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the separated woofer and tweeter terminals ("bi-wiring") or separate amplifiers
("bi-amping"). With Bi-Amp hookup you must use either identical amplifiers or
amplifiers adjusted to have the same voltage gain. Consult your PSB dealer
for further information. (Illustrations are for one speaker hookup only). With
single cable inputs, the jumper straps must be in place and both sets of
terminals tightened firmly.
SPEAKER
+
SPEAKER
Amp #1
Output
--
Mid/High
+
Woofer
Amp #2
"
Output
- (Labeled)
'---'f-----I
+
Woofer
-- (Labeled)
r - - - I +
Mid/High
I
J
I ~ L . . - ~ _ ~ _ i ~ _ + - - ,
u...
_output
Bi-Wire Hookup
Bi-Amp Hookup
Bi-wire and Bi-amp Wiring between Speakers and Amplifier
IV. PROTECTING YOUR SPEAKERS
A. For full, year-after-year enjoyment from your speakers, you should respect
their limits. They will produce room-filling volume in average-sized
rooms-and handle peak momentary levels at those volumes without audible
strain. But avoid louder-than-life playback of music or movies, especially
in large rooms. Even the most "bulletproof" speakers can be damaged by
excessive volume levels, especially for long periods.
B. When listening to music or movies at very loud volume, you shouldn't
turn up bass or treble all the way or close thereto. This sends
tremendously increased, disproportionate power into the speakers, and may
well damage them. Some loudness compensation ("Loudness") controls,
which boost both bass and treble, can also be troublesome at high volume.
They are intended only for low-volume listening.
C. Finally, you should be aware that when amplifiers and receivers are
pushed to their limits to produce excessive volume levels, they are
driven into "clipping" and can do severe damage-especially to
tweeters. Often, the damage is done by underpowered amplifiers, which may
reach their limits very soon. When such units begin to "clip" the audio
waveform, they may generate high-frequency "spikes" of tremendous power.
More tweeters have probably been destroyed by this phenomenon than any
other. If using your speakers at loud levels, listen carefully for any sign
of harsh, garbled midrange and diminishing intelligibility-and turn the
volume down right away if you detect it.
NEVER TURN UP THE VOLUME ALL THE WAY TO SEE HOW LOUD
YOUR SYSTEM WILL PLAY!
5
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