15
OWNER’S MANUAL
AV quattro
/
Input Configuration
8.2
SETTING UP FILTERS
The AV quattro amplifier has a filter section versatile and completely independent between various sections. Once you
choose a configuration you can easily adjust each pair of channels to your liking, allowing for a user-friendly set-up.
4 Ch
IN B
IN B
IN (A)
OFF
ON
IN B
IN (A)
OFF
ON
A
Ch
A
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
FILTER
A
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
B
Ch
A
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
FILTER
B
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
A
Ch
AMP
STEREO
STEREO
STEREO
STEREO
B
Ch
AMP
A
IN
A
IN
PRE OUT
2 Ch
IN B
IN B
IN (A)
OFF
ON
IN B
IN (A)
OFF
ON
A
Ch
A
IN
R
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
FILTER
A
IN
R
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
B
Ch
B
IN
L+R
FULL
Hi-PASS @12 dB
FILTER
B
IN
R
Lo-PASS @24 dB
MONO
MONO
MONO
MONO
A
IN
A
IN
A
Ch
AMP
B
Ch
AMP
PRE OUT
3 Ch
B
Ch
A
IN
L+R
Lo-PASS @24 dB
FILTER
B
IN
L+R
FULL
Hi-PASS @12 dB
B
IN
R
Lo-PASS @24 dB
A
IN
R
FULL
Hi-PASS @12 dB
STEREO
STEREO
STEREO
MONO
MONO
MONO
A
IN
STEREO MONO
A
IN
A
IN
A
IN
A
Ch
AMP
B
Ch
AMP
PRE OUT
IN B
IN B
IN (A)
OFF
ON
IN B
IN (A)
OFF
ON
IN B
IN (A)
OFF
ON
IN B
IN (A)
OFF
ON
A
Ch
A
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
FILTER
A
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
A
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
A
IN
FULL
Lo-PASS @12 dB
Hi-PASS @12 dB
Full
Full
Full
Hi-Pass
Hi-Pass
Hi-Pass
Hi-Pass
Full
Lo-Pass
A
Ch
Config.
1
2
3
4
5
6
B
Ch
4/3 Ch
Full
Hi-Pass
Full
Hi-Pass
A
Ch
Config.
7
8
9
B
Ch
2 Ch
Lo-Pass
Lo-Pass
Lo-Pass
Lo-Pass
Lo-Pass
Lo-pass
mono
In 4/3 mode it is possible to drive the whole amplifier with channel A Left and
Right inputs, or use A inputs for A channels and B inputs for B channels.
9.
MULTIPLIER X1 - X10:
Select
X1
for a filter frequency range of 50 Hz-500 Hz for the channel B crossover.
Select
X10
for a filter frequency range of 500 Hz - 5 kHz for the crossover.
10.
STEREO - MONO MODE:
Select
STEREO
to set channel B stereo outputs. Select
MONO
to configure bridge
outputs. In this setting if you use Ch BR input, choosing Hi-Pass or Lo-Pass filters, the filter slope is 12 dB/Oct.
While if you use Ch BL and Ch BR inputs for the Lo-Pass filter the slope is 24 dB/Oct. BL+ and BR- are
active outputs.
11.
POWER ON:
The green LED indicates that the amplifier is on. If LEDs 11, 12, 13 and 14 are simultaneously lit,
the amplifier will turn off and it will be necessary to contact technical support.
12.
THERMAL:
The red LED indicates the amplifier temperature. It flashes at 60°C and the output power is limited
by 1.5 dB. The flashing frequency increases around 70°C where the output power is limited by 3 dB. The LED
lights up without flashing at about 80°C when the amplifier thermal protection starts operating. The amplifier will
restart at about 70°C.
13.
OVERLOAD:
The orange LED indicates an output overload. It flashes when the output load drops below the
minimum permitted, allowing the amplifier to operate at a lower power. If the load drops below about 0.5
Ω
impedance, the LED will turn on without flashing and activate the amplifier protection. If when listening to music
the sound stops for a while, check if the orange LED flashes; it means there was an overload. Turn the amplifier
off and check speakers and wiring.
14.
SPEAKER:
The yellow LED indicates a fault in the speaker connection. It turns on when a speaker terminal
short-circuits with the vehicle chassis. If when listening to music the sound stops for a while, check if the yellow
LED flashes; it means there was a short-circuit between a speaker terminal and the vehicle chassis.
Turn the amplifier off and check speakers and wiring.
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