Bowers & Wilkins 685 S2 Instruction Manual page 7

3. Connections
All connections should be made with the audio equipment
switched off.
There are 2 linked pairs of terminals on the back of the speaker.
For conventional connection (above left), the terminal links should
remain in place (as delivered) and just one pair of terminals
connected to the amplifier. For bi-wire connection (above right),
the terminal links should be removed and each pair of terminals
connected to the amplifier independently. Bi-wiring can improve
the resolution of low-level detail.
Ensure that the positive terminals on the speaker (marked + and
coloured red) are connected to the positive output terminal on the
amplifier and the negative terminals on the speaker (marked – and
coloured black) are connected to the negative output terminal on
the amplifier. Incorrect connection can result in poor imaging and
loss of bass.
Ask your dealer for advice when selecting speaker cable. Keep
its total impedance below the maximum recommended in the
speaker specification and use a low inductance cable to avoid
attenuation of high frequencies.
7