Ver 1.0
14
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how low the woofers will play, and the low-pass filter determines how
high the woofers play to. The frequency that you set these filters to will
be the “knee” frequency after which the woofers will attenuate by 6dB
per octave, and is not the –3dB point.
The high-pass filter and low-pass filter is set using the up/
down/ left/ right navigation ring around the OK button.
Up/down adjusts the high-pass filter up and down respectively,
and right/left adjusts the low-pass up and down respectively.
Initially, set the high-pass (
HI
HIHI
HI) filter to 26Hz until the woofers
and amplifiers break in (about 300 hours of play). After which it
can be set to 16Hz. Next, adjust the low pass (LO
LOLO
LO) filter to
98Hz using the button marked "low pass" (on the remote
control).
In addition to the current setting, each of the Control Modules can
memorize up to two additional sets of settings. To store the current
settings in Memory 1, press and hold the [1] key for approximately 5
seconds or until the display flashes. To store the current settings in
Memory 2, press and hold the [2] key for 5 seconds or until the display
flashes.
To recall the settings in Memory 1, press the [1] key momentarily. To
recall the settings in Memory 2, press the [2] key momentarily.
2.3 Servo-Controlled Bass Amplifier Protection
The servo-bass amplifier has numerous protection circuits built in to
protect both the amplifier and the woofers. If you over-drive the bass
woofers, the current limiter on there servo-amplifier will kick in, and
you will hear clicking or thumping sounds. If that happens, turn down
the volume of your system to protect your hearing and your speakers.
Until the woofers have broken in, you may find that the woofers will
limit even at fairly low volumes. This is normal as the stiffness of the
woofer suspension will restrict the movement of the cones.
The amplifier is designed to be current-limited to 20 amps – this is
more than enough to supply over 800W transients into each pair of
the woofers. However, the servo-system is not compression or
dynamic limited. Hence, it is possible to play the system too loud or
with too high bass gain, and damage the woofers (and possibly your
ears).