MB QUART MB QUART Nano NSC 2100, Installation Manual

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INTERCONNECTION EXAMPLE 2-Channel Mode: 2 x Mono Subwoofer bridged
INTERCONNECTION
• Connect the RCA lineouts of the headunit with the RCA jacks LINE INPUT. All LINE INPUT jacks must be connected (CH1/CH2/CH3/CH4).
Therefor you need to use two Y-connectors to splice the audio signal. If a separate SUB OUT from your headunit is available, use this
as LINE OUT.
• Connect the subwoofers with the SPEAKER OUTPUTS CH1/2 + BRIDGED - and CH3/4 + 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.
CROSSOVER SETTINGS CH1/2 & CH3/4 (SUBWOOFER 1 & SUBWOOFER 2)
• In the mono/subwoofer mode the X-OVER switch must set to the LP/BP position (Lowpass/Bandpass mode), thereby the higher
frequencies will be eliminated. The cut-off frequency ist adjustable with the LOW PASS controller and should be set between
60 to 100 Hz, depending on the size of the subwoofer.
• In the lowpass mode (LP/BP) the HIGH PASS controller works also as subsonicfilter, that eliminates the ultra-low, not hearable and
harmful frequencies to generate a bandpass signal (Bandpass mode). The subsonic frequency should be set between 15 to 40 Hz,
depending on the size of the subwoofer. NOTE: If this value is higher than the lowpass setting, no sound is hearable.
LEVEL CONTROLLER CH1/2 & CH3/4 (SUBWOOFER 1 & SUBWOOFER 2)
• Turn the INPUT LEVEL controller of the amplifier to the 6V position.
• Turn the volume controller of the headunit to 80 - 90% of its full setting.
• Turn the INPUT LEVEL controller clockwise until you hear some distortion.
• Then turn back the INPUT LEVEL controller slightly until you hear a cleaner sound.
BASS BOOST CONTROLLER CH1/2 & CH3/4 (SUBWOOFER 1 & SUBWOOFER 2)
• The BASS BOOST controller adjusts the bass enhancement between 0db and +12dB.
• A too high bass boost may cause clipping/distortion and damage on the loudspeakers and also may harm your hearing abilities.
Use this controller carefully!
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SPEAKER OUTPUT
CH1 CH2 CH3 CH4
BRIDGED BRIDGED
POWER INPUT
GND REM FUSE 12V
POWER
PROTECT
CH1/CH2
CH3/CH4
LOW PASS BASS BOOST INPUT LEVEL HIGH PASS
X-OVER
LP/BP FULL
HP
LOW PASS BASS BOOST INPUT LEVEL HIGH PASS
X-OVER
LP/BP FULL
HP
LINE INPUT OUTPUT
R
L
CH1 CH3
CH2 CH4
30Hz 150Hz 0dB 12dB 6V 0.2V 10Hz 150Hz
30Hz 150Hz 0dB 12dB 6V 0.2V 10Hz 150Hz
Connect Stereo RCA output (L/R or SUB OUT)
of the headunit with the LINE INPUT L/R of
the amplifier by using two Y-connectors
Subwoofer 1
4 – 8 Ohms
L R
Switch position LP/BP
Switch position
LP/BP
Y-Connectors
Subwoofer 2
4 – 8 Ohms
I N T E R C O N N E C T I O N E X A M P L E S
NSC475