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3. Connect right channel output of your main source to either, one of the amplifier’s right channel
unbalanced inputs (figure 3, J), or one of its right channel balanced inputs (figure 3, M). Where possible,
we recommend that you use the balanced inputs for your main sources, as this will usually produce
superior results.
Connect the left channel output of this source to the matching left channel input of the amplifier – for
example, if you have used the right channel unbalanced #2 input, you must also use the left channel
unbalanced #2 input.
Repeat this procedure with the remaining sources.
Make sure that all the plugs are pushed fully home into their sockets and that the left and right channels
for each source are not accidentally swapped over.
Try to arrange for the input cables to be separated as much as possible from where power cables will run.
This will reduce the chance of hum and other mains borne noise being picked up by the inputs.
4. Connect loudspeaker cables between the right channel high-frequency crossover input and the
amplifier’s right channel loudspeaker terminals, figure 3, R.
Ensure that that the loudspeaker’s +ve terminal is connected to the amplifier’s +ve loudspeaker terminal
and that the loudspeaker’s -ve terminal is connected to the amplifier’s -ve loudspeaker terminal.
Repeat the process for the left channel high-frequency crossover input.
These terminals will accept both banana plugs and spade terminals. Where possible we recommend that
cables fitted with spade terminals are used, as this gives a superior connection.
If using banana plugs, ensure that each plug is pushed fully home into the hole in the centre of the terminal.
If using spade terminals, loosen the loudspeaker terminal cap by turning it anti-clockwise a few turns to
allow the spade to be inserted so that it is pushed up against the centre of the terminal, then tighten the
terminal cap so that the spade is securely held.
Only tighten the terminal by hand. Never use any sort of tool, as this may result in damage to the terminal.
Arrange the loudspeaker cables so that they lie smoothly without any sharp bends or kinks. Also take care
that the cables are not stressed where they are joined to the terminations (banana plugs or spade terminals
depending on which type has been used).
4. Connect the loudspeakers’ mid-frequency crossover inputs and low-frequency crossover inputs to the
loudspeaker terminals on their associated power amplifiers. In each case, ensure that that the crossovers’
+ve terminals are connected to the amplifiers’ +ve loudspeaker terminals and that the crossovers’ -ve
terminals are connected to the amplifiers’ -ve loudspeaker terminals.
Take care not to mix up the left and right channels.
6. Connect the amplifier’s right channel preamplifier section outputs, figure 3 Q or S, to the right channel
inputs of the other power amplifiers. We recommend that you use the balanced outputs.
7. Connect the amplifier’s left channel preamplifier section outputs, to the left channel inputs of the other
power amplifiers. Use the same interface, unbalanced or balanced, as you use in step 5.
8. Confirm that the main power switches on all the amplifiers are off.
9. Connect power cables to each amplifier, ensuring that they are pushed fully home into their respective
inlets.