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Connecting the Loudspeakers to the Amplifier
In order to avoid damage of the speakers or other connected devices, please establish all
connections while the amplifier is switched off.
2 terminal groups
On the rear panel of the front speakers you find 2 groups of connection
terminals. The + and — poles of both groups are bridged. Never connect here
the output of more than one device (amplifier, TV set etc.) at the same time,
because this could damage the devices. If you should want to connect
additional speakers using these extra terminals, please consider, that this
will lower the impedance of the overall-load to less than 4 ohms. Most
amplifiers can't handle loads of less than 4 ohms and will be damaged thus.
So we strongly recommend to connect only one group of terminals!
In phase connection
For optimum sound quality it is inevitable to connect speakers and amplifier in phase. I. e.,
within the respective channel (front right / left, centre, rear right / left)
- the „+ terminal" of the amplifier must be connected to the „+ terminal" of the box, and
- the „— terminal" of the amplifier must be connect to the „— terminal" of the box.
If the speakers are out of phase (i.e. the + terminal of one amplifier channel is connected to
the – terminal of one speaker, and the – terminal of one amplifier channel is connected to
the + terminal of one speaker), the sound will be affected and the speakers may be
damaged.
If the phase is reversed, the surround image will be unstable, and the bass components will
not be clearly reproduced. Correctly connected ("in-phase") speakers will give you a stable,
well-defined surround output, with a clear, powerful bass sound. Make sure that each +
terminal of the amplifier is correctly connected to the + terminals of the appropriate speaker.
Most speaker cables have one ridged or striped part, to help you distinguish + and —. If you
need to reverse the connections of one speaker to correct the phase, make sure the amplifier
is turned off before you disconnect the speaker. Make sure to connect all speaker boxes with
regard to their position to the correct surround channel output of the amplifier.
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