Hifionics ZXI80.4, ZXI40.4 manual Crossover frequency control checklist Channels 1/2, Channels 3/4

ZXi40.4 / ZXi80.4 / ZXi150.4 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 ohm per channel.

	L
	L
MODE	CH2-CH4
10Hz-15KHz	HI PASS
HI	3/4 CH X-OVER
FULL LP/BP
30Hz-150Hz	LOW PASS
0dB-10dB	BASS EQ
6V 0.2V	LEVEL
	L

	CH1/2	LINE
	CH3/4	INPUT
		REMOTE
10Hz-15KHz		HI PASS
HI	X-OVER	1/2 CH
FULL LP/BP
30Hz-150Hz		LOW PASS
0dB-10dB		BASS EQ
6V 0.2V		LEVEL
PROTECT		POWER
	R	LINE OUT

			- RIGHT + - LEFT +
OUTPUT CH 3/4	BRIDGED
CH 1/2 SPEAKER			RIGHT + - LEFT +
	BRIDGED
FUSE			-
		GND REM BATT+12V
POWER INPUT

2 or 3 CHANNEL SYSTEM

Here we show how to use the 4 channel amplifiers as a 3 channel unit 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. If you only have 1 set of RCA outputs from your headunit, you can simply connect those to the inputs for ch 1/2 and switch the MODE to 2ch. The amplifier will auto sum the signal and provide mono output for bridged channels 3/4 once the X-OVER is switched to LP/BP.

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 Y- adapter RCA cable.

-Connect the mono speaker positive terminal to the LEFT +, and its negative terminal to RIGHT - as shown.

Switch setting checklist:

-1/2CH X-OVER: FULL

-3/4CH X-OVER: LP/BP

Crossover frequency control checklist:

Channels 1/2:

-HI PASS: N/A

-LOW PASS: N/A

Channels 3/4:

-HI PASS: N/A

-LPF: 11 o’clock

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:

-2 ohm per channel in stereo mode.

-4 ohm mono bridged.

STEREO LINE INPUT

MONO LINE INPUT

(Unless using procedure listed above for 3ch)

	L
	L
MODE	CH2-CH4
10Hz-15KHz	HI PASS
HI	3/4 CH X-OVER
FULL LP/BP
30Hz-150Hz	LOW PASS
0dB-10dB	BASS EQ
6V 0.2V	LEVEL
	L

	CH1/2	LINE
	CH3/4	INPUT
		REMOTE
10Hz-15KHz		HI PASS
HI	X-OVER	1/2 CH
FULL LP/BP
30Hz-150Hz		LOW PASS
0dB-10dB		BASS EQ
6V 0.2V		LEVEL
PROTECT		POWER
	R	LINE OUT

			- RIGHT + - LEFT +
OUTPUT CH 3/4	BRIDGED
CH 1/2 SPEAKER			RIGHT + - LEFT +
	BRIDGED
FUSE			-
		GND REM BATT+12V
POWER INPUT

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