220-230VAC 50/60Hz
Dimensions (WxHxD) 19" 1HE (44x483x175 mm)
Input/Output connectors
Input balanced Output balanced Gain
2) (+) 2) (+)
3) (-) 3) (-) 1.0 = 0dB
1) shield 1) shield
------------------------------------------------------------------------
---------------------------------------------------------------------------
Input balanced Output unbalanced Gain
2) (+) 2) (+)
3) NC 3) NC 0.25 = -12dB
1) shield 1) shield
---------------------------------------------------------------------------
Input unbalanced Output unbalanced Gain
2) (+) 2) (+)
3) shield 3) NC 0.50 = -6dB
1) shield 1) shield
---------------------------------------------------------------------------
Input unbalanced Output balanced Gain
2) (+) 2) (+)
3) shield 3) (-) 1.0 = 0dB
1) shield 1) shield
---------------------------------------------------------------------------
OUT
IN
1 2
2 1
3 3

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© 2006 PAS audio
Elektroakustische Geräte Musikelektronik
D-97359 Schwarzach ℡0 9324-90086  09324-90088