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PA-CP

 User Guide 

Quick Start  

 

 1

    Ensure your safety

   First read and understand the Important Safety Instructions printed earlier.  

Make sure that all your equipment is set for your local mains supply voltage and correctly grounded to 
ensure your safety.  Check that the console rear panel ON/OFF switch is in its out position (off).  Plug in 
the mains power using the power cord supplied with the console.  Do not turn anything on until you 
have checked your wiring and control settings.  Also make sure the ventilation slots on the front and 
rear are not obstructed in any way. 

 2    

Set all controls to their starting position

   Set the AMPLIFIER levels, channel  FADERS, GAINS, 

FB, AUX and FX sends, MONO OUT and 2TRK to LR level controls minimum (anti-clockwise).  Set PAN 
and all EQ controls centre.  Set all switches up or out.  Make sure the 48V switches next to the MIC 
inputs are in the up position.  Check that the recessed panel switches are up (flush with the panel).  
Use a pen or pointed object to operate these.  Starting with the controls set in this way prevents any 
unexpected surprises when you switch the system on. 

 3    

Configure the system

    Decide how you wish to use the amplifiers.  Set the AMP A and B source 

switches for stereo, mono + monitor, or 2x monitor operation.  These switches are recessed to avoid 
accidental operation once set.  A good starting point is the default stereo operation (both switches up). 

 4    

Connect the loudspeakers

   Check that the loudspeaker cables are correctly connected at the 

speaker end.  Plug your speakers into the rear panel A and B Speakon™ connectors.  Push the plugs 
into the sockets and twist them into their locked position.  Use 4 ohm or 8 ohm speakers.  Do not use 
bridged operation.  Set the rear panel CONSTANT POWER slide switch to the correct position for the 
speakers used. 

 5    

Plug in a music source

    Plug a CD player or similar test source into the ST3 inputs on the last 

stereo channel.  Check that the recessed switch below its GAIN control is flush with the panel.  This 
routes the ST3 input to the stereo channel. 

 6     

Turn the system on

   Press the ON/OFF switch to apply power to the console.  The front panel 

blue power LED lights and you should hear the speaker relays click in after one or two seconds.  You 
may also hear air movement as the internal fans start up.  The meters and several other LED indicators 
may pulse as the power rails stabilise.  This is quite normal. 

 7    

Adjust the levels and route the signal to the outputs

   Press the stereo channel PFL button.  

Adjust the ST3 GAIN control until the main meters read around ‘0’.  Release PFL and raise the channel 
and LR faders to their ‘0’ positions.  Next, gradually raise the AMP A and B LEV trim controls.  You 
should hear the music in the speakers.  With the meters averaging ‘0’ to ‘+6’ adjust the amplifier LEV 
trimmers for the loudest volume you expect from the system.   That gets the gain structure about right. 

 8    

Experiment with the system

   Use the music source to experiment with the EQ and internal 

effects.  Plug a microphone into one of the mono channels.  Make sure the channel is muted when you 
plug or unplug microphones, or when you switch 48V phantom power on or off.  To find out more 
about each control continue to read through the rest of this guide.     HAPPY MIXING ! 

 

 

Important Note about Hearing :

 

To avoid damage to your 

hearing do not operate any sound system  at  excessively  high  volume.    This 

also applies to any close-to-ear monitoring such as headphones and IEM.  
Continued exposure to high volume sound can cause frequency selective or 
wide range hearing loss. 

 

!

 

1

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Содержание PA-CP Series

Страница 1: ...USER GUIDE Publication AP4956 PA CP Series Powered Mixer...

Страница 2: ...t development Allen Heath Limited Kernick Industrial Estate Penryn Cornwall TR10 9LU UK http www allen heath com Limited One Year Warranty This product is warranted to be free from defects in material...

Страница 3: ...le away from any equipment which produces heat such as power supplies power amplifiers and heaters Environment Protect from excessive dirt dust heat and vibration when operating and storing Avoid toba...

Страница 4: ...d service agents You can also access our Web site on the Internet for full company and product information To help us provide the most efficient service please keep a record of your console serial num...

Страница 5: ...nel pan 17 Using the channel faders 17 Using PFL 17 Using the stereo channels 18 Mixing two stereo signals into the channel 18 Sending ST1 3 direct to LR 18 Using the stereo channel equaliser 19 Effec...

Страница 6: ...useable speaker power so achieving the full 500W per side into 4 ohms or 8 ohms Full protection is provided including isolating relays short circuit and over current protection output sensing clip li...

Страница 7: ...e effects External stereo effects input to sum with internal effects AB amplifiers with slave output and amplifier breakpoint inputs 2 Track input for monitor and BGM replay 2 Track recording with ana...

Страница 8: ...ADER parametric output equaliser MAX 5k 5k O O 6 O O 6 O O O O 6 O O OO 6 6 6 15 15 15 6 O O O O 15 60Hz 15 60Hz 15 15 6 15 O O 6 MIN O O 6 10 O O 3 0 10 10 12kHz O O 12kHz O O 10 20 30 30 10 20 5 0 1...

Страница 9: ...rs Do not use bridged operation Set the rear panel CONSTANT POWER slide switch to the correct position for the speakers used 5 Plug in a music source Plug a CD player or similar test source into the S...

Страница 10: ...ater in this user guide The console can be rack mounted in either of two positions as described below 4 Rack Position 1 Shows the ears fitted for top of rack mounting The controls are angled upwards a...

Страница 11: ...qualified electrician If the supply earthing is solid to start with you are less likely to experience problems Do not remove the earth connection from the console mains plug The console chassis is con...

Страница 12: ...pment such as CD players and domestic amplifiers The Speakon connector type is used to feed the output of power amplifiers to the loudspeakers It can handle high power levels and can be locked into po...

Страница 13: ...diagrams Plugging into the line input automatically overrides the mic input Do not use Y adaptors to combine stereo L and R signals such as those from a CD player into one input Use the stereo or two...

Страница 14: ...t is 3dB down at its 100Hz cut off point and reduces the frequencies below that by 12dB every octave halving of frequency Using the filter The high pass filter is an invaluable tool for cleaning up th...

Страница 15: ...he equaliser It is best to keep the adjustments made using the equaliser as small as possible Use the microphones best suited for the application and ensure they are positioned carefully for optimum p...

Страница 16: ...used to add effects such as electronically simulated reverb or echo to the mix Turning up the FX control sends a portion of the channel signal to the internal effects unit where it is processed before...

Страница 17: ...monitors and house mix Press PFL You should hear the signal in your headphones and see its level displayed on the console meters Adjust the gain control so that the meters read an average 0 with loude...

Страница 18: ...channel Use a pen or similar pointed object to press the switch if you want to route the ST1 3 signal direct to the LR mix instead of the stereo channel Mixing two stereo signals into the channel Swit...

Страница 19: ...uieten a hissy keyboard some LF and HF cut to shape a reverb return and LF to cut back low frequency hum or resonance On the other hand a small amount of HF boost can brighten up a dull recording or a...

Страница 20: ...or stereo output is plugged into the EXT FX IN sockets GAIN matches it to the operating level of the channel The external signal sums with the internal effects and is routed through the FX fader to th...

Страница 21: ...ternal effects only MUTE Press this switch to turn the FX channel signal off This affects both the internal and external effects signals The large red LED lights to warn that the channel is muted Note...

Страница 22: ...cts Start with the channel FX sends turned fully off and the FX channel fader set to its normal 0 position Make sure that FX MUTE is not selected or the MIDI bypass turned on Choose one of the 16 effe...

Страница 23: ...reo chorus for guitars and keyboards FLANGE Classic stereo flange effect ROTARY SPK Rotary speaker emulation for organs and guitars PHASER Stereo phasing effect MIDI A standard 5 pin MIDI IN socket is...

Страница 24: ...ow then you are likely to hear the residual hiss and noise that is present in all electronic circuits If it is too high then there is a danger that it will try to exceed the maximum output and therefo...

Страница 25: ...e or post LR faders It affects both the analogue and digital SPDIF outputs In its normal up position the source follows the fader movements When the switch is pressed the LR faders can be used as the...

Страница 26: ...te if a fault is sensed and have a two second switch on delay and instant power off Constant power Most amplifiers produce their maximum output into 4 ohms with considerably less into 8 ohms The uniqu...

Страница 27: ...hy the parametric output EQ You are probably familiar with the 7 or 9 band graphic EQ used on traditional powered mixers These have a similar bell shaped response but set at fixed frequency points The...

Страница 28: ...of the connected equipment to match the normal 0dBu operating level of the console Impedance balanced outputs like differential electronic balanced drivers use a 3 wire connection and provide the bene...

Страница 29: ...s the signal path after the mix stage and before the LR fader With nothing plugged in the signal is routed through the switching contact within the socket The connection is unbalanced with both the in...

Страница 30: ...nbalanced inputs Operating level is 0dBu The output follows the panel AB source selection and EQ settings It does not break the signal path to the AB amplifiers AB AMP INPUT TRS inputs to plug externa...

Страница 31: ...trange phasing effects due to frequency cancellation If you hear this then check the wiring of the amps cables and speaker connections Speaker Impedance Live sound speakers are typically 4 ohm or 8 oh...

Страница 32: ...dent with moulded mains plug supplied AC mains 100 to 240V AC 50 60Hz internally wired Consumption 1600W max peak Mains fuse rating 100 240V AC T10A 250V 20mm A H part number AL3455 Manufacturer Schur...

Страница 33: ...AKER A B Speakon pin1 speaker positive pin1 speaker negative Minimum 4 ohms Do not bridge or common the pins Insert Connections Type Level Channel LR Unbalanced TRS tip send ring return 0dBu GAIN LM H...

Страница 34: ...You can now lift the panel away and place it inverted on the work surface 3 Unscrew the 6x 6B pan head front trim fixing screws shown in the diagram Take care to avoid damage to the faders The front t...

Страница 35: ...15 60Hz 15 FB1 O O FB2 6 O O AUX O O 6 6 O O FB2 O O O O AUX 250Hz 250Hz 250Hz 250Hz 12kHz LINE 10 10 30 10 10 30 10 10 10 30 10 30 10 10 30 10 30 10 O 6 R PAN O O L PAN PK PK O O L PAN 6 O O R L PAN...

Страница 36: ...36 PA CP User Guide Check out our Internet site http www allen heath com...

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