Arcam AVR250 Bi-wiringand bi-ampingloudspeakers, 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 AVR250 while it is switched on or connected to the mains supply.

3.After connecting the loudspeakers, but before switching on the AVR250, please check all connections thoroughly, making sure bare wires or cables are not touching the AVR250 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

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.

AC

INLET

OUT

SAT 230

				SPEAKER
GROUND	GROUND			IMPEDANCE
	LIFT
RS		LS	RSB	LSB

How to bi-wire loudspeakers

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

NOTE: 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.

Bi-amping your system		+	–
			HF
Note:
In order to bi-amplify your speakers, your speakers will need to be bi-wirable (have positive and			LF
		+	–
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 AVR250 may result which is not covered		Bi-wiring using the
under warranty.
	AVR250 (only one speaker
	-amping using the AVR250	is shown, for clarity)
AC	channels 6 and 7 of your system are not in use (i.e.,
	u have a system comprised of a maximum of five speakers,
INLET
OUT	cluding the subwoofer), these spare amplification channels may
SAT	used to bi-amplify the front left and right speakers of your
	stem.
HIGH QUALITY VIDEO IN
	230
	llow these steps:

Remove the terminal links on the rear of your loudspeakers.

		SPEAKER	: This step is essential or damage
GROUND	GROUND	IMPEDANCE
	LIFT

RS232 CONTROL

FR	FL	CEN	RS	LS	RSB LSB
					Connect the cables as shown in the diagram below, ensuring
					rrect polarity at all times.
					Ensure that the USE CHANNELS 6+7 for setting in Basic menu 6
					X Settings” is set to BIAMP L+R. (See page 13 for details of how
					do this.)

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+

HF

LF

+

–+

–+

HF

LF

–

–

Bi-amping using the surround back channels of the AVR250 (only the front left and right speakers are shown, for clarity)