Interconnetion Example 4-Channel-Mode: 1 X Stereo System (Front) And 1 X Stereo System (Rear) - Crunch GTX 2400 Owner's Manual

G T X 4 6 0 0 - G T X 4 8 0 0
INTERCONNECTION EXAMPLE 4-Channel Mode: 2 x Stereo System (Front & rear)
Loudspeaker
front / left
2 – 8 Ohms
Loudspeaker
rear / left
2 – 8 Ohms
INTERCONNECTION
• Connect the RCA lineouts of the headunit with the RCA jacks LINE INPUT 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 -).
• Ensure by any means, that the total impedance load of all speakers 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 headunit available, connect
the CH1/2 RCA line inputs and select the 2CH position.
CROSSOVER SETTINGS CH1/2 & CH3/4
• By using bigger speakers (more than 20cm) you can set the X-OVER switch to the FULL position (Full Range Signal).
• By using smaller speakers (8.7cm - 16cm) you must 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 HIGH PASS controller and should be set between
60Hz to 150Hz, depending on the size of the speakers.
• The LOW PASS Controller is not in use in this interconnecting example.
LEVEL INPUT CONTROLLER CH1/2 & CH3/4
• Turn the LEVEL INPUT controller of the amplifier to the 4V position.
• Turn the volume controller of the headunit to 80 - 90% of its full setting.
• Turn the LEVEL INPUT controller clockwise until you hear some distortion.
• Then turn back the LEVEL INPUT 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.
REFERENCE 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.
Loudspeaker
Connect the stereo RCA output (FL/FR and
front / right
RL/RR) of the headunit with LINE INPUTS
2 – 8 Ohms
Switch position CH1/2 = HP or FULL
and CH3/4 = HP or FULL
Loudspeaker
rear / right
2 – 8 Ohms
2 5
CH1/2 and CH3/4 of the amplifier
INPUT MODE = 4 CH
TWIN SUB = OFF
RL RR FR FL