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POWER INPUT
SPEAKER OUTPUT
+ + - -GND REM +12V
FUSE
7
Basic application
Crossover frequency control checklist:
These sub bass amplifiers can be used in any of the bi-amplification systems described in
LOW PASS: 40Hz to 150Hz
this manual, replacing the 2 channel amplifiers as per the illustrations.
SUBSONIC:15 Hz to 55 Hz
BASS EQ: 0 to +12dB
Interconnect cable checklist:
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA cables.
Connect the LINE OUT to the inputs of the system highs amplifier.
Level control checklist:
Refer to the section “Setting up systems after installation for best performance”
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals,
simplifying the hookup of multiple speakers
Minimum final loudspeaker impedance: 1-Ohm.
FULL RANGE
STEREO LINE INPUT
NOT USED
Y-ADAPTOR
Note: You can use the Radio/CD designated mono line output or a full range stereo line output.
For full range stereo line output, you will need an optional “Y-Adaptor” as shown.
TXi7508 A/B CLASS 1 CHANNEL AMPLIFIER APPLICATIONS
DESIGNATED
MONO OUTPUT
FROM HEAD UNIT
MONO
SUBWOOFER
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 Volts
VIA FUSE
POWER INPUT
SPEAKER OUTPUT
+ + - -GND REM +12V
FUSE
MINIMUM 1-Ohm LOAD
SUBS CAN BE 2-Ohms EACH
L
R
OUTPUT INPUT
REMOTE
CONTROL
POWER
PROTECT
BASS EQ
0dB 12dB
SUB
SONIC
15Hz 55Hz
LPF
40Hz 150Hz
LEVEL
6V 0.2V