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 safty and operation instructions should be read before the appliance is operated.
2. The safty 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,
laundry 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 may block the ventilation openings: or placed in a built-in
installation, such as bookcase or cabinet that may impede the flow of air through the
ventilation openings.
7. The appliance should be situated away from heat sources such as radiators, heat
registers, stoves or other appliances, including amplifiers, that produce heat.
8. Connect the equipment to a power supply of the correct voltage, using only the cables
recommended by the manufacturer, as specified in the operating instructions and/or
shown on the connection side of the equipment.
9. The appliance may only be connected to a legally approved earthed mains power
supply.
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 supply.
11. Ensure that foreign objects and liquids cannot get into the appliance.
12. The appliance should be cleaned only as recommended by 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 by qualified service personnel when:
* the power supply 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 normally 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 beyond 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 ELECT RICAL SH OCK
DO NOT OPEN
CAUTION
This symbol, alerts you to the presence of
uninsulated dangerous voltage inside the
enclosure, voltage that may be sufficient
to constitute a risk of shock.
This symbol, alerts you to
important operating and
maintenance instructions in
the accompanying literature.
Read the manual
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TABLE OF CONTENT
Safety Instructions………………… 2
Warranty………………………………… 4
Changes…………………………………. 4
Foreword…………………………………. 5
Start/Settings………………………….. 5
Connections…………………………… 5
Threshold set…………………………. 6
Stereo-Coupled Switch…………... 6
VCA………………………………………… 7
Recycling……………………………….. 7
Specifications………………………… 8
Appendix………………………………… 9
PROFESSIONAL PRODUCTS
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WARRANTY
WARRANTYWARRANTY
WARRANTY
PAS audio warrants all new equipment 5 years warranty from date of purchase. Warranty is
proof of the original invoice document. Within this period all equipment, with fully detectable
defects without charge for materials and labor will be repaired by us.
Warranty exclusion
Excluded from warranty-claims is unprofessional actions of Customer or any third party on the
device. The customer has to prove the assertion of warranty-claims, that the defects were not
caused by circumstances that lie in his danger zone, such as incorrect operation, incorrect
installation, incorrect line voltage, or improper interference.
Also excluded from warranty-claims are devices without serial number, made with deliberately
defaced or altered serial number and modified equipment, if any changes were not made by
PAS audio or authorized persons.
Warranty applies only to the device itself, not due to error caused by 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
©
by PAS audio
Due to the high quality of the components and materials we provide on this device
Due to the high quality of the components and materials we provide on this deviceDue to the high quality of the components and materials we provide on this device
Due to the high quality of the components and materials we provide on this device
5 year warranty
5 year warranty5 year warranty
5 year warranty
detailed
detaileddetailed
detailed information on our warranty terms, please see page 4 of this manual. (see above)
information on our warranty terms, please see page 4 of this manual. (see above) information on our warranty terms, please see page 4 of this manual. (see above)
information on our warranty terms, please see page 4 of this manual. (see above)
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FOREWORD
Congratulations! In purchasing our Limiter DS 22S you have acquired a limiter whose small
size belies its incredible versatility and superlative audio performance. Its excellent dynamic
range, the extremely 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 manual carefully!
START / SETTINGS
XLR Input/Output connectors
The DS 22S Controller`s Inputs/Outputs are electronically balanced. (for connection help take a
look at page 8)
Internal direct 5-pin connectors (option)
There is also the possibility that the unit not connected to the rear panel XLR connectors with
power amplifiers / mixers, etc., but inside the device balanced cables directly 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 only possible through the expansion and opening the l
top cover. (Demanded by 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.
INTERN
bal.in/ou t
PIN 1 SHIELD
PIN 2 > +
PIN 3 > -
ELECT RON ICALLY
BALA NCED
INPUT S/OU TPUTS
INPUT IMP ED.
20 KO HM
OUT OUTIN IN
CH.A CH.B
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Threshold adjustment.
At the front panel is the display 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 necessary 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
capacity 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 factory 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 independently. 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 always the same. A yellow LED at the front panel lights when the DS
22S is switched in stereo-coupled mode.
NOTE
NOTENOTE
NOTE!!!!
The limiter should work only in the upper dynamic range. I.e. to protect the connected speakers
are used. The starting point of the DS 22 is then set correctly when the LED lights up at peaks.
Permanent illumination of the display 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-polarity, voltage-sensitive control ports. They require
little external support circuitry and are housed in a plastic 8-pin
single-in-line (SIP) package, thereby affording unusually 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 economy ot ICs.
These VCAs may 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 systems.
FEATURES
--Extremely 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 density PCB designs
--Dual gain-control ports
--Low voltage operation, to 8 volt differential
PIN CONFIGURATION
Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and
other European countries with separate collection systems.
This symbol 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 recycling of electrical
and electronic equipment. By ensuring this product is disposed of
correctly, you will help prevent potential negative consequences for the
environment and human health, which could otherwise be caused by
inappropriate waste handling of this product. The recycling of materials
will help to conserve natural resources. For more detailed information
about recycling of this product, please contact your local city office,
your household waste disposal service or the shop where you
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% recovery) auto
Release Time (100% recovery) auto
Frequency response (0.5dB) 10Hz-50KHz
Gain 0dB
Nominal Input Level 0dBV
Inputs/Outputs XLR
Input/Output level max. +21 dBu
Input impedance electronically balanced 20 KOhm
Output impedance electronically balanced. 60 Ohm
Signal to noise ratio (22Hz-22KHz, 0dB Gain) < 97dBu
THD < 0.01%
Limiting VCA
Display limiting LED rot
Display stereo-coupled LED gelb
Display Power Supply 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
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