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GPA700.2 / GPA1100.2 / GPA1800.2 2-CHANNEL AMPLIFIER APPLICATIONS
Stereo high pass with mono low-pass in a 2 way active, or bi-amplified system
In this application we will use a 2 channel amplifier for the high frequencies, and a second
one for the low frequencies, or mono sub bass. Please consult the speaker specifications
to determine maximum amplifier power requirements.
Interconnect cable checklist:
Connect the inputs of the HIGHS amplifier to a Radio/CD with good quality RCA cables.
Connect the LINE OUT of the HIGHS amplifier to the inputs of the BASS amplifier with a
stereo RCAto RCAcable.
Mono bass woofer wiring:
Connect the mono speaker positive terminal to the RIGHT +, and its negative terminal to
LEFT -.
Switch setting checklist:
- Highs amplifier: X-OVER
switch in the
MODE
switch in the
- Lows amplifier: X-OVER
switch in the
MODE
switch in the
FULL RANGE
STEREO LINE INPUT
4
HPF
position.
STEREO
position.
LPF
position.
MONO
position.
STEREO
INTERCONNECT
RCA CABLE
Crossover frequency control checklist:
Highs amplifier:
- HI PASS: 100 Hz
- LOW PASS: N/A
Lows amplifier:
- HI PASS (Subsonic filter): 10 Hz to 40 Hz
- LOW PASS: 80 Hz
Please note that these frequency points are suggestions only. Refer to the loudspeaker
manufacturer specifications and the section
performance"
Level control checklist:
- Refer to the section
"Setting up systems after installation for best performance"
Minimum final loudspeaker impedances:
- 2-Ohms per channel stereo.
- 4-Ohms mono bridged.
"Setting up systems after installation for best
FULL RANGE
SPEAKERS
TO BATTERY + 12 volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
MONO BASS
SPEAKER
TO BATTERY + 12 volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
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