OPERATING INSTRUCTIONS FOR THE CREEK P42
Contents
1. Crego oo AUDIO LIMITED OPERATING INSTRUCTIONS FOR THE CREEK P42 The function of the basic Pre amplifier The function of the P42 pre amplifier is to allow the user to control the signals from various sources Disc CD Tuner AV and Tape and vary the amplitude volume of the signal to a Power amplifier which will supply higher level signals to loudspeakers Therefore a pre amplifier should be as flexible as possible and in this case the Creek P42 has a wide range of standard functions and is designed to be configured to meet the customers requirements Future up grades are possible as it uses a system of modular construction Please read the following instructions carefully Getting Started Unpack the amplifier and keep the packing material safe for any possible future use Connect one of your source components a CD player for example into the sockets on the rear panel marked CD Input using high quality phono to phono interconnect cords The Pre amp should be connected to an A42 power amplifier via a pair of high quality phono to phono interconnect cords plugged into Output 1 Select CD with the Listen selector on the front panel The balance control should be set in the middle position and the volume control adjusted to about 9 o clock to start with Connect the power supply described below and then press the power switch on the front panel There will be a 2 5 second delay before the signal is allowed through to the power amplifi2. cation factor is determined by the impedance of the phones used Control the level required by the volume control When the Phones socket is used the active Output modules will be muted TECHNICAL SPECIFICATION TOTAL HARMONIC DISTORTION lt 0 01 20 Hz to 20 kHz FREQUENCY RESPONSE 0 Hz to 35 kHz 1dB LINE INPUTS X 4 at 47kQ TAPE LOOPS X2 OUTPUTS X 3 Maximum TAPE OUTPUTS X 2 at 1kQ GAIN From OUTPUT 2 amp 3 with LINK PCB installed X 1 0dB GAIN From OUTPUT 1 switchable x 2 6dB X 3 9dB amp X 4 12dB MAXIMUM OUTPUT VOLTAGE per Outut module 6V AT 10kQ load OUTPUT IMPEDANCE 1KQ SIGNAL TO NOISE RATIO 105dB for 600mV output SEPARATION 80 dB S at 1 kHz POWER CONSUMPTION 7W DC 15W AC mains version POWER REQUIREMENTS 35 amp 35V s DC from A42 WEIGHT PACKED 3 7 Kgs 9 Ibs SIZE 420 X 60 X 230 mm 16 5 X 2 4 X 9 CREEK AUDIO LTD 2 BELLEVUE ROAD FRIERN BARNET LONDON N11 3ER ENGLAND Tel 44 0 181 361 4133 Fax 44 0 181 361 4136 email mcreek ibm net P42inst1
3. er to prevent unwanted noises being amplified With a signal present on the input adjust the volume control and while listening to some relaxing music please read the rest of this instruction manual Power requirements The P42 is an active pre amp so therefore needs voltage to run its circuitry A custom low voltage DC power cord is supplied with the P42 If you are using the matching Creek power amplifier A42 you should plug one end of the power cord into the matching socket on the rear of each unit and screw the fixing rings tight This will enable the P42 to draw power from the A42 s power supply Should you want to run the P42 alone a separate power supply or a version of the P42 with a built in mains power supply should be used and is available to order Please consult your dealer Input Connection All the input sockets on the P42 are factory set for line level signals only and they all have the same relative sensitivity However Aux 1 input can be configured as a Phono input by plugging in a suitable Creek MM or MC Phono module To fit a Phono module it is first necessary to remove the Link PCB which is fitted to one of the two connectors Your dealer will be able to advise you about this As all the inputs have the same sensitivity it is possible to connect a source component to any of the inputs without worrying about the description of the input Tape input 1 amp 2 allows for two tape players to be connected and tape to tape copy
4. ing in both directions is possible Outputs The P42 pre amp is equipped with three pairs of output sockets instead of the usual one This is to allow for more than one power amplifier Bi amping or Tri amping to be connected to the pre amplifier at a time The standard P42 comes supplied with output one configured with an active Output Module and 2 and 3 are supplied with Link PCB s that are designed to take the place of the active module and provide a signal to the output without further amplification The internal Output Module has three different levels of gain available and can be changed by moving the slide switch if required Normally the switch is set for 6dB s X 2 The other two gain settings marked on the PCB are 9dB and 12dB X 3 and X 4 Outputs 2 and 3 are set by an internal passive Link PCB for unity gain X1 input to output P42inst1 To increase the gain on these outputs it is necessary to purchase extra active Output Module s as required one per stereo output Your dealer can advise To prevent unwanted noises the active Output module has a muting circuit that shorts the signal to ground when the pre amp is switched on and off Caution The outputs that have only Link PCB s fitted do not mute the output on switching on or off A special Bridging module is also available that will allow two power amplifiers to be connected in bridge mono mode providing much higher output power Tape output is provided on sockets Tape O
5. utput 1 and 2 and has a 1KQ impedance which is low enough to drive most machines As the outputs are electrically buffered it is not possible to load the normal signal path of the pre amplifier by using one or two low impedance tape recorders Front panel controls Listen Record Balance Phones i pe if i 2 3 4 5 A To select a source component you wish to listen to rotate selector 1 to the desired input To record from a source component rotate selector 2 to the desired input This two control facility allows you to listen to a different input from one you may want to record If you want to record from one tape recorder to another it is necessary to select the source recorder on 2 and monitor the recording on 1 Balance 3 and Volume 5 controls alter the amount of signal allowed through the pre amplifier prior to being amplified by the Output module Normally the 3 should be set with the marker in the vertical position for equal sound level from each channel If more or less sound level is required from one channel turn the control either way until the desired balance is achieved The Volume control functions as an attenuator for the signal reducing the level from the maximum possible It does not boost the signal level The Phones socket 4 is inoperative until configured by the dealer A plug in module is required to provide the amplification for headphones The Phones output has an impedance of 220Q and the amplifi
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