CH 4
CH 3
LINE INPUT LINE OUTPUT
CH 2
CH 1
R
L
BASS BOOST LOW PASS
0dB 18dB 30Hz 150Hz
CH 1/2
LOGO
BADGE
WHITE
BLUE
TWIN
SUB
ON
OFF
BASS BOOST HI PASSLOW PASS LEVEL
0dB 18dB 10Hz 1.2 kHz30Hz 150Hz 6V 0.2V
CH 3/4
REMOTE
PROTECT POWER
INPUT MODE
4 CH 2 CH
X-OVER
X-OVER
HI PASS LEVEL
10Hz 1.2 kHz 6V 0.2V
LP/BP HP FULL
LP/BP HP FULL
4-CHANNEL AMPLIFIERS: ZXi4404 / ZXi6404 / ZXi9404
26
INTERCONNECTION EXAMPLE 2-Channel Mode: 2 x Mono Subwoofer bridged
INTERCONNECTION
• Connect the RCA lineouts of the headunit with the RCA jacks LINE INPUT CH 1 and CH 2 of the amplifier with appropriate high-value
RCA cables. If a separate SUB OUT from your headunit is available, use this as LINE OUT.
• Connect the subwoofers with the SPEAKER OUTPUTS CH1/2 + Mono Bridged - and CH3/4 + Mono Bridged -.
• Ensure by any means, that the total impedance load of all subwoofers per channelpair is not lower than 4 ohms. Too low impedance
cause high temperature and will shut down the amplifier 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 2CH position on the INPUT MODE switch.
CROSSOVER SETTINGS & BASS BOOST CONTROLLER
• The X-OVER switch must be in position LP/BP and the TWIN SUB switch in position ON.
All filter controllers (BASS BOOST, HI PASS, LOW PASS, LEVEL) of CH 1/2 are without function in TWIN SUB mode.
LEVEL CONTROLLER CH3/4 (SUBWOOFER 1+2)
• Attend the regarding notes on page 23.
• All LEVEL CONTROLLERS of CH1/2 are without function.
TWIN SUB & BASS REMOTE CH1/2 (SUBWOOFER 1) & CH3/4 (SUBWOOFER 2)
• The enclosed BASS REMOTE controller adjusts the bass-level e.g. from the driver’s seat.
That this BASS REMOTE controller is effective on both channel pairs (CH1/2 & CH3/4) you MUST set TWIN SUB switch in
position ON. Please use only the enclosed bass remote controller and cable.
• Is the TWIN SUB switch on position ON, the controllers BASS-EQ, HI PASS, LOW PASS, LEVEL on CH1/2 are without function.
All settings will be synchronized with CH3/4. In switch position OFF, the bass remote works only on CH3/4.
Connect Stereo RCA output (L/R or SUB OUT)
of the headunit with the LINE INPUT CH1/2 of the amplifier
Subwoofer 2
4 – 8 Ohms
Connect the bass remote
controller and the
remote terminal on the amplifier
with the enclosed cable.
Subwoofer 1
4 – 8 Ohms
Do not connect loudspeaker cables with the vehicle’s chassis.
Always ensure the correct polarity of all connections.
REFERENCE NOTE
Use the bass enhancement with care.
A high bass boost may cause damage to your speakers and hearing abilities.
L R
Switch position CH3/4 = LP/BP
TWIN SUB = ON
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