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