G T X 2 4 0 0 - G T X 2 6 0 0
2 3
Do not connect loudspeaker cables with the vehicle chassis.
Always ensure the correct polarity of all connections.
REFERENCE NOTE
INTERCONNECTION EXAMPLE 1-Channel Mode: 1x Mono Subwoofer bridged
Use the bass enhancement with care.
A high bass boost may cause damage to your speakers and hearing abilities.
INTERCONNECTION
• Connect the RCA lineouts of the headunit with the RCA jacks LINE INPUT of the amplifier with appropriate high-value RCA cables.
If your headunit is equipped with a additional subwoofer lineout (SUB OUT), it is recommended to use this lineout.
• Connect the subwoofer with the speaker outputs (SPEAKER BRIDGED -) by using appropriate wires.
• Ensure by any means, that the total impedance load of the channel-pair is not lower than 4 ohms. Too low impedance cause high
temperature and will shut down the amplifier operation.
• Always ensure the correct polarity of the speakers. The interchange of plus and minus cause total loss of bass playback and could
damage the speakers.
CROSSOVER SETTINGS
• In the mono/subwoofer mode the X-OVER switch must set to the LP/BP position (Lowpass/Bandpass mode), thereby the higher
frequencies will be eliminated. The cut-off frequency ist adjustable with the LOW PASS controller and should be set between
60 to 100 Hz, depending on the size of the subwoofer.
• In the lowpass mode (LP/BP) the HIGH PASS controller works also as subsonicfilter, that eliminates the ultra-low, not hearable and
harmful frequencies to generate a bandpass signal (Bandpass mode). The subsonic frequency should be set between 15 to 40 Hz,
depending on the size of the subwoofer. NOTE: If this value is higher than the lowpass setting, no sound is hearable.
LEVEL CONTROLLER
• Turn the LEVEL INPUT controller of the amplifier to the 4V position.
• Turn the volume controller of the headunit to 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 hear a cleaner sound.
BASS BOOST CONTROLLER
• The BASS BOOST controller adjusts the bass enhancement between 0db and +12dB.
• A too high bass boost may cause clipping/distortion and damage on the loudspeakers and also may harm your hearing abilities.
Use this controller carefully!
BASS REMOTE
• The enclosed BASS REMOTE Controller adjusts the bass-level e.g. from the driver’s seat.
Please use only this enclosed bass remote controller and cable.
Connect stereo RCA output
(L/R or SUB OUT)
of the headunit with
LINE INPUT L/R of the amplifier
R
L
Subwoofer
4 – 8 Ohms
Switch position LP/BP
Connect the bass remote
controller and the
remote terminal on the amplifier
with the enclosed cable.
