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GTX3000D
20
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 OUTPUT + / -) by using appropriate wires.
Ensure by any means, that the total impedance load of subwoofer is not lower than 1 ohm. 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.
MODE SWITCH
• The MODE switch must be in Position MASTER.
LEVEL CONTROLLER
• Turn the LEVEL controller of the amplifier to the 6V position.
• Turn the volume controller of the headunit to 80 - 90% of its full setting.
• Turn the LEVEL controller clockwise until you hear some distortion.
• Then turn back the LEVEL controller slightly until you hear a cleaner sound.
EXTENDED BASS CONTROL
• The SUB BOOST controller adjusts the bass enhancement between 0db and +18dB.
• 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!
• Attend therefor the further information (EXTENDED BASS CONTROL) on page 19 (Section #5).
LOW PASS CONTROLLER
• The LOW PASS controller adjusts the cut-off point of the frequency range to above. The cut-off frequency is continuously
adjustable from 35 Hz to 250 Hz.
SUB SONIC CONTROLLER
The SUB SONIC controller (Subsonicfilter) limits the ultralow and not hearable frequencies of the audiosignal to below, to avoid a
mechanical and electrical overloading on the subwoofer. The cut-off frequency is adjustable from 15 to 55 Hz and depends on the size
of the subwoofer.
PHASE CONTROLLER
The PHASE controller allows to adjust the phasing between 0° and 180°.
Thereby you are able to adjust the subwoofer perfect to the vehicle’s acustics.
BASS REMOTE
The enclosed BASS REMOTE Controller adjusts the bass-level e.g. from the driver’s seat.
Please use only the enclosed bass remote controller and cable.
INTERCONNECTION EXAMPLE Low Pass-Mode (Standard Subwoofer Operation)
Connect the bass remote
controller and the
remote terminal on the amplifier
with the enclosed cable.
Connect stereo RCA output
(R/L or SUB OUT)
of the headunit with
LINE INPUT R/L of the amplifier
RL
Subwoofer
1 – 8 Ohms
Switch setting =
MASTER
A additional subwoofer can be
connected to the non-occupied
speaker outputs. In this case
ensure a impedance of 2 - 8 ohms
per subwoofer.
NOTE!
20


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