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1312
POLK/MOMO: CHAMPIONSHIP PERFORMANCE
120 150
1 REMOTE BASS GAIN MODULE JACK
Accepts telephone jack input connection from the remote
bass gain module (only works when crossover is set
to LP). Set GAIN (6) to max when using the remote.
Remote bass gain module is sold separately. See your
Authorized Polk AutoSound Dealer or visit the
webstore at polkaudio.com.
2 CROSSOVER MODE SELECTOR SWITCH
A] set to LP position when the amplifier is used to drive a
subwoofer. The frequencies above the crossover point will
be attenuated at 18dB/Octave. B] set to OFF position
when the amplifier will be used to drive full range speak-
ers with no subwoofer in the system. The full frequency
bandwidth will be output to the speakers with no high or
low frequency attenuation. C] set to HP position when the
amplifier is used to drive full range speakers with a sub-
woofer in the system. The frequencies below the crossover
point will be attenuated at 18dB/Octave.
3 CROSSOVER FREQUENCY
ADJUSTMENT
The crossover frequency adjustment filters out
frequencies that you don’t want the speaker to reproduce.
When the CROSOVER MODE is set to LP it filters out the
midrange and high frequencies from the subwoofer. If
it is set too high, you’ll hear voices and other midrange
sounds coming from the subwoofer and the bass will
seem to come only from the rear of the vehicle. If it is set
too low, you’ll miss the “kidney punch” kick of the mid-
bass. Set the control to 80Hz – 120Hz and adjust it by ear
from there.
When the CROSSOVER MODE is set to HP it filters out
bass from your midrange or full range speakers. That
takes strain off the speakers, allowing them to play
louder with less distortion. Set the Frequency Control to
around 80Hz – 100Hz. If it sounds like you're losing too
much mid-bass punch, turn the Frequency Control
down to 50Hz.
When the CROSSOVER MODE is set to OFF, the
Frequency Control does nothing.
4 POLK/MOMO PRE-EQ SWITCH
One-button preset EQ delivers enhanced performance
when used with Polk/MOMO Subwoofers (when
CROSSOVER MODE SELECTOR SWITCH is set at “LP”)
and Polk/MOMO full-range speakers (when CROSSOVER
MODE SELECTOR SWITCH is set at “HP”). Pre-EQ switch
is defeated when the CROSSOVER MODE SELECTOR
SWITCH is set at “OFF”.
5 INPUT TYPE SELECTOR
Select the type of connections made: LOW “line” level
RCA connections, or HIGH level speaker wire connec-
tions. Default position is LOW, as the most popular head
unit output connections are RCA. To use HIGH level
speaker wire inputs, simply attach an RCA connector to
your speaker wire, and move this switch to HIGH.
6 GAIN ADJUSTMENT
Begin with gain set at about the 11 o’clock position. Once
all settings are made, turn this setting up until your source
JUST BEGINS to distort, then back off slightly to cut
distortion and operate at optimum gain.
Detailed Adjustments for the Amp Panel
LR
FUSE
BATTERY
Remote turn on
from source unit
Pr
e
-E
Q
"
O
N
"
4
2
3
Settings
Output
from
headunit
Coax
Driver
Coax
Driver
DIST.
BLOCK
Connect
to nearest
chassis
ground
1
26
5
43
2-Channel Coax Hook-Up