MTX MXA4001 Owner's Manual page 11

SYSTEM TUNING (CROSSOVER ADJUSTMENT)
Note: If you are using the Remote Gain, make sure to take this into account during set-up
procedures of the subwoofer amplifier. You should set the system up with the Remote Gain
plugged in, and with the level knob turned all the way down (counter-clockwise).
CROSSOVER FREQUENCY SELECTION
(FREQ)
The built-in low-pass crossover offers continuously adjustable crossover frequencies between
40 and 200 Hz. Adjust the setting according to your speaker component
specification or to your particular preference.
BASS BOOST CONTROL
(BASS BOOST)
Select a boost level between 0dB and +18dB @ 40Hz to enhance the bass performance for
your sound system. BASS BOOST is NOT free! Every 3dB of boost costs you twice as much in
power. Make sure to set the final gains after setting the Bass Boost to work best with your
subwoofer/enclosure combination. More is NOT always better!
SUBSONIC FILTER
(SUB SONIC)
The fixed 30Hz sub sonic filter can be set on/off. When enabled, the integrated sub sonic filter
creates cleaner and tighter bass reproduction by protecting the power amp and speaker from
harmful ultra-low frequencies. We recommend enabling this item at all times.
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