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INTERCONNECTION EXAMPLE
4-channel-mode: 1 x Stereo-System (Front) and 1 x Stereo-System (Rear)
FUNCTIONAL INSTRUCTIONS
INTERCONNECTION
Connect the RCA lineouts of the head unit with the RCA jacks LINE IN of the amplier with appropriate high-value RCA cables.
Connect the front and rear speakers with the speaker outputs (SPEAKER OUTPUT + 1CH -, + 2CH - and + 3CH -, + 4CH -).
Always ensure that the total impedance load on the speaker outputs is not lower than 2 ohms.
Too low impedance cause high temperature and will shut down the amplier operation.
Always ensure the correct polarity of the speakers. The interchange of plus and minus cause total loss of bass playback and could
damage the speakers.
INPUT MODE SWITCH
Select the 4CH position on the INPUT MODE switch. If there is only one RCA stereo audio cable from the head unit available,
connect the CH1/2 RCA line inputs and select the 2CH position.
CROSSOVER SETTINGS CH1/2 & CH3/4
When using bigger speakers (more than 20cm) set the X-OVER switch to the FULL position (Full Range Signal).
When using smaller speakers (8.7cm - 16cm) set the X-OVER switch to the HP position (Highpass Mode) to avoid any damage
by lower frequencies on the speakers. The cut-off frequency is adjustable with the HP/BP controller and should be set between
60Hz to 150Hz, depending on the size of the speakers.
The LP controller is not in use in this interconnecting example.
LEVEL CONTROLLER CH1/2 & CH3/4
Turn the LEVEL controller of the amplier to the MIN position.
Turn the volume controller of the head unit to 80 - 90% of its full setting.
Turn the LEVEL controller clockwise until you hear some distortion.
Then turn back the LEVEL controller slightly until you hear a cleaner sound.
BASS BOOST CONTROLLER
The BASS BOOST controller must be turned to 0 dB position in this interconnecting example .
BASS REMOTE
The enclosed BASS REMOTE CONTROLLER is not in use in this interconnecting example.
TWIN SUB SWITCH
Select position OFF on the TWIN SUB switch.
Do not connect loudspeaker cables with the vehicle’s chassis. Always ensure the correct polarity of all connections. The interchange
of plus and minus cause total loss of bass playback and could damage the speakers.
NOTE
Connect stereo RCA outputs (FL/FR & RL/RR) of
the head unit with LINE IN CH1 / CH2 and CH3 / CH4
of the amplier
HP or FULL
OFF
HP or FULL 4CH
Loudspeaker
left, front
2 – 8 Ohms
Loudspeaker
left, rear
2 – 8 Ohms
Loudspeaker
right, front
2 – 8 Ohms
Loudspeaker
right, rear
2 – 8 Ohms
60A
POWER INPUT
SPEAKER OUTPUT
BRIDGED
PROTECT
POWER
FULLHP
LP
CH3/4
HP/BP LEVEL
BASS LEVEL
CONTROLLER
AUTO TURN ON
(ONLY IN HI LEVEL INPUT MODE)
0dB 18dB
LINE OUT
CH2CH1
LEVEL
INPUT
X-OVER
MODE
10Hz 1.2kHz
30Hz 250Hz
CH3
CH4
MIN MAX
OFF
ON
LOW
HI
BASS BOOST
L
R
GND +12VREM
FULLHPLP/BP
LP
HP/BP LEVEL
0dB 18dB
X-OVER
MODE
10Hz 1.2kHz
30Hz 250Hz
MIN MAX
BASS BOOST
LINE IN
CH1
CH2
2CH4CH
CH1/2
INPUT MODE
BRIDGED
CH4CH3
LP/BP
SUB
TWIN
OFF
ON
ZRX4404
FUSE
BLUE / WHITE
LOG0
POWER INPUT
FUSE
SPEAKER OUTPUT
BRIDGED
PROTECT
POWER
FULLHP
LP
CH3/4
HP/BP LEVEL
BASS LEVEL
CONTROLLER
AUTO TURN ON
(ONLY IN HI LEVEL INPUT MODE)
0dB 18dB
LINE OUT
CH2CH1
LEVEL
INPUT
X-OVER
MODE
10Hz 1.2kHz
30Hz 250Hz
CH3
CH4
MIN MAX
OFF
ON
LOW
HI
BASS BOOST
L
R
GND +12VREM
FULLHPLP/BP
LP
HP/BP LEVEL
0dB 18dB
X-OVER
MODE
10Hz 1.2kHz
30Hz 250Hz
MIN MAX
BASS BOOST
LINE IN
CH1
CH2
2CH4CH
CH1/2
INPUT MODE
BRIDGED
CH4CH3
ZRX9404
LP/BP
SUB
TWIN
OFF
ON
BLUE / WHITE
LOG0
22


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