LPF (Low Pass Filter) Adjustment
The crossover frequency adjustment filters out frequencies that you don’t want your subwoofer(s) to repro-
duce. Using the LPF control, adjust the Low Pass Frequency to limit the amount of mid range you want going
to your woofer(s). Since musical tastes vary, adjust the crossover by ear while listening to the music of your
choice. Be sure to set the tone controls of your source unit to flat before adjusting the crossover.
See the chart on page 23 to set the Low Pass filter to the precise frequency.
Fig.9 Low Pass Control
250Hz
15
Adjusting the BASS EQ and BASS FREQ Controls
The BASS EQ is adjustable from 0-18dB, thus allowing you to tailor your sound system to your particular tastes.
The BASS FREQ control has 40 click detents that allow you to choose precisely the frequency the BASS EQ will
boost. Refer to the chart on page 23 and find the setting of the BASS FREQ and determine what frequency you
want the BASS EQ to boost. You will want to experiment with both controls—begin your adjustments at low
volume. Next turn the BASS EQ control about half-way up. Adjust the controls until you find the right combina-
tion that sounds best with the music you listen to most.
NOTE: More is not always better. By turning the BASS EQ all the way up to 18dB you can overwork
the amplifier and send the unit into thermal protection.
Fig.10a Bass EQ Control
Fig.10b Bass FREQ Control
0dB
+18dB
40Hz
100Hz
25Hz