Amplifier Feature Descriptions - Autotek M1400.4 User Manual

AMPLIFIER FEATURE DESCRIPTIONS

MEAN MACHINE AMPLIFIERS:
- Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged
operation except the mono amps which are capable of 4, 2 and 1-Ohm loads.
- Tri-Mode operation with any stereo pair of amplifier channels is possible, as with all
bridgeable amplifiers.
- The input sensitivities for rated output powers are variable from 0.2 volts to 6 volts.
- All crossovers are fully variable in their respective ranges.
- Crossover filters are 12dB/Octave.
- A POWER LED indicates the powered up and turned on condition.
The X-OVER slide switch selects the internal crossover functions:
-The input signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting
simplifying daisy chaining of amplifiers.
-HPF: Selects the built in HIGH PASS filter, variable from 60 Hz to 13kHz.
-FULL: Bypasses all crossovers for full frequency range operation.
-LPF: Selects the built in LOW PASS , variable from 30 Hz to 250Hz.
MODE: The mode switch allows you to choose Stereo for full range 2 channel operation or MONO
for bridging operation
LINE INPUT: The line input accepts unbalanced (RCA) inputs from 0.2V to 6V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy
chain multiple amplifiers from one signal.
The 4 channel amps have the same features as the 2 channel models accept that there are 2 sets of
controls.
1 set for channels 1 & 2 and 1 set for channels 3 & 4.
In addition, the 4 channel models have a Mode switch which allows you to select 2, 3 or 4 channel
operation. Switch to 2 channel if you only have 1 set of RCA's in CH 1/2 and the unit will automatically
supply signal to channels 3/4. Select 3 channel when you only have RCA's in CH 1/2 but plan to run
channels 3/4 bridged. Select 4 channel if you are providing RCA's to channels 1/2 and 3/4.
The X-OVER slide switch selects the internal crossover functions:
-The input signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting
simplifying daisy chaining of amplifiers.
-HPF: Selects the built in HIGH PASS filter, variable from 60 Hz to 13kHz.
-FULL: Bypasses all crossovers for full frequency range operation.
-LPF: Selects the built in LOW PASS , variable from 30 Hz to 250Hz.
MODE: The mode switch allows you to choose Stereo for full range 2 channel operation or MONO
for bridging operation
LINE INPUT: The line input accepts unbalanced (RCA) inputs from 0.2V to 6V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy
chain multiple amplifiers from one signal.
-The LINE INPUT signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER
setting simplifying daisy chaining of amplifiers.
-SUBSONIC: Allows you to adjust the crossover filter from 15Hz to 35Hz.
-LPF: Allows yo to adjust the LOW PASS crossover filter from 30Hz to 250Hz.
LEVEL: Adjusts the input sensitivity from 0.2 volts to 6 volts.
BASS EQ: The Bass EQ is adjustable from 0db to 10dB.
REMOTE: This is the input jack for the remote Level control.
LINE INPUT: The line input accepts unbalanced (RCA) inputs from 0.2V to 6V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy
chain multiple amplifiers from one signal.
2
- All Autotek amplifiers feature a comprehensive diagnostic system, with speaker lead
short circuit, and amplifier DC faults indicated by the red "PROTECT" LED.
CAUTION: DO NOT OPERATE ANY AMPLIFIER BELOW THE INTENDED
IMPEDANCE.. YOU WILL CAUSE DAMAGE TO THE AMPLIFIER THAT WILL NOT BE
COVERED UNDER THE WARRANTY PRINTED IN THE BACK OF THE MANUAL.
Multi-Channel amps are capable of 4 and 2-Ohms wired stereo and 4-Ohms wired
mono bridged. The mono amps are capable of 4, 2 and 1-Ohm.
M1600.2 / M3200.2 2-CHANNEL AMPLIFIERS
OUTPUT INPUT
LEVEL BASS EQ X-OVER
L L
6V 0.2V 0dB 12dB FULL LPF HPF
R R
Note that the LOW PASS signal is MONO.
-In the LPF position, the HIGH PASS filter acts as a subsonic
filter.
-When the LPF mode is selected, a 0 to +12dB, at 45Hz, BASS
-EQ is also switched in.
M1000.4 / M1400.4 / M2000.4 4-CHANNEL AMPLIFIERS
LEVEL BASS EQ X-OVER
CH3/4 CH1/2
6V 0.2V 0dB 12dB FULL LPF HPF
R R
LEVEL BASS EQ X-OVER
L L
6V 0.2V 0dB 12dB FULL LPF HPF
Note that the LOW PASS signal is MONO.
-In the LPF position, the HIGH PASS filter acts as a subsonic
filter.
-When the LPF mode is selected, a 0 to +12dB, at 45Hz, BASS
-EQ is also switched in.
M1500.1D / M2500.1D / M4000.1D MONO BLOCK AMPLIFIERS
OUTPUT INPUT
LEVEL BASS EQ REMOTE SUBSONIC LOW PASS
L L
6V 0.2V 0dB 10dB
R R
The mono amps are capable of 4, 2 & 1-Ohm loads.
Operating the amp below 1-Ohm can cause damage to the
amp not covered in the warranty.
POWER
HPF LPF MODE
PROTECT
60Hz 13KHz 30Hz 250Hz MONO STEREO
HPF LPF
POWER
LINE OUT
PROTECT
60Hz 13KHz 30Hz 250Hz
HPF LPF MODE
60Hz 13KHz 30Hz 250Hz 2 3 4
POWER
PROTECT
15Hz 35Hz 30Hz 250Hz