Pyle PLXR3B User Manual page 11

3. SETTING THE CROSSOVER POINT FOR THE FRONT (HIGH) OUTPUT
Set the desired frequency cuto point using the HIGH PASS FREQUENCY dial for.
your HIGH output, such as tweeters. The FREQUENCY MULTIPLIER switch must
be set at "x20" in order to obtain the frequency range from 700Hz to 8KHz.
You also have an option of reproducing mid bass or midrange level in the FRONT
by using the cuto frequency range from 30Hz to 400Hz with the FREQUENCY
MULTIPLIER switch at "x1".
FINE TUNE THE SYSTEM
One very important part of ne tuning your system is properly level matching
the signal from the head unit to the PLXR3B crossover and from the crossover to
the ampli ers. Level matching is the process of calibrating the audio signal from
the head unit all the way to the ampli ers to eliminate unwanted noise and
maximize the dynamic: headroom. When the system is properly adjusted, you
should achieve maximum output before distortion at about 3/4 volume on the
head unit.
MATCHING THE SIGNAL LEVEL
Note: If you have pre-amp Equalizer in the system, bypass or turn o the
equalization while level matching.
1. Turn all three output level dials on PLXR3B (Subwoofer, Rear, and Front) to
maximum position.
2. Turn the BASS BOOST LEVEL dial on PLXR3B to 0.
3. Turn all input sensitivity gain control knobs on output ampli ers to minimum
position.
4. Turn on the system and increase the head unit's volume to 3/4 high (75% of
Max volume).
5. Very slowly increase the input sensitivity gain on each ampli er to the point
right before the speakers go into distortion. Use CAUTION not to overdrive the
speakers. Do this for all three ampli ers one by one.
Once all adjustments are made, the system should sound clear without distortion
up to 3/4 of main volume. Also the volume should increase very evenly.
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