MTX Audio MXA4002 - Manual (Page 11)

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). The
Remote Gain only works when you’ve selected the LPF (low-pass) crossover
configuration.
Crossover Section
The amplifier has built-in high-pass/low-pass filters that can be bypassed by sliding the
switch to the (FR) position.
1. When the high-pass is selected (HP), the amplifier will be devoted to mid/tweeters.
2. When the low-pass is selected (LP), the amplifier will be used to drive woofers/sub
woofers. With this setting, the Remote Gain can directly control the amplifier
playback level.
3. When the full range is selected (FR), the amplifier is used as a full range amplifier.
Crossover Frequency Selection (FREQ)
Both the high-pass and the low-pass section offer continuously adjustable crossover
frequencies between 40 and 350 Hz. Adjust the setting according to your speaker c
omponent 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!
SYSTEM TUNING (CROSSOVER ADJUSTMENT)
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