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HFi55.4 / HFi100.4 4-CHANNEL AMPLIFIER APPLICATIONS
5
Front/Rear high pass, using a 2 channel amplifier for mono sub bass
Channels 1/2:
The combination of a 2 and a 4 channel amplifier, utilizing their built in
- HI PASS: 100 Hz
crossovers, makes it a snap to put together a full system with front and rear
highs, with mono sub bass.
LOW PASS: N/A
Interconnect cable checklist:
Channels 3/4:
- Using good quality RCA cables, feed the front and rear outputs of a head unit to
- HI PASS: 100 Hz
the inputs of the 4 channel amplifier as shown.
- LOW PASS: N/A
- Also connect the LINE OUT of the 4 channel amplifier to the LINE INPUT of the
2 channel amplifier as shown.
2 channel bass amplifier:
- HI PASS (Subsonic filter): 10 Hz to 40 Hz
Mono bass woofer wiring:
- LOW PASS: 80 Hz
Connect the mono speaker positive terminal to the LEFT +, and its negative
terminal to RIGHT -.
Please note that these frequency points are suggestions only. Refer to the
loudspeaker manufacturer specifications and the section “Setting up systems
Switch setting checklist:
after installation for best performance”
4 channel highs amplifier:
- 1/2CH X-OVER: HPF
Level control checklist:
- 3/4CH X-OVER: HPF
- Refer to the section “Setting up systems after installation for best performance”
2 channel bass amplifier:
Minimum final loudspeaker impedances:
- X-OVER switch: LPF
- 2 ohm per channel in stereo mode.
- 4 ohm mono bridged.
Crossover frequency control checklist:
- 4 channel highs amplifier:
STEREO
INTERCONNECT
RCA CABLE
LINE OUTCH3/4 CH1/2
L L
R R
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz
LEVEL BASS EQ X-OVER HPF LPF
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz 2 3 4
LEVEL BASS EQ X-OVER HPF LPF MODE
POWER
PROTECT
POWER INPUT
GND REM BATT+12V
CH 1/2 SPEAKER OUTPUT CH 3/4
RIGHT LEFT RIGHT LEFT
- + - + - + - +
BRIDGED BRIDGED
FUSE
H F
OUTPUT INPUT
L L
R R
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz MONO STEREO
LEVEL BASS EQ X-OVER HPF LPF MODE
POWER
PROTECT
POWER INPUT
GND REM BATT+12V
SPEAKER OUTPUT
RIGHT LEFT
- + - +
BRIDGED
FUSE
H F
SUBWOOFER
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY +12v
VIA FUSE