MTX Audio TA81001 specifications Troubleshooting, Problem Cause

•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
No LED indication	No +12V at remote connection
	No +12V at Power connection
	Insufficient ground connection
	Blown power fuse
LED on, no output	Volume on head unit off
	Speaker connections not made
	Gain control on amplifier off
	Signal processing units off
	All speakers blown
Output distorted	Head unit volume set too high
	Amplifier gain set too high
Balance reversed	Speakers wired L + R reversed
	RCA inputs reversed
Bass is weak	Speakers wired out
	phase
	Not using MTX woofers
Blowing fuses	Excessive output levels
	Amplifier defective

SOLUTION

Supply +12V to terminal

Supply +12V to terminal

Verify ground connection

Replace fuse

Increase volume on head unit Make speaker connections Turn up gain

Apply power to signal processor Replace speakers

Lower head unit volume

Lower amplifier gain

Wire speakers with correct orientation Reverse RCA input

Wire with correct of phase

Buy MTX woofers

Lower volume

Return for service