Bowers & Wilkins HTM4 Diamond Manual page 5

0.5m - 1m 0.5m - 1m
0.5m - 1m 0.5m - 1m
Stray Magnetic Fields
The speaker drive units create stray magnetic fields
that extend beyond the boundaries of the cabinet.
These centre speakers are therefore not suitable
for use close to old-fashioned CRT televisions and
computer monitors. We also recommend you keep
other magnetically sensitive articles (computer discs,
audio and video tapes, swipe cards and the like) at
least 0.5m from the speaker. Modern plasma, LCD
and OLED screens are not affected by magnetic fields
and CRT projectors are too far from the speaker to be
affected.
3. Connecting
All connections should be made with the audio
equipment switched off.
HTM Diamond speaker terminals accept a variety of
cable terminations: 4mm banana plugs, 6mm and
8mm (1/4 in and 5/16 in) spades, or bare wires up to
4mm (5/32 in) diameter.
Important Safety Notice
In certain countries, notably those in Europe,
the use of 4mm banana plugs is considered
a potential safety hazard, because they may
be inserted into the holes of unshuttered mains supply
sockets. In order to comply with European CENELEC
safety regulations, the 4mm holes in the ends of the
terminals are blocked by plastic pins. If you are using
the products in any country where these conditions
apply, you should ensure that any banana plugs cannot
be used in an unsafe manner by children or other
uninformed persons.
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.
There are two pairs of terminals at the back of each
speaker that enable bi-wiring (top). For conventional,
single wire connection, fit the supplied link wires to join
the like polarity terminals together.
Ensure that the positive terminals on the speaker (with
red ring) are connected to the positive output terminal
on the amplifier and the negative terminals on the
speaker (with black ring) are always connected to the
negative output terminal on the amplifier. Incorrect
connection will not result in damage but will cause poor
audio imaging. Always screw the terminal caps down
fully to prevent rattles.
Note: Bi-wiring separates the signal paths to each
section of the speaker and can improve both stereo
imaging and detail resolution. It also enables the
use of different types of cable for each frequency
band.
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