Creek 4240 owners manual

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VOLUME LEVEL The volume control, situated on the right hand side of the front panel, is used to alter the relative level of the sound output from the amplifier. It is important to rea lise that the volume control only acts to reduce, or attenuate, the incoming signal to the power amplifier stage. The maximum pow er of the amplifier is available only if the level of signal available from the line level equipm ent is sufficient to drive it to clipping; this will be in the region of 350mV's. The volume control is necessary to balance the level from one piece of equipment to another. It does not increase the power of the amplif ier and if it is found necessary to have the volume control set to a position which is considered to be hi gh, before the desired level of volume is obtained, it does not necessarily mean that the amplif ier is having to work "flat-out". Consult your dealer if you feel you need more advice. BALANCE CONTROL The smaller control knob in the middle of the panel allows you to adjust the relative position of the centre of the sound stage. Normally it should be set and left in the middle position. OPERATING THE 4240 Make sure that the unit is on a suitable table or Hi -Fi equipment cabinet. It is important to allow adequate ventilation to the heatsink, in the centre of the unit. Av oid obstruction of the ventilation slots on the top cover. It may be necessary to place the amplifier on the top of other equipment to allow for this. Always have the volume control set at minimum ( counter-clockwise ) when switching on and off, to avoid thumps or sudden loud noises. Select the desired input on the rotary selector and switch on the amplifier with the push button marked Power on the right hand side of the front panel. Adjust the volume gently and settle down to listen. Your 4240 amplifier is designed to give you years of reliabl e use. However, it is necessary to take care of your possession, so never overheat it or short out the speaker connec tions. If an adjustment is needed to the plug-in MM circuitry, it is always advisable to return it to the supplying dealer for his expert help. If you are unfortunate enough to need service work to be carried out on your amplifier, it should be returned to your dealer in the original packing material if possible. SPECIFICATION POWER OUTPUT ONE CHANNEL 45 Watts into 8 Ω POWER OUTPUT BOTH CHANNELS 40 Watts into 8 Ω Not Recommended For Use Into More Than Two Pairs Of 8 Ω loudspeakers TOTAL HARMONIC DISTORTION >0·01% 20 Hz to 10 kHz FREQUENCY RESPONSE 3 Hz to 25 kHz -1 dB POWER AMP RISE TIME +40 -30V's per µS INPUT SENSITIVITY 380 mV's Line level inputs INPUT SENSITIVITY ON MM PHONO 2.5mV's INPUT IMPEDENCE ON MM PHONO 47k Ω SIGNAL TO NOISE RATIO -105 dB's SEPARATION -80 dB's at 1 kHz POWER CONSUMPTION 40 W at idle '' '' '' 200 W full power 10% THD WEIGHT 4·5 Kgs, 10 lbs SIZE 420 x 60 x 230 mm, 16·5 x 2·4 x 9'' ( MAINS VOLTAGE AND FREQUENCY IS INTERNALLY SET FOR THE COUNTRY OF USE ) CREEK Audio Ltd 2 Bellevue Road Friern Barnet London N11 3ER England