Single Wiring; Bi-Wiring; Bi-Amping - Arcam P777 Handbook

Single wiring

If each speaker has more than one pair of connecting terminals, use the terminals labelled
or 'Low Frequency' for each speaker.
lF
Connect the positive terminal of the right speaker connection on the amplifier (coloured
red and labelled ) to the positive terminal of your right speaker. Similarly, connect the
+R
negative terminal of the amplifier (coloured black and labelled with
terminal of your speaker. Repeat the process for the left speaker, using the amplifier
terminals labelled and .
+l l–
If your speakers support bi-wiring, then there is a strip of conductive metal on the
speakers connecting the low-frequency terminals to those for the higher-frequencies; this
mUST NOT Be RemOVeD in a single-wired system.

bi-wiring

Bi-wiring is performed in the same way as single wiring except that, for each speaker, a
pair of cables are used to connect the amplifier to each speaker.
Follow the instructions given for single wiring; then perform the same actions, this time
connecting the upper set of speaker terminals on your amplifier to the terminals labelled
or 'High Frequency' for each speaker. Please refer to the illustration.
HF
Speakers that support bi-wiring have a strip of metal on the speakers connecting the low-
frequency terminals to those for the higher-frequencies; this mUST Be RemOVeD in a
bi-wired system.

bi-amping

Bi-amping requires the use of two amplifier channels per speaker. Using this method will
prevent you from using seven surround speakers.
Connect two channels of the P777 with a phono cable between the
one channel to the channel of another. One channel should then be connected to
AudIo IN
the speakers as described for single wiring, with the exception that this channel should be
connected to the speaker terminals labelled or 'High Frequency' . The second channel must
HF
then be connected to the or 'Low Frequency' terminals, as in the diagram.
lF
Note that the strip of metal on the speakers connecting the lower terminals to the upper
terminals mUST Be RemOVeD. Failure to do so will result in damage to both amplifiers,
which will not normally be covered under warranty.
Arcam recommends that the phono connections are use for bi-amping. If you prefer to use the
XLR connectors, use a Y-lead with one female XLR to two male XLRs, so that two amplifier
channels may be fed from a single source. Contact your dealer if you need assistance.
) to the negative
R–
socket on
AudIo ouT
e-7
HF
...etc...
LF
HF
LF
Arcam P777
Ð + Ð + Ð + Ð + Ð +
IN OUT IN OUT IN OUT IN OUT IN OUT
SBR SR R C L
Outputs from multichannel pre-amp (e.g AV888)
HF
LF
Arcam P777
Ð +
IN OUT
HF
LF
Ð + Ð +
IN OUT IN OUT
Arcam P777
HF
LF
HF
LF
Ð + Ð +
Single wiring speaker
IN OUT IN OUT
connections
SL SBL
Bi-wiring using one amplifier
channel per speaker
Bi-amping using two amplifier
channels per speaker