Arcam AVR280 manual Bi-wiring and bi-amping loudspeakers, Before you start important information

Bi-wiring and bi-amping loudspeakers

Bi-wiring improves the sound of your system as it divides the high and low frequency signal currents into separate speaker cables. The performance of your system can be further enhanced over that achieved with bi-wiring by extending the principle one stage further to include separate amplification for the low

and high frequency drive units in each loudspeaker enclosure. This is called ‘bi-amping’.

Before you start – important information!

1.Ensure that the volume control is set to minimum before starting these procedures.

2.Do not make any connections to your AVR280 while it is switched on or connected to the mains supply.

3.After connecting the loudspeakers, but before switching on the AVR280, please check all connections thoroughly, making sure bare wires or cables are not touching the AVR280 in the wrong places (which could cause short circuits) and that you have connected positive (+) to positive and negative (–) to negative.

Bi-wiring your loudspeakers

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Bi-wiring avoids signal distortions arising from the high and low frequency currents interacting with one another within a single cable, as occurs in conventionally wired systems.

You will need:

Speakers – with four input terminals each: the terminals will be marked HF (High Frequency

+and –) and LF (Low Frequency + and –). Loudspeaker cables – two pairs of cables per loudspeaker.

How to bi-wire loudspeakers

1.Remove the terminal links on the rear of your loudspeakers.

Note that If you do not remove the shorting links from the speaker terminals, the speakers will still be single-wired!

2.Connect the cables as shown in the diagram, ensuring correct polarity at all times.

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Bi-wiring using the

AVR280 (only one speaker

is shown, for clarity)

Bi-amping your system

Notes:

<In order to bi-amplify your speakers, your speakers will need to be bi-wirable (have positive and negative terminals for both high frequency (HF) and low frequency (LF) information). If your speakers are bi-wirable, ensure that the links between the HF and LF terminals are removed.

WARNING: This step is essential or damage to your AVR280 may result which is not covered under warranty.

<If you wish to bi-amplify speakers using external power amplifiers, you must use amplifiers with the same gain as the AVR280 (31dB), otherwise the bass and the treble will become unbalanced. Please contact your dealer if you require more information on bi-amping your speakers.

Bi-amping using the AVR280

If channels 6 and 7 of your system are not in use (i.e., you have a system comprised of a maximum of five speakers, excluding the subwoofer), these spare amplification channels may be used to bi-amplify the front left and right speakers of your system.

Follow these steps:

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1.Remove the terminal links on the rear of your loudspeakers.

WARNING: This step is essential or damage to your AVR280 may result which is not covered under warranty.

2.Connect the cables as shown in the diagram below, ensuring correct polarity at all times.

3.Ensure that the Use channels 6+7 for setting in Basic menu 6 ‘EX Settings’ is set to BiAmp L+R. (See page 13 for details of how to do this.)

	Right		Left
	speaker		speaker
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Bi-amping using the surround back channels of the AVR280 (only the front left and right speakers are shown, for clarity)

AVR280

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