Quantum Audio QS4250 Stereo Amplifier User Manual


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FOUR CHANNEL CONNECTIONS:
FLOATING GROUND RADIO (MOST COMMON TYPE)
BASS
LEVEL
ch3
R
L
ch1
ch2
ch3-4
ch1-2
LINE INPUT
ch4
+ - GND - +
+ - GND - +
HI
INPUT
OUTPUT
5v
5v
.2v
.2v
0dB 60Hz 30Hz
60Hz
1.2KHz
1.2KHz
0dB
12dB
12dB
HPF
LPF
MODE
X-OVER
full
full
hpf
hpf
lpf
lpf
2 3 4
EQ
30Hz250Hz
250Hz
RIGHT +RIGHT +
RIGHT -RIGHT -
LEFT -LEFT -
LEFT +LEFT +
BROWNBROWN
GRAYGRAY
(NOT USED)(NOT USED)
GREENGREEN
BLACK (GROUND)BLACK (GROUND)
WHITEWHITE
RIGHT +RIGHT +
RIGHT -RIGHT -
LEFT -LEFT -
LEFT +LEFT +
BROWNBROWN
GRAYGRAY
(NOT USED)(NOT USED)
GREENGREEN
BLACK (GROUND)BLACK (GROUND)
WHITEWHITE
94.794.7
FOUR CHANNEL CONNECTIONS:
COMMON GROUND RADIO (MOST COMMON TYPE)
BASS
LEVEL
ch3
R
L
ch1
ch2
ch3-4
ch1-2
LINE INPUT
ch4
+ - GND - +
+ - GND - +
HI
INPUT
OUTPUT
5v
5v
.2v
.2v
0dB 60Hz 30Hz
60Hz
1.2KHz
1.2KHz
0dB
12dB
12dB
HPF
LPF
MODE
X-OVER
full
full
hpf
hpf
lpf
lpf
2 3 4
EQ
30Hz250Hz
250Hz
RIGHT +RIGHT +
LEFT +LEFT +
BROWNBROWN
GRAYGRAY
GREENGREEN
BLACKBLACK
WHITEWHITE
RIGHT +RIGHT +
LEFT +LEFT +
BROWNBROWN
GRAYGRAY
(NOT USED)(NOT USED)
(NOT USED)(NOT USED)
(NOT USED)(NOT USED)
GREENGREEN
BLACKBLACK
WHITEWHITE
94.794.7
GROUNDGROUND
GROUNDGROUND
(NOT USED)(NOT USED)
14
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