Specifications
AXL1050.4 / AXL1450.4 / AXL4050.4 4 CHANNEL AMPLIFIER APPLICATIONS
4 CHANNEL FULL RANGE SYSTEM
2 or 3 CHANNEL FULL RANGE SYSTEM
Crossover frequency control checklist:
Here we show how to use the 4 channel amplifiers as straight forward discrete 4 channel
Channels 1/2:
full range units.
- HI PASS: N/A
- LOW PASS: N/A
Interconnect cable checklist:
- Connect the four inputs of the amplifier to a Radio/CD with quality RCA cables.
Channels 3/4:
- HI PASS: N/A
Switch setting checklist:
- LOW PASS: N/A
- 1/2CH X-OVER: FULL
- 3/4CH X-OVER: FULL
Level control checklist:
“Setting up systems after installation for best performance”
MODE:
- Refer to the section
- 4 CHANNEL
Minimum final loudspeaker impedances:
- 2-Ohms per channel.
Crossover frequency control checklist:
Here we show how to use the 4 channel amplifiers as full range 2 or 3 channel units by
Channels 1/2:
taking advantage of the mono bridging capability of all Autotek amplifiers.
- HI PASS: N/A
The following example shows how to create a 3 channel system by mono bridging
- LOW PASS: N/A
channel pair 1 / 2. In order to create a 2 channel system, simply follow the example to
also mono bridge channel pair 3 / 4.
Channels 3/4:
- HI PASS: N/A
Interconnect cable checklist:
- LOW PASS: N/A
- Connect the inputs of channel pair 3 / 4 to a suitable stereo source, e.g. a head unit
with good quality RCA cables.
TIP: If you are using the mono sub bass output of an active crossover, there is nothing
- A MONO signal source is required to bridge channel pair 1 / 2, such as would be
wrong with switching in the low pass filter in these amplifiers for a steeper low pass
available from the mono sub bass output of an active crossover, whether standalone,
rolloff.
or built into a head unit or equalizer.
Important: Do not be tempted to connect the hot, or positive outputs, from any source
Level control checklist:
together to obtain a mono signal, as this could very well damage the output stage of
- Refer to the section “Setting up systems after installation for best performance”
that source.
- It is necessary to feed the SAME signal to both left and right inputs via a Y-adapter
Minimum final loudspeaker impedances:
RCA cable.
- 2-Ohms per channel in stereo mode.
- Connect the mono speaker positive terminal to the CH1 +, and its negative terminal
- 4-Ohms mono bridged.
to CH2 - as shown.
Switch setting checklist:
- 1/2CH X-OVER: FULL
- 3/4CH X-OVER: FULL
- MODE: 3 CHANNEL
5
1 MONO
1 STEREO
FULL RANGE
LINE INPUTS
REMOTE TURN-ON
REMOTE TURN-ON
CHASSIS GROUND
CHASSIS GROUND
TO BATTERY + 12 volts VIA FUSE
TO BATTERY + 12 volts VIA FUSE
GND REM +12V
GND REM +12V
FULL RANGE
STEREO LINE INPUTS
MODE
X-OVER
X-OVER
2CH 3CH 4CH
FULL
FULL
HPF
HPF
LPF
LPF
CH3
CH4
CH1
CH2
INPUT
OUTPUT
INPUT
GND
CH1
GND
CH2 CH3 CH4
HIGH INPUT
BASS EQ
0dB
12dB
6V 0.2V
6V 0.2V
30Hz
250Hz
LPF
60Hz
1.2kHz
HPF LEVEL
CHANNEL 1/2
LEVEL
BASS EQ
0dB
12dB
HPF LPF
CHANNEL 3/4
60Hz
1.2kHz
30Hz
250Hz
MODE
X-OVER
X-OVER
2CH 3CH 4CH
FULL
FULL
HPF
HPF
LPF
LPF
CH3
CH4
CH1
CH2
INPUT
OUTPUT
INPUT
GND
CH1
GND
CH2 CH3 CH4
HIGH INPUT
BASS EQ
0dB
12dB
6V 0.2V
6V 0.2V
30Hz
250Hz
LPF
60Hz
1.2kHz
HPF LEVEL
CHANNEL 1/2
LEVEL
BASS EQ
0dB
12dB
HPF LPF
CHANNEL 3/4
60Hz
1.2kHz
30Hz
250Hz
BRIDGED
BRIDGED
BRIDGED
BRIDGED
- CH1 + - CH2 +
- CH1 + - CH2 +
- CH3 + - CH4 +
- CH3 + - CH4 +
FULL RANGE
SPEAKERS
FULL RANGE
SPEAKERS CH3/4
MONO SPEAKER
OR SUBWOOFER CH1/2