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15
Speaker- & RCA-Connection
GTR2400.1
BASS REMOTEBALANCED
INPUT
6V
0dB 15dB
BOOST
0.2V
I NPUT
BASS
LEVEL
0°
180°
SHIFT
PHASE
15Hz 55Hz
SONIC
SUB
35Hz 250Hz
PASS
LOW
PROTECT
POWER
L
R
LINE OUTPUT
L
R
LINE INPUT
CONTROL P ANEL
FUSE
SPEAKER OUTPUT
GND REM 12V
POWER INPUT
Subwoofer
1 - 8 Ohm
Caution
Please avoid to connect speaker (-) to the ground or vehicle chassis.
Cable connection
• Connect INPUT of the amplifier to the head unit line output with good quality RCA cables.
By connecting the RCA jacks OUTPUT with a additional amplifier, a full range signal will be
provided to the amplifier. If your head unit is equiped with a separate Subwoofer Output it
is suggested to use this.
• Connect the subwoofer with the terminal block (SPEAKER OUTPUTS + / -) of the amplifier.
As option a additional Subwoofer can also be connected. The minimum total impedance
of both Subwoofer must be higher than 1 Ohm.
• Too low speaker loads result in too high heat dissipation and may cause the amplifier run into
protection.
• Please observe speaker channel and polarity as printed by the speaker terminal block.
Incorrect phasing of the speakers results in total loss of bass response.
LOW PASS - Control
Adjust a frequency between 35Hz - 150Hz, depending on the size and response of the Subwoofer.
SUBSONIC - Control
The SUBSONIC - Control adjusts the cut-off of the Subsonic-Frequency (lower Frequency cut-off).
Therewith a BANDPASS-Signal will be generated, where too low and not hearable frequencies will be eliminated.
Thereby a clean and powerful Bass-Signal will be generated. The adjustable level depends on the size and response of the
subwoofer and should be between 15Hz (no cut-off) and 55Hz (max. cut-off Level).
NOTE: If the SUBSONIC - Level is higher than the LOW PASS - Level, no Sound is hearable.
LEVEL INPUT - Control
• See page 13.
PHASE SHIFT - Control
• Allows to adjust the Phase of the Subwoofer between "0 - 180°". The adjustment depends on the size and installation of the
subwoofer.
BASS BOOST - Control
• The BASS BOOST - Control adjusts the bass level at 45 Hz from 0 up to 15dB. Please use the Bass-Boost carefully.
BASS REMOTE
• The BASS REMOTE allows to control the Bass-Level for example from the driver's seat.
Connect RCA cable from
head-unit with RCA input
(INPUT).
1-Channel-Mode: 1 Subwoofer / Mono
BASS REMOTE
OPTION:
As option an additional Subwoofer can be
connected with the non-occuppied Speaker
Terminals. Thereby check by any means the
changed impedance, the total impedance of both
subwoofers should not be lower than 1 ohm.
Maybe the Fuses of the Amplifier have to be
replaced with a higher Fuse Rating.
15


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