www.PyleUSA.com
11
3. SETTING THE CROSSOVER POINT FOR THE FRONT (HIGH) OUTPUT
Set the desired frequency cutoff 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 cutoff frequency range from 30Hz to 400Hz with the
FREQUENCY
MULTIPLIER
switch at "
x1
".
FINE TUNE THE SYSTEM
One very important part of fine tuning your system is properly level matching
the signal from the head unit to the
PLXR3B
crossover and from the crossover to
the amplifiers. Level matching is the process of calibrating the audio signal from
the head unit all the way to the amplifiers 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 off 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 amplifiers 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 amplifier to the point
right before the speakers go into distortion. Use
CAUTION
not to overdrive the
speakers. Do this for all three amplifiers 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.
