CPA3000 Preamplifier
Contents
1. CPA3000 Preamplifier CONTENTS PRODUCT DESCRIPTION INVENTORY WHEN SETTING UP SAFETY WARNINGS AC POWER CONNECTION CONNECTING YOUR EQUIPMENT INPUT CONNECTIONS OUTPUT CONNECTIONS RECORDING AV BYPASS EVERYDAY USE OF YOUR CPA3000 USING THE REMOTE CONTROL MAINTENANCE FREQUENTLY ASKED QUESTIONS TRIGGER OUTPUTS PRODUCT SPECIFICATION 10 11 12 14 16 16 17 18 CPA3000 Preamplifier Thank you for buying a Chord Electronics product Before you start to enjoy your preamplifier please take a couple of minutes to read how to connect your audio equipment and how to maximise your listening experience Product Description Using similar technology as the highly successful CPA5000 reference preamplifier the CPA3000 features a high frequency switch mode power supply and ultra low noise circuitry to give the very best noise floor performance Four pairs of balanced style XLR inputs allows for great flexibility with two additional RCA inputs for unbalanced sources A single tape loop is available for playback and also to record from any of the connected sources Front panel controls allow for easy input and output selection if required but changes can also be made via the supplied remote control Cleverly situated under the main display signal detection indicators have been replaced with highly accurate VU meters These give both clear signal detection and accurate input level Naturally via the front panel control2. these may be selected or disabled as required Two polished and nickel plated aluminium controls feature prominently to manually adjust the volume and the balance and give easy visual reference of the settings Using the precision motorised Alps potentiometers levels can also be adjusted by remote control All settings are clearly visible via the large easy to read vacuum fluorescent display and are retained even when power is removed Inventory As well as your CPA3000 and this user manual you should also have received the following items 1 System Remote Control including user manual 2 Power cord 3 Chord guarantee registration card When setting up To ensure that your CPA3000 works efficiently and safely please pay particular attention to the following issues ventilation Your CPA3000 should have at least Scm of clear space all around it to ensure a free flow of air at all times We do not recommend that you place CPA3000 directly on a carpet If you have the optional integra leg system fitted it is recommended that the power amplifiers sit above the CPA3000 AC lead and plug All Chord equipment comes supplied with the correct power lead and plug This should be used at all times if you need to fit a plug for UK Europe Connect the blue wire to the neutral terminal Connect the brown wire to the live terminal Connect the yellow green wire to the earth terminal if you need to fit a plug for US Canada Connect the white wir
3. Left channel connections are at the top right channel connections are at the bottom Note For optimum performance it is recommended that the balanced outputs are used where possible 0 0 0 1000 0 0 O P If you wish to bi amp then ask your interconnect manufacturer to provide you with a balanced or RCA cable splitter This will split the single output from the CPA3000 into two signals one for each amplifier Recording You can record an input from any of the connected audio sources to the tape output If you ve been using a tape recorder as an input source it will already be connected to the TAPE IN socket Connect the tape recorder input to the TAPE OUT RCA connection to record the selected audio source connecting to a Tape recorder to tape an audio source Use RCA connectors to the left and right pairs marked OUT TAPE i OSCSGees TAPE Note In these examples we have used a tape recorder but you can use any recording device with a phono input Minidisc CD DVD recorders and PC soundcards are all normally compatible 10 AV Bypass AV Bypass mode allows the output of an AV surround sound processor to be connected and then routed directly to the output of the CPA3000 The volume control and signal processing are bypassed so that the signal from the AV processor reaches the power amplifier exactly as if it were connected directly This has the advantage of allowing the CPA3000 to remain in an AV system t
4. Pin is earth pin 2 is positive and pin 3 is negative Unbalanced inputs use RCA phono connectors which are gold plated with teflon high performance dielectric insulators for optimum performance speakers power amplifier Amplfication Red Reference CD Player pre amplifier Switching and CD Player level control Data and DAC 64 phono stage conversion Signal CD Transport Source Basic system diagram Input Connections You can connect up to 7 items of source equipment Included is a tape loop for recording purposes All input connections are on the rear panel and are marked with the corresponding Line number Lines 1 to 4 are balanced inputs Line 5 6 and TAPE are RCA phono style inputs Left channel connections are at the top right channel connections are at the bottom 009 9 0 LOOO TU 6 TAPE It does not matter which input you choose just select the same type of connection that your source has Note Moving coil turntables without an internal amplifier will require an external phono stage amplifier such as the Chord Symphonic before connecting to the CPA3000 Output Connections You need to connect the outputs on the back of the CPA3000 to a power amplifier in order to drive your loudspeakers There is one pair of balanced XLR outputs or one pair of RCA phono outputs each of which will drive a 68 ohm load Choose either depending on the appropriate input connection on your power amplifier
5. and an anti clockwise turn of the knob will decrease the volume The volume range runs from 0 to 98 and is displayed on the CPA3000 display as you change the volume If the outputs are muted a volume change will un mute the outputs to prevent large changes in volume from damaging your loudspeakers The volume level is shown on the display as the word VOL and a two digit level as shown in the example diagram below Volume display changing the balance Use the balance knob to shift the balance between the left and right loudspeaker A clockwise turn of the knob will shift the balance to the right speaker and an anti lockwise turn of the knob will shift the balance to the left speaker Switching the VU meter Press the front panel button marked VU to switch the VU display on and off 13 Using the remote control The CPA3000 is supplied with the system remote control that is a universal controller for all Chord products televisions and DVD players Full instructions can be found in the System Remote Manual supplied but for the purposes of controlling the CPA3000 the main functions are listed on the next few pages Press the HIFI key to begin controlling the CPA3000 14 Selecting the input source Press the Line or Line keys on the centre control to cycle through the inputs For convenience you can directly access the first 5 inputs using the buttons at the bottom of the remote control Adjusting the volume Press t
6. e to the neutral terminal Connect the black wire to the live terminal Connect the green to the earth terminal earthing issues in Europe In some European countries a hum may occur if your CPA3000 is connected to mains sockets that do not have an earth If this is the case please ensure that 1 Your transport is connected via a multi way mains block which contains an earth point at each socket outlet This is to ensure that the chassis metalwork of each item is connected together 2 We recommend that an earthing method for your building be implemented 3 Use the connecting points on your Chord unit and connect to an available earth point Safety Warnings It is important that your CPA3000 is earthed at all times via its own mains lead Failure to do this may be hazardous The power supply components within the CPA3000 are designed to operate at lethal voltages and energy levels Circuit designs that embody these components conform to applicable safety requirements Precautions must be taken to prevent accidental contact with power line potentials Do not connect grounded test equipment There are no user serviceable parts within the CPA3000 Reference Preamplifier Unauthorised tampering or dismantling of this product will invalidate the warranty and could cause injury AC Power connection The AC power connector of CPA3000 is at the back of the unit Plug the female end socket of the power cord into the power connector of the tra
7. he Vol button on the centre control to increase the volume press the Vol button on the centre control to decrease the volume Adjusting the balance Press the Bal button to move the balance towards the right Press the Bal button to move the balance to the left Changing the output Press OP1 to select the main output Press BYPASS OP2 to select AV Bypass output OP1 2 has no function on the CPA3000 BYPASS Mute Press the mute key to mute the CPA3000 ure To un mute Press the mute key again or select an output or change the volume 15 Maintenance adjusting the settings Always remember to make any changes to settings with the volume set low or an instant burst of sound could damage your loudspeaker cleaning To clean finger marks and other blemishes from your amplifier spray clear glass cleaner onto a soft lint free cloth and then use the cloth to gently clean your amplifier changing the batteries in the remote control Simply push the button on the bottom of your remote control to release the battery cover Replace with four new AAA batteries as shown inside the battery compartment servicing There are no user serviceable parts in your Chord amplifier and it should only be serviced by Chord Electronics Limited or their expressly approved Service Agents Frequently asked questions why aren t any of the remote control buttons working Press the HIFI button to set up the remote control for pre a
8. mplifier functions I ve connected all the wires up but I can t hear any sound Ensure that you ve selected the correct input e g Line 1 and the correct output e g Output 1 why is there humming coming from the loudspeakers Check that you ve earthed the unit The interconnects need to be properly screened and placed away from mains cables Interference can be reduced by using balanced inputs and outputs instead of RCA phono types the sound coming from the loudspeakers is distorted Check that the speakers are connected properly It may be that the volume is turned up too loud for your speakers 16 Trigger Outputs The CPA3000 features two trigger outputs that can be used to remotely trigger other Chord equipment The external trigger should be connected via a standard 1 8 inch 3 5mm mono or stereo jack plug to the socket fitted to the rear of the unit The CPA3000 should be switched off the trigger lead inserted then the unit switched back on The connections are as follows E I dT PAN OV Ground 5V to 12V The tip of the plug is the 5V to 12V dc connection the centre and rear connection are the OV or ground connection 17 Product Specification Unbalanced Inputs Balanced Inputs Outputs AV Bypass input Intermodulation Distortion Signal to Noise Ratio Frequency Range Nominal Gain THD Channel Separation Channel Balance Input impedance Output impedance Outpu
9. nsport and the male end plug of the power cord into AC wall socket or AC extension socket The CPA3000 features a universal voltage high frequency power supply and will operate automatically from 65V to 260V AC 50 or 60Hz For optimum operation it is recommended that the CPA3000 is connected directly to the wall socket via the power cord provided Mains Switch Live Earth Neutral J AC connector and switch Powering up Press the rear panel switch marked power The display and internal illumination will light up The display will show the selected input Powering down Press the rear panel switch marked power The CPA3000 utilises soft start circuitry so the power can switched on and off as often as required There is no need to leave the CPA3000 permanently switched on Connecting your equipment Chord amplifiers are supplied with and designed to be connected using balanced inputs The interconnecting cables you use will depend on the available input and output sockets on your other equipment We have installed unbalanced inputs on all Chord equipment thus enabling you to mix Chord Electronics and other manufacturer s equipment Gian Balanced inputs carry twice the strength of signal of unbalanced inputs and are able to be fed down long lengths of cable with less deterioration of signal They are also less prone to interference than unbalanced inputs Balanced inputs have three pins and use Neutric XLR style connectors
10. o give the best possible stereo two channel playback whilst still being able to switch to AV bypass mode to allow the processor to playback multichannel film content QGOCQees OROL AV L_ op 10000 MO 0 A V O P Connect the front left and right outputs from your AV processor to the inputs on the back of the CPA3000 marked A V Connect to the power amplifier as normal via either the balanced or RCA output on the CPA3000 Press the RESET button or Bypass on the remote control to activate the bypass option Note The volume control in the CPA3000 will be bypassed so please check before switching on your AV processor that the volume is turned down When switching back please check that the volume on the CPA3000 has not inadvertently been turned up before playing any music 11 Everyday use of your CPA3000 Turning on your CPA3000 Press the power button on the back of the CPA3000 Press again to switch off Select the input source Press the INPUT button on the front panel to select the input source The options are shown in the diagram below The selected input will automatically be sent to the tape recording TAPE phono outputs Cycle of input selection options 12 Select the output Press the RESET button to select the output qe gt nr av MI IT rive 0 gt CHEREN adjusting the volume Use the volume knob to adjust the volume manually A clockwise turn of the knob will increase the volume
11. t Offset Max Input Voltage Max Output Voltage Potentiometer Performance Power Consumption Operating Voltage Dimensions Weight Line 5 Line 6 Tape 3 x pairs RCA Phono style gold plated with Teflon dielectric insulation Line 1 to Line 4 3 pin female pairs of female Neutrik XLR inputs 1 x pair of 3 pin male Neutrik XLR output with 1 x pair of gold plated RCA Phono wired asymmetrically in parallel 1 x pair female 3 pin Neutrik XLR input 100dB all inputs 93dB all inputs 2 5Hz 200kHz 3dB Fixed at x 1 1 0 002 20Hz 20KHz 10 Hz 90dB 1kHz 90dB 10kHz 90dB 20kHz 85dB 0 01dB Unbalanced 47kOhms Balanced 94kOhms 100 Ohms short circuit protected OmV both channels 10Vrms balanced 5V rms unbalanced 15V rms balanced 7 5V rms unbalanced OdB 0 5dB 20dB 0 2dB 60dB 0 24dB 13 secs for full travel SOW 85 270V AC 50 60Hz auto switching 420mm w x 355mm d x 88mm h 10Kg Chord Electronics limited The Pumphouse Farleigh Bridge Farleigh Lane East Farleigh Kent ME16 9NB Tel 44 0 1622 721444 Fax 44 0 1622 721555 Email sales chordelectronics co uk http www chordelectronics co uk
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