1 1 Ground amplifier to chassis of vehicle; connect the terminal provided to the 10ga black wire from furnished wiring harness. A good ground is as important as the power connection. The ground should be as short as possible and the contact point should be free of paint and debris.

SPEAKER WIRES

1 2 In the channel on driver's and passenger's side threshold locate the rear speaker wires Colors are driver's side, yellow/blue (positive) tan/yellow (negative), and passenger's side, orange/yellow (positive), brown/purple (negative). Tap into wires with supplied RCA High Level input wires and route under carpet to the rear seat, over to pre-amp on enclosure.

Although, MTX has made every effort to assure proper wiring colors, MTX is not responsible for any changes made by the vehicle manufac- turer which sometime occur. If wiring colors do not match then physical verification is required.

CONNECTION TO ENCLOSURE

1 3 Connect speaker wire RCA's to the inputs of pre-amp.

Note: Patented BTL turn on circuitry- amplifier senses DC offset provided by “high powered” or BTL type head units. This feature turns the amplifier on automatically if you are using high level inputs.

20 Amp Fuse

+

Optional EBC

(Electronic Bass Control)

 

 

 

 

 

SOLI D

Yellow/Blue (+)

 

 

 

 

 

 

REMGND PWR

 

INPUT

ROVE-X GAI N

STATUS

 

 

EBC

LEFTRIGH T

 

Tan/Yellow (-)

 

 

 

 

 

 

 

 

 

 

 

STRIPED

 

1 4 Plug power harness into amplifier pre-amp.

 

REM GN D PWR

 

INPUT

 

 

20 A

EB C

LEFT RIGH T

X-OVER GAIN

STATUS

1 5 Replace 20amp fuse under hood.

1 6 When amp turns on, LED will display red during diagnostic mode, and then green, signaling amp is on and functioning. Amp will only turn on when radio is on.

1 7 Adjust gain and crossover.

Setting Gain

Turn gain knob on Thunderform pre-amp to minimum, counter clock- wise. Play a favorite tape or compact disc that contains consistent music and bass. Turn the source unit to maximum listening level. You should know that some source units will produce distortion or “clip” before the unit reaches maximum volume. Reduce volume to the loudest listening level before distortion. Turn the gain knob on the Thunderform pre-amp clockwise until the speaker starts to distort and reduce gain to loudest listening level before distortion.

Optional- The EBC, or Electronic Bass Control , allows a remote bass control to be adjusted from the driver's seat.

Setting Crossover

You should set the crossover to your own personal listening taste. The crossover is adjustable to any frequency between 50Hz (counterclock- wise) to 150Hz (clockwise). As a guideline, the goal is to create the illu- sion of bass up front. The higher the crossover point the more “audibly visible” your sub is going to be. Take your time and really listen to your system, grab a soda and a few of your favorite tunes and have fun.

TROUBLESHOOTING TIPS IF AMP DOES NOT TURN ON

Check all connections at battery and that fuse is installed

SOLI D

Brown/Purple (-)

Orange/Yell ow (+)

Check speaker wire connections

Check ground

Check fuse on pre-amp

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MTX Audio F-150 SUPERCREW warranty Speaker Wires, Connection to Enclosure, Setting Gain, Setting Crossover