Pyle PLXR3B User Manual page 10

Subwoofer
1. SETTING THE SUBWOOFER CROSSOVER POINT, BASS BOOST, PHASE,
and SUB SONIC FILTER
Set the desired CROSSOVER FREQUENCY tor the subwoofer output using the
LOW PASS FREQUENCY dial. You may select from 40Hz up to 400Hz as your
crossover point.
Set the BASS BOOST by using the two dials. Use the LEVEL dial to set the boost
gain from 0 to 18dB. and use the FREQUENCY dial to set the bass boost frequency
point from 40Hz up to 400Hz.
Select the PHASE of the subwoofer using the PHASE switch, 0 degrees in phase or
180 degrees out of phase. The normal default setting is 0 degrees in phase.
SUBSONIC FILTER may be turned on/o by using the SUBSONIC FILTER switch.
When switched on, this Filter avoids reproduction of inaudible low frequencies
below 25Hz which could damage the subwoofer(s) because they can generate
over displacement of the subwoofer cone. It is recommended that the SUBSONIC
FILTER be switched ON.
2. SETTING THE CROSSOVER POINTS FOR THE REAR (MIDRANGE) OUTPUT
Usually the MID output is a BAND PASS design. It's achieved by setting the MODE
switch at "BAND PASS" and using both HIGH PASS and LOW PASS FREQUENCY
dials. Set the desired HIGH PASS frequency anywhere between 65Hz and 300Hz
for the low frequency cuto , and set the desired Low PASS frequency anywhere
between 2.9KHz and 4.8KHz for the high frequency cuto .
Selecting HIGH PASS from the MODE switch and using HIGH PASS FREQUENCY
dial alone will remove the high cuto section and allow the midrange output to
play up to 20KHz.
Selecting LOW PASS from the MODE switch and using LOW PASS FREQUENCY
dial alone will remove the low cuto section and allow the midrange output to
play down to 20Hz. This setting will be ideal if you're using mid bass speakers
capable of reproducing low to mid frequencies.
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Mid
High