Creek Audio 4240 - Manual

A U D I O L I M I T E D
OPERATING INSTRUCTIONS FOR THE CREEK 4240
( Line and Phono Input Version )
Thank you for purchasing the 4240 amplifier. You are now in possession of a State of the Art Integrated
Amplifier. The functions and operation of the 4240 are extremely simple. However, the following notes are
provided to explain all aspects of its design and use.
MAINS CONNECTION
When unpacking the amplifier please keep the packing material in a safe place for possible future use. In
the pack there is a separate mains cable suitable for connecting to the mains supply in the country of use.
The IEC socket end of the cable should be firmly inserted into the connector on the rear panel marked
"Mains Input". Remember, do not overload the mains wall socket with too many plugs or adapters. The high
quality performance of the amplifier will be impaired if the electrical supply to it is in poor condition. If in
doubt, consult a qualified electrician or your dealer. The "Mains Input" connection is also fitted with a fuse,
specifically suited to the supply voltage of the country of use. The correct value is clearly marked on the rear
panel next to the Mains Input. Should it be necessary to replace the fuse, ensure that you use the same
type as specified on the rear panel. i.e. 5 x 20mm cartridge type 1·6A surge resisting for 220-240V 50Hz
AC, 3·15A surge resisting for 110-120V 60Hz AC or a 4A surge resisting for 100V (Japan)
LOUDSPEAKER CONNECTIONS
The loudspeakers should be connected using a suitable pair of cables designed specifically for audio use.
These should be fitted with dedicated 4mm plugs which are preferably soldered onto the cables. Please
consult your dealer for advice if you are unsure. It is very important to connect the loudspeakers to the
loudspeaker sockets in the correct phase. That is to say that the positive and negative sides of the cable are
correctly polarised. If one channel is not connected in the same fashion as the other, a severe loss of bass
performance and a spreading of the stereo image will result. The sockets are designated for direct and
switched connections. The switched sockets provide for the output to the loudspeakers to be interrupted
when headphones are plugged into the socket on the front panel. The direct sockets, however, will provide
the best sound quality. It is recommended not to use loudspeakers of less than 4
Ω resistance or two pairs of
8 Ω or lower speakers running from the amplifier at one time. However, bi-wiring of one pair of speakers,
using the four sockets, can improve the sound of your system. N.B. It is very important not to short the
loudspeaker cables together when the other ends are still connected to the amplifier otherwise
permanent damage can result. If it is necessary to move or change the location of your
loudspeakers, make sure that you switch off the amplifier from the mains first.
INPUT CONNECTION
All the line inputs on the amplifier are in the region of 350mV's sensitivity. The tape input is, in conjunction
with the tape output, in a loop enabling you to record anything you can hear, or in other words, 'Monitor'
recordings without interrupting the signal. A button on the front panel, marked "Tape Monitor", should be in
the out position for normal use and pressed in for monitoring. The rotary selector switch on the left hand
side of the amplifier is used to select any of the desired inputs. As all the line input levels are all the same, it
is unnecessary to use the precise inputs as designated. You may, for example, plug a CD player into the
tuner input and obtain exactly the same result or performance as the dedicated CD input. The first input is
selected on this model for use as an MM phono Disc amplifier. If you no longer wish to use an analogue
disc player, it is possible to replace the internal plug-in phono pcb with a linking connector or another plug-in
module, which will convert it to a line input or could be used to increase the sensitivity of the input for line
level use. Also available is a low noise MC phono amplifier plug-in pcb.