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• Setting the Frequency: Begin listening for the loudest musical spot or range within the bass range of your
sound system. Adjust the center frequency to match this point. For most systems, the best center frequency
adjustment will be between 40-50Hz. Use 45Hz (12 o’clock setting) as a starting point and adjust up or down
gradually.
• Setting the Boost/Cut: Once you determined the loudest musical spot or range within the bass range of your
sound system, start cutting until the response is smooth and even. You can also boost low spots within the
musical range, but don’t go crazy with the boost knob. There is a lot of boost available, 12dB, but begin with
a low boost setting (around 3dB) and try to stay below 6 dB whenever possible. Remember that for every 3dB
of additional boost you dial in, you are asking the amplifier to double its power output for a given signal in the
boost region.
6. Remote Subwoofer Level Control (Remote Gain) – Let’s say the amplifier’s gain is set at halfway. When the
remote subwoofer level control is plugged in, you have external control of the gain from zero to halfway. The
installation of this level control is NOT necessary to get full power from amplifier.
Note: One Remote Subwoofer Level Control can control two or more amplifiers using a mini plug Y-adapter.
7. Setting the Phase – Depress the PHASE button to ensure the subwoofer interacts correctly between the mid-
bass, or midrange, speakers. The PHASE button is located in the PROCESSOR section of the control panel.
Whether you want the position of the phase at 0 degrees or 180 degrees will be determined once you hear
your audio system produce smooth, tight, and louder bass. You need to try both 0 and 180 degree positions to
hear the difference.
8. Prizm EFX – Now that you have completed adjusting all your amplifier settings, you can set the lighting effects
to your personal taste.
• Selecting Colors: You can change the backlit colors simply by turning the dial labeled PRIZM COLOR, located
in the MTX PRIZM EFX section of the control panel, left or right. Starting at the left most position, the colors
range from RED to GREEN, BLUE, and then RED again. You can choose any color in between making the
combinations unlimited.
• Selecting the EFX Feature: You can switch Prizm EFX lighting to “pulsate” with the beat of the music. Simply
depress the button labeled PRIZM EFX located in the in the MTX PRIZM EFX section of the control panel to
turn this feature on or off.
Troubleshooting
Read this if you want to be a do-it-yourselfer or give us a call at 800-CALLMTX.
PROBLEM CAUSE SOLUTION
No LED indication No +12V at remote connection Supply +12V to terminal
No +12V at Power connection Supply +12V to terminal
Insufficient ground connection Verify ground connection
Blown power fuse Replace fuse
LED on, no output Volume on head unit off Increase volume on head unit
Speaker connections not made Make speaker connections
Gain control on amplifier off Turn up gain
Signal processing units off Apply power to signal processor
All speakers blown Replace speakers
Output distorted Head unit volume set too high Lower head unit volume
Amplifier gain set too high Lower amplifier gain
Balance reversed Speakers wired L + R reversed Wire speakers with correct orientation
RCA inputs reversed Reverse RCA input
Bass is weak Speakers wired out Wire with correct of phase
phase
Not using MTX woofers Buy MTX woofers
Blowing fuses Excessive output levels Lower volume
Amplifier defective Return for service