TXi4408 / TXi6408 / 4 CHANNEL AMPLIFIER APPLICATIONS
4 CHANNEL FULL RANGE SYSTEM
Here we show how to use the 4 channel amplifiers as straightforward discrete 4 channel full range units.
Interconnect cable checklist:
- Connect the four inputs of the amplifier to a Radio/CD with quality RCA cables.
Switch setting checklist:
-1/2CH X-OVER: FULL
-3/4CH X-OVER: FULL
Crossover frequency control checklist:
Channels 1/2:
- HI PASS: N/A
- LOW PASS: N/A
Channels 3/4:
-HI PASS: N/A
-LOW PASS: N/A
Level control checklist:
-Refer to the section “Setting up systems after installation for best performance”
Minimum final loudspeaker impedances: - 2-Ohms per channel.
FULL RANGE
STEREO LINE
INPUTS
| CH3/4 |
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| LINE |
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| CH1/2 |
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| INPUT |
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| CH1 CH2 | + - gnd - + | HI INPUT | + - gnd - + | CH3 CH4 |
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| 5V 0.2V | LEVEL | 5V 0.2V |
| LEVEL |
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CHANNEL 1 / 2 | 0dB 12dB 60Hz 1.2KHz | BASS EQ HPF | 0dB 12dB 60Hz 1.2KHz |
| BASS EQ HPF | CHANNEL 3 / 4 |
| 30Hz 250Hz | LPF | 30Hz 250Hz |
| LPF |
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| FULL LPF HPF | FULL LPF HPF |
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| CHANNEL | 2 3 4 | MODE |
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| R | LINE OUTPUT |
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| FULL RANGE |
SPEAKEROUTPUT | +RIGHT - LEFT |
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RIDGED |
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| SPEAKERS | ||
FUSE | - |
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| TO BATTERY + 12 Volts VIA FUSE | |||
POWERINPUT | REMGND+12V |
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| REMOTE | ||||
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| CHASSIS GROUND | ||
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SPEAKEROUTPUT | +RIGHT - LEFT |
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| FULL RANGE |
BRIDGE |
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| SPEAKERS |
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2 or 3 CHANNEL FULL RANGE SYSTEM
Here we show how to use the 4 channel amplifiers as full range 2 or 3 channel units by taking advantage of the mono bridging capability of all Hifonics amplifiers.
The following example shows how to create a 3 channel system by mono bridging channel pair 3 / 4. In order to create a 2 channel system, simply follow the example to also mono bridge channel pair 1 / 2.
Interconnect cable checklist:
-Connect the inputs of channel pair 1/2 to a suitable stereo source, e.g. a head unit with good quality RCA cables.
-A MONO signal source is required to bridge channel pair 3/4, such as would be available from the mono sub bass output of an active crossover, whether standalone, or built into a head unit or equalizer.
Important: Do not be tempted to connect the hot, or positive outputs, from any source together to obtain a mono signal, as this could very well damage the output stage of that source.
-It is necessary to feed the SAME signal to both left and right inputs via a
-Connect the mono speaker positive terminal to the LEFT +, and its negative terminal to RIGHT - as shown.
Switch setting checklist:
-1/2CH
-3/4CH
Crossover frequency control checklist:
Channels 1/2:
-HI PASS: N/A
-LOW PASS: N/A
Channels 3/4:
-HI PASS: N/A
-LOW PASS: N/A
TIP: If you are using the mono sub bass output of an active crossover, there is nothing wrong with switching in the low pass filter in these amplifiers for a steeper low pass rolloff.
Level control checklist:
-Refer to the section “Setting up systems after installation for best performance”
Minimum final loudspeaker impedances:
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MONO
FULL RANGE 
LINE INPUT
STEREO
FULL RANGE
LINE INPUTS
| CH3/4 |
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| LINE |
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| CH1/2 |
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| INPUT |
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| CH1 CH2 | + - gnd - + | HI INPUT | + - gnd - + | CH3 CH4 |
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| 5V 0.2V | LEVEL | 5V 0.2V |
| LEVEL |
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CHANNEL 1 / 2 | 0dB 12dB 60Hz 1.2KHz | BASS EQ HPF | 0dB 12dB 60Hz 1.2KHz |
| BASS EQ HPF | CHANNEL 3 / 4 |
| 30Hz 250Hz | LPF | 30Hz 250Hz |
| LPF |
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| FULL LPF HPF | FULL LPF HPF |
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| CHANNEL | 2 3 4 | MODE |
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| R | LINE OUTPUT |
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| MONO |
SPEAKEROUTPUT | +RIGHT- LEFT |
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BRIDGED |
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| SPEAKER | ||
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| OR SUB BASS |
FUSE | - |
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| TO BATTERY + 12 Volts VIA FUSE | |||||
POWERINPUT | REMGND+12V |
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| REMOTE | ||||||
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| CHASSIS GROUN | ||||
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| STEREO |
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OUTPUTSPEAKER | +RIGHT- LEFT |
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BRIDGE |
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| FULL RANGE |
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SPEAKERS
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