AUDAC CPR12 Installation and operating instructions

PROFESSIONAL AUDIO EQUIPMENT
CPR12 Preamplifier
User Manual & Insallaion Guide
Preamplifier
CPR12
AUDAC

A U D A C P R O F E S S I O N A L A U D I O E Q U I P M E N T
User Manual & Installation Guide
 AUDAC
h p://www.audac.eu
[e-mail]

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INTRODUCTION ............................................................................................................................................................................................................................3
ENVIRONMENT .............................................................................................................................................................................................................................4
SAFETY REQUIREMENTS..........................................................................................................................................................................................................5
CAUTION – SERVICING ............................................................................................................................................................................................................5
OVERVIEW FRONT AND REAR PANEL OF THE CPR12..................................................................................................................................................6
FRONT ...........................................................................................................................................................................................................................................6
REAR ..............................................................................................................................................................................................................................................6
DETAILS FRONT AND REAR PANEL OF THE CPR12.......................................................................................................................................................7
FRONT PANEL .............................................................................................................................................................................................................................7
REAR PANEL................................................................................................................................................................................................................................9
CONNECTIONS ............................................................................................................................................................................................................................11
CONNECTOR AND CABLE CONFIGURATION ..................................................................................................................................................................12
BLOCK DIAGRAM ......................................................................................................................................................................................................................14
ADDITIONAL INFORMATION CPR12 ..................................................................................................................................................................................15
TECHNICAL SPECIFICATIONS..............................................................................................................................................................................................15
PERSONAL NOTES .....................................................................................................................................................................................................................16
Index

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Introduction
This section briefly describes the possibilities of the CPR12 Preamplifier.
he CPR12 Preamplifier was developed as an easy o use, flexible solu ion for
mul ifunc ional use.
During he developmen of he CPR12, he AUDAC-engineers wan ed o achieve four goals:
- Delivering a flexible audio solu ion o con rol mul iple func ions
- Easy o use
- Excellen sound quali y
- Modern and advanced design
The CPR12 can be used in commercial applica ions such as res auran s, ho els, shops, warehouses,
professional offices, public buildings, …
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nvironment
Do not place this unit in an enclosed envi onment such as a bookshelf o closet. Ensu e
that the e is adequate ventilation to cool the unit. Do not block the ventilation openings.
Do not place the unit in envi onments which contain high levels of dust, heat, moistu e o
vib ation.
Do not use the unit nea wate o othe liquids. Make su e no wate o othe liquids can be
spilled, d ipped o splashed on the unit.
This unit was developed fo indoo use only. Do not use it outdoo s.
Do not place objects on top of the unit.
Place the unit on a stable base.
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Safety Requirements
Always handle the unit with ca e.
Only use a g ounded socket outlet and a powe co d with g ounding plug to plug in the
unit.
This unit is not a toy. It should not be ope ated by child en.
Do not stick objects th ough the openings of the CPR12.
Do not open the unit ( isk fo elect ical shock).
CAUTION – S RVICING
This uni con ains no user serviceable par s. Refer all servicing o qualified
service personnel. Do no perform any servicing unless you are qualified o do
so.
Note
This produc conforms o he following European S andards: EN 50081-1: 1992, EN
50082-1: 1992, EN 60065: 1994
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Overview front and rear panel of the CPR12
FRONT PAN L
R AR PAN L
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Details
DetailsDetails
Details front and rear panel of the CPR12
FRONT PAN L
1. T im Cont ols
These con rols allow variable inpu level. They have 44dB adjus able ranges - 60dB o -16dB
for microphone level and -30dB o +14dB for line level.
2. Signal Indicato s
These indica ors show he presen inpu signal on each inpu channel.
3. Peak Indicato s
These indica ors warn agains clipping shor ly on each inpu channel. When he peak indica or
is flickering, you should adjus he Trim Con rols o achieve he bes resul .
4. Input Channel Fade
These faders allow you o adjus he level for each inpu channel.
5. Input Channel EQ Cont ols
6 MIC inpu channels have 3 bands equalizers which are adjus able over a wide range.
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6. PFL Switches
This swi ch allows you o moni or he pre-fader signal of he inpu channel hrough he
moni or speaker.
7. Output Channel Selecto s
These selec ors allow each inpu signal o be rou ed o he selec ed ou pu channel.
8. Output Channel EQ Cont ols
Ou pu channels have 2 bands equalizers which are adjus able over a wide range.
9. Output Channel Fade
These faders allow level adjus men for main ou pu channels.
10. Clip Indicato s
These indica ors warn agains clipping shor ly on each ou pu channel. When he peak
indica or is flickering, you should adjus he Trim Con rols o achieve he bes resul .
11. Output Level Mete s
These indica ors show he ou pu signal level.
12. AFL Switches
This swi ch allows you o moni or he selec ed main ou pu signal hrough o he ou pu
channel hrough he moni or speaker.
13. Monito Level Cont ol
This con rol allows you adjus he signal level of he moni or speaker.
14. Powe Indicato
This indica or shows he power on/off s a us.
15. Powe Switch
The device will be supplied wi h power when his swi ch is pressed and locked.

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R AR PAN L
1. DC 24V Input and Link Output
The device will be supplied by he DC 24V inpu erminal and will supply power o o her
devices by he link ou pu erminal.
2. AC Inlet
This AC inle (230V, 50Hz) allows you o replace he fuse convenien ly. Please check he
value of he fuse before replacemen .
3. Channel Inse t
These inser jacks allow you o connec ex ernal effec ors like compressors, limi ers and noise
fil ers. Use he proper inser cable.
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4. Sub Output
The sub amplifier will be connec ed o his ou pu erminal. The ou pu signal is a fixed level
signal.
5. Main Output
The main amplifier will be connec ed o his ou pu erminal.
6. P io ity Input
All inpu signals will be mu ed au oma ically by he priori y inpu signal. This erminal will be
used for evacua ion announcemen .
7. Reco d Output
This erminal allows recording wi h a recording device.
8. Line Inputs 6,3 mm jack ste eo
These line inpu s can be connec ed o line level equipmen s. This device allows connec ing up o
10 balanced and unbalanced inpu s.
9. Line Inputs 2xRCA/Cinch
These line inpu s can be connec ed o line level equipmen s. This device allows
connec ing up o 4 s ereo line inpu s.
10. Mic ophone Inputs
This device allows you o connec 6 balanced microphone inpu s wi h an accep able wide
impedance range from 50ohm o 600ohm.
11. P io ity Switches
These swi ches define he priori y of MIC channel 1 and 2. All o her inpu signals excep
he priori y inpu channel are mu ed when his func ion is ac iva ed and here is a signal on
one of he wo channels. MIC channel 1 and 2 have he same priori y grade as he priori y
inpu channel if hese swi ches are pressed.
12. Phantom Powe Switches
This device supplies DC+15V phan om power o use a condenser microphone wi h MIC1
and 2 channels.

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Connections
AUDAC produc s are wired o reflec accep ed wiring prac ices used hroughou he world.
Balanced XLR connec ors are wired as described:
Pin #1 Shield
Pin #2 Posi ive
Pine #3 Nega ive
Balanced 1/4” TRS connec ors are wired as described:
Tip is Posi ive
Ring is Nega ive
Sleeve is Shield
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CONN CTOR AND CABL CONFIGURATION
Connec or and cable configura ions recommended for use wi h he CPR-series. These cables
are based on he use of auxiliary equipmen ha is isola ed from he AC power mains.

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Block diagram
CPR12 BLOCK DIAGRAM

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Additional information CPR12
T CHNICAL SP CIFICATIONS
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Balan ed Master Output 0dBm
Unbalan ed Sub Output 0dBm
Rated Output Voltage
Unbalan ed Re output -10dBm
Balan ed Mi rophone
hannels -60dBm
Balan ed Line 1-6 hannels -30dBm
Unbalan ed Line 7-10
hannels -30dBm
Unbalan ed Priority 0dBm
Input sensitivity for rated output
at maximum gain
Insert 0dBm
Mi in to Master Output
Line in to Master Output
Mi in to Sub Output
Total Harmoni Distortion
(T.H.D) at 1KHz Rated output
Mi in to Re Output
Less than 0.2%
Frequen y Response Rated Output 20Hz~20KHz ±3dB
HIGH (12.5KHz) ±12dB
MID(2.5KHz) ±12dB Input Channel EQ
LOW(80Hz) ±12dB
HIGH (12.5KHz) ±12dB
Output Channel EQ LOW(80Hz) ±12dB
Residual Noise less than -90dB
Crosstalk At 1KHz less than -70dB
Phantom Power (balan ed) +15V DC
Power Sour e
AC 100~120V / 50~60Hz AC
220~240V / 50~60Hz DC 24V
Power Consumption 22Watts
Weight 5.3 kg
General
Dimensions 482(W)x325(D)x88(H)

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Personal notes