Hifonics TXi3400 TXI-3400 User Manual

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• Switch to the position 2CH.

• Switch to the position LP (LOW PASS). The cut-off frequency is adjustable by the LOW PASS contoller.

• Switch to the position DUPE.

• Turn the LEVEL INPUT controller of the amplifier to 6V position.

• Turn the head unit volume controller to about 80 - 90% of its full setting.

• Turn the LEVEL INPUT controller clockwise until you hear some distortion.

• Then turn back the LEVEL INPUT controller slightly until you can hear a clean sound.

• This controller regulates the Bass Boost from 0 - 12 dB.

  Caution! Please use the Bass-Boost carefully. The additional boost may result in clipping or overload. 

• The Bass Remote allows to control the bass level of the subwoofer e.g. out of the driver's seat.

• Connect the LINE INPUT of the amplifier to the head unit line output with appropriate good quality RCA cables.

• Connect the speakers/subwoofer with appropriate wires to the terminal block (SPEAKER OUTPUT/ - CH1/2 - BRIDGED + and 

the subwoofer with CH3/4 - BRIDGED +) of the amplifier.

• The minimum final subwoofer impedance must not be lower than 4 Ohms per channelpair. Too low speaker loads result in too 

high heat dissipation and may cause the amplifier run into protection.

• Please observe correct speaker channels and polarity as printed by the speaker terminal 

Subwoofer 2 

4 - 8 Ohm

Subwoofer 1

4 - 8 Ohm

Terminal for the bass remote 

controller (REMOTE).

Connect RCA outputs (CH1/2 or SUB OUT) of the 

head unit with LINE INPUT (CH3/4) of the amplifier.