Interconnection Examples; 4-Channel-Mode: 1 X Stereo-System (Front) And 1 X Stereo-System (Rear) - Hifonics Vulcan VXi9404 Owner's Manual

VXi6404
X-OVER LP
MODE
LP HP FULL
30Hz
PROTECT
INPUT MODE

4-channel-mode: 1 x Stereo-System (Front) and 1 x Stereo-System (Rear)

BASS LEVEL
CONTROLLER
POWER
4CH 2CH
VXi6404
GND REM +12V
POWER INPUT
Loudspeaker Loudspeaker
left, front right, front
2 – 8 Ohms 2 – 8 Ohms
INTERCONNECTION
• Connect the RCA lineouts of the head unit with the RCA jacks LINE IN of the amplifier 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 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 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 amplifier 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.
NOTE
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.
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FUNCTIONAL INSTRUCTIONS
INTERCONNECTION EXAMPLE
CH3/4
LINE OUT
CH2 LINE IN CH4
BASS BOOST HP LEVEL
250Hz 0dB 12dB 10Hz 1.2kHz MIN MAX
4CH MONO MIX
X-OVER MODE
DUPE HP FULL
10Hz 1.2kHz MIN MAX
CH1 CH3
CH1/2
BRIDGED BRIDGED
FUSE
CH1 CH2 CH3 CH4
SPEAKER OUTPUT
Loudspeaker
left, rear
2 – 8 Ohms
VXi6404
HP or FULL
HP or FULL
Loudspeaker
right, rear
2 – 8 Ohms
Connect stereo RCA outputs (FL/FR & RL/RR)
of the head unit with LINE IN CH1 / CH2 and
4CH
CH3/4
X-OVER CH2
LP BASS BOOST HP LEVEL
MODE
LP HP FULL
30Hz 250Hz 0dB 12dB 10Hz 1.2kHz MIN MAX
PROTECT
INPUT MODE X-OVER MODE
BASS LEVEL
CONTROLLER POWER
4CH 2CH DUPE HP FULL
10Hz 1.2kHz MIN MAX
CH1
CH1/2
VXi6404
BRIDGED
FUSE
GND REM +12V
CH1 CH2 CH3
POWER INPUT SPEAKER OUTPUT
CH3 / CH4 of the amplifier
LINE OUT
LINE IN
CH4
4CH MONO MIX
CH3
BRIDGED
CH4