Autotek SM1400.4, Instructions Manual

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3
SM1600.2 2 CHANNEL AMPLIFIER APPLICATIONS
4. MODE: This is the most basic application for the SM Series 2 channel amplifiers.
Should be in the STEREO position.
5. Line Level:
1. Interconnect cable checklist:
Connect the LINE INPUTS to the Radio/CD with good quality RCA cables. Refer to the section “Setting up systems after installation for best performance”
2. Crossover Switch:
The X-OVER switch must be in the FULL position. NOTE: Minimum final loudspeaker impedances:
3. Crossover frequency control checklist: 4 & 2 Ohms stereo mode or 4-Ohms mono mode
N/A for full range operation. This amplifier will not do 1 Ohm stereo or 2/1 Ohm mono operation.
FULL RANGE STEREO
MONO
This application illustrates the basic mono bridging method for all Autotek
Switch setting checklist: amplifiers.
- The AMPLIFIER X-OVER switch should be in the LPF position and the MODE
MONO Interconnect cable checklist: should be in the position.
A MONO signal source is required, such as would be available from the mono
sub bass output of an active crossover, whether stand alone, or built into a head
Crossover frequency control setting checklist:
Important: LPF: 11 o’clock unit or equalizer. Do not be tempted to connect the hot, or positive
outputs, from any source together to obtain a mono signal, as this could very well
damage the output stage of that source.
Minimum final loudspeaker impedance:
It is necessary to feed the SAME signal to both left and right inputs via a Y-adapter - 4 ohm mono.
RCA cable. Connect the mono speaker positive terminal to the RIGHT -, and its
negative terminal to LEFT +.
The HIGH LEVEL inputs are used when the radio/CD player does not have RCA cable outputs. You can connect the radio/CD player speaker wires directly to the
amplifier via the high Level Inputs.
GRAY: CH 1 Speaker Input +
BROWN: CH 1 Speaker input -
Black: Chassis Ground
GREEN: CH 2 Speaker Input -
White: CH 2 Speaker Input + ORANGE: CH 3 Speaker Input +
PINK: CH 3 Speaker input -
Black: Chassis Ground
BLUE: CH 4 Speaker Input -
YELLOW: CH 4 Speaker Input +
Use this connector for 2 CH amplifiers
Use both connectors for 4 CH amplifiers
LINE OUT LINE INPUT
LINE OUT LINE INPUT
R R
R R
L
L
L
L
+ - gnd - +
+ - gnd - +
HI INPUT
HI INPUT
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL
BASS EQ HPF LPF
LEVEL
BASS EQ HPF LPF
FULL
LPF HPF MONO STEREO
FULL
LPF HPF MONO STEREO
X-OVER MODE
X-OVER MODE
FULL RANGE
STEREO LINE INPUT
POWER INPUT
POWER INPUT
GND REM BA
TT+12V
GND REM BA
TT+12V
SPEAKER OUTPUT
SPEAKER OUTPUT
LEFT RIGHT
LEFT RIGHT
+ - + -
+ - + -
BRIDGED
BRIDGED
FUSE
FUSE
POWER
POWER
PROTECT
PROTECT
REMOTE TURN-ON
REMOTE TURN-ON
CHASSIS GROUND
CHASSIS GROUND
TO B12v
VIA FUSE
TO B12v
VIA FUSE
FULL RANGE
SPEAKERS
-20 -10 -6 -10 dB +3dB
POWER LEVEL
FRONT
-0 10 25 50 65 80 100%
-20 -10 -6 -10 dB +3dB
POWER LEVEL
REAR
-0 10 25 50 65 80 100%
-20 -10 -6 -10 dB +3dB
POWER LEVEL
FRONT
-0 10 25 50 65 80 100%
-20 -10 -6 -10 dB +3dB
POWER LEVEL
REAR
-0 10 25 50 65 80 100%
FULL RANGE
MONO LINE INPUT
VIA Y-ADAPTER
FROM MONO SOURCE
MONO SPEAKER