Connecting Speakers; Connecting Subwoofers - Arcam AV860 Manuel

Connecting speakers

To connect each of the speakers, unscrew the
corresponding terminals on the back of the Receiver,
insert the speaker wires through the hole in each post
and screw the terminals back up. Make sure that the
red (positive/ + ) terminal of the speaker is connected to
the red (positive/ ) terminal on the back panel, and the
+
black (negative/ – ) terminal of the speaker is connected
to the black (negative/ ) terminal on the back panel.
–
SPEAKER OUTPUTS
ZONE 2 R 8Ω LOAD IMPEDANCE RECOMMENDED ZONE 2 L
HEIGHT 1 R HEIGHT 1 L
SBR SR FR C FL SL SBL
SBR SR FR C FL SL SBL
HEIGHT 1 R HEIGHT1 L
ZONE 2 R ZONE 2 L
It is important that no stray strands of wire from these
connections are allowed to touch another cable or the
product casing. Failure to ensure this can cause a short
circuit and damage your Receiver.
Do not over-tighten the loudspeaker terminals, or use a
wrench, pliers, etc., as this could damage the terminals
and this would not be covered under the product's
warranty.
Speaker cables
The speakers should be connected to the amplifier using
good-quality, high-purity, low impedance copper cables.
Cheap speaker cables should be avoided – they are a
false economy and can significantly degrade the sound
quality.
The cable runs to the speakers should be as short as
practicable. Connections to the speaker terminals
should always be finger tight, whether using bare wires
or spade connectors.
Bi-amping the Front Left & Front Right speakers
Bi-amping is the use of two amplifier channels per speaker. Bi-amping can
provide better sound quality than conventional single wiring. If you do not have
Surround Back speakers (i.e. you have a 5.1 surround system, not a 7.1 system)
then you can use the spare Surround Back speaker outputs to bi-amplify the
front left and right speakers, if your speakers support bi-amping. The spare
channels can alternatively be used to power stereo speakers in another room
(Zone 2).
Speakers that support bi-amping have two sets of +/- terminals per speaker,
usually linked together by metal strips. These metal strips MUST be removed
when bi-amping; failure to remove them will result in damage to the amplifier
that is not covered under warranty.
To bi-amp the front left and right speakers, remove the metal strips from
the speaker terminals. Connect the woofer or LF terminals to the FL and FR
terminals on the Receiver. Connect the tweeter or HF terminals to the SBL and
SBR terminals on the Receiver. Finally, navigate to the Setup Menu 'Spkr Types'
~ 50 – 60 H
115
and set the 'Use Channels 6+7 for' menu option to 'BiAmp L+R'; see page E-26.
Link MUST Link MUST
be removed
be removed

Connecting subwoofers

PREAMP OUT
FL SL C
FR SR SUB
The Receiver also allows up to two active subwoofer to be connected to the
SUB outputs. Refer to your subwoofer handbook for the correct setting up and
connection procedure for your particular subwoofer(s).
SBL
SBR FR FL
ANAL
HEIGHT 1 HEIGHT 2
SBL
L
R
SUB 2
PREAMP OUT
SBR
PREAMP OUT
FL SL C SBL
E-16
Using external power amplifiers
The internal power amplifier of the Receiver (SR250
L, R, Sub only) can be supplemented or replaced with
external power amplification, such as the Arcam P49
(recommended gain 31dB). Connect the
sockets to your power amplifier inputs:
ANALOGUE AUDIO
HEIGHT 1 HEIGHT 2
L
R
SUB 2
PREAMP OUT
PREAMP OUT
FL SL C SBL
FR SR SUB SBR
FL, FR
Connect these to the equivalent Right and Left front
channels of your power amplifier. For the SR250, only
this and the sub outputs are available
C
Connect these to the Centre front channel of your
power amplifier.
SUB
Subwoofer outputs. Connect this to the input of your
Link MUST
Link MUST
active subwoofer(s), if present. For the SR250, only this
be removed
be removed
and the FL, FLR outputs are available
SR, SL
Surround Right and Surround Left outputs. Connect
these to the Surround Right and Left power amplifier
inputs.
SBR, SBL
Surround Back Right and Surround Back Left outputs.
Connect these to the Surround Back Right and
Surround Back Left power amplifier inputs.
Height 1, Height 2
Height 1 and Height 2. Connect these to the Height 1
and/or Height 2 power amplifier inputs.
All preamplifier analogue outputs are buffered, have
a low output impedance and are at line level. They are
able to drive long cables or several inputs in parallel if
required.
PREAMP OUT