Filter
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absolute fidelity
good place to start when making adjustments. In general, a lower
bass volume setting is needed in smaller rooms.
Next, adjust the phase with the buttons marked “” or “” on the
remote
control. When you first press the phase up or down button,
the display will flash
Ph
PhPh
Ph and then the current phase setting will be
shown. The next press of the button will move the phase up or
down. Set the phase to zero as an initial setting.
If you are not driving the servo-bass amplifier as recommended
using the output of the power amplifier and the Servo-Bass
Interconnect supplied, the phase will depend on the phase shift and
group delay of your power amplifier. A typical value can be
anywhere from 45 to 135 degrees. A phase inverting power
amplifier will require that you invert the input phase of the Servo-
Controlled amplifier.
Two crossover controls are provided on the Control Module that
helps you tune the system into your room. The high-pass filter
determines 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 20Hz. 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, the Control Module can memorize
up to two sets of settings. To recall the settings in Memory 1, press
the [1] key momentarily. To recall the settings in Memory 2, press the
[2] key momentarily.
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