OWNER’S MANUAL
AV 5.1k
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10.
PASS MODE (LO-FULL):
Switch to select channel C filter type. Select
FULL
to get a full range output signal.
Select
LO
to get an output signal to drive mono SUBWOOFERS. In this case the output cut-off frequency
should be set by adjusting the LO PASS knob
(see section 11)
.
11.
LO PASS XOVER (50 Hz-150 Hz):
Adjustment of the channel C high-pass filter cut-off frequency.
By turning the knob it is possible to vary the cut-off frequency from 50 Hz to 150 Hz @ 24dB/Oct.
12.
POWER ON:
The green LED indicates that the amplifier is on. If LEDs 12, 13, 14 and 15 are simultaneously lit,
the amplifier will turn off and it will be necessary to contact a service centre.
13.
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.
14.
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.
15.
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.
Full
Full
Full
Full
Full
Hi-Pass
Full
Full
Hi-Pass
Full
Full
Band-Pass
Full
Band-Pass
Hi-Pass
Full
Band-Pass
Full
Full
Full
Full
Full
Lo-Pass
Lo-Pass
Lo-Pass
Lo-Pass
Lo-Pass
Lo-Pass
Hi-Pass
Hi-Pass
Hi-Pass
Hi-Pass
Hi-Pass
Hi-Pass
Hi-Pass
Band-Pass
A
Ch
Config.
1
2
3
4
5
6
7
8
9
10
11
12
B
Ch
C
Ch
A
Ch
A
IN
A
IN
B=PRE OUT
A
IN
B=PRE OUT
MIX
A+B IN
MIX
A+B IN
B
Ch
C
Ch
A
IN
A
IN
C
IN
A
IN
B
IN
C
SUB IN
B
IN
IN B
IN (A)
PREOUT
ON
IN C
IN (A+B)
PREOUT
ON
IN B
IN (A)
PREOUT
ON
IN C
IN (A+B)
PREOUT
ON
IN B
IN (A)
PREOUT
ON
IN C
IN (A+B)
PREOUT
ON
IN B
IN (A)
PREOUT
ON
IN C
IN (A+B)
PREOUT
ON
When using INPUT C with a stereo signal, an adder
MIX A+B will be applied to C Ch SUB amplified output
since the specific amplifier is monophonic. If you are
already exploiting a mono signal, you can use either
one of the two RCA connectors called C Ch.
It is possible to drive the whole amplifier with channel
A left and right inputs, or refer to the table below:
Input Configuration
8.2
SETTING UP FILTERS
The AV 5.1k 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.
8