7
QUATTRO
2
, QUATTRO PLUS
2
& QUATTRO XL
2
4 Channel Input & Output Connection
GRO UND (G ND) & POWER (+12 V) -
The power and ground will accommodate 0 or 4 AWG
wire. Use high quality pure copper wire only.
REMOTE (REM) -
REM connector will accept wire sizes from12 to 18 AWG.
This terminal is used to remotely turn-on and turn-off the
amplifier when +12 V DC is applied.
FUSE -
ATC fuse is built-in. If needed, use external fuses.
SPEAKER TERMINAL BLOC K -
Connect speaker cables from speaker terminal block to
subwoofers. Subwoofers impedance should be checked
carefully.
RCA INPU TS -
The RCA inputs ensure the highest quality contacts and
the lowest noise in your audio system.
RCA O UTPUTS -
The RCA outputs connect another amplifier for multi car
amplifiers system.
GAIN -
This adjusts the normal operating level of the amplifier by
m
atching the level from the headunit.
HPF -
Controls the high pass cutoff point for the speaker
outputs. HPF can be selected with X-over switch located
next to it.
X-OVER ( MULTIPLY, BANDPASS ) -
Controls and switches select mode and frequency.
Multiply selector (x1, x10) multiplies crossover frequency
times 10. So if you need a 200Hz - 8KHz for HPF, 500Hz -
8KHz for LPF crossover point for delicate tweeters and
midranges set the switch to the x10 setting.
When setting HPF on/off switch to off position, then you
get band-pass by adjusting LPF control.
LPF -
Controls the low pass cutoff point for the speaker outputs.
LPF can be selected with X-over switch located next to it.
POWER & PROTEC T IND ICATORS -
When the unit is powered on and operating correctly the
power LED illuminates. When the unit is malfunction or
faulty, the protect LED is on.
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