Autotek M4000.1 Instruction Manual
EVOLUTION OF POWER
R
AMPLIFIERS
M1600.2 / M3200.2
M1000.4 / M1400.4 / M2000.4
M1500.1D / M2500.1D / M4000.1D
MEAN MACHINE AMPLIFIERS
Autotek is proud to introduce the finest high end car audio products available and would like to thank you for your continued support.
The Mean Machine Series products have been designed to a very high level of performance, with features unavailable in any other products.
All of the amplifiers have variable crossovers built in, with added touches such as subsonic filter (mono amps), bass equalization and a bass
remote control module (mono amps) that allows bass control from with in reach of the drivers seat.
To insure years of listening pleasure, all amplifiers have a built in diagnostic mode that will detect shorted speaker leads, low impedance,
dangerous high temperatures, DC shorts and will shut down the amp to help prevent serious damage.
General Installation Procedures.....................................................................................................................................................................................1
- Mounting the amplifier / Wiring Requirements
Amplifier Feature Descriptions.......................................................................................................................................................................................2
M1600.2 / M3200.2 / 2-CHANNEL AMPLIFIER APPLICATIONS...................................................................................................................................3
- Full range stereo / Full range mono / 2 way active with mono bass using two 2 channel models
M1000.4 / M1400.4 / M2000.4 / 4-CHANNEL AMPLIFIER APPLICATIONS...............................................................................................................4-5
- Full range stereo / 3 channel full range system
M1500.1D / M2500.1D / M4000.1D / 1-CHANNEL AMPLIFIER APPLICATIONS..........................................................................................................6
- Basic mono amplifier application
Features and Specifications...........................................................................................................................................................................................7
Setting Up Systems After Installation For Best Performance.....................................................................................................................................8
Troubleshooting and Diagnostics..................................................................................................................................................................................9
Product Warranty...........................................................................................................................................................................................................10
Available Optional Equipment
ATK2/3X
2-Way / 3-Way Active Crossover with Remote Bass Control
- 2 & 4 channel inputs / Sub-Input for receivers with Sub Outputs / Bass Remote offers 12dB Bass Boost / Adjustable Level Output to 8.5 volts /
- 180 degree Phase Shift / 45Hz Bass Boost with Quasi-Parametric EQ / Level (gain) adjustments for front, rear and sub outputs / 2nd Order Butterworth
- Hi-Pass for front and rear channels
7007
4-Band EQ / 9 Volt Line Driver Signal Processor
- 4 band EQ and Line Driver / Dual Inputs with Level Matching / DIN, ISO Mount chassis / EQ controls with 12dB of Bass Boost - cut 45Hz Sub Bass - 120Hz
- Mid Bass - 2.2KHz Mid Range - 12KHz Treble / Master Volume and Subwoofer Volume / Front to Rear dual amp Fader / High Pass F/R Crossover - 12dB
Slope / Selectable Subwoofer Output - 50Hz - 80Hz - 120Hz at 18dB Slope
Check out our videos of new products,
events and technical tutorials at
www.youtube.com/maxxsonicsusainc
The contents of this manual may not be reproduced or copied with out the
written consent of MAXXSONICS USA, Inc.
GENERAL INSTALLATION PROCEDURE
System Design
The success of any car stereo system relies on several factors, such as the system design, execution of the installation, and system setup. Please
remember that any system is only as good as its weakest link.
Please remember that higher power systems are not necessarily useful purely for high sound pressure levels, but also to establish a headroom capability, to
reproduce musical peaks cleanly without distortion. Lower power amplifiers will clip earlier than their more powerful cousins, and cause loudspeaker failure when
overdriven, due to the harmonics generated by a clipped signal, thus overheating voice coils.
Amplifiers should be mounted with the fins running horizontally for best convection cooling, to minimize overheating. Purchase the best quality RCA cables you can
afford, for reliability and less engine noise interference in the audio system.
Installation
WOOD
It is highly recommended that the amplifier be mounted to a board of MDF or other solid
structure using the 4 mounting screws provided. Avoid mounting the
amplifier to metal as this can introduce noise and other unwanted issues. When mounting
the amplifier, ensure that it is mounted HORIZONTALLY, as shown in the diagram above, for
optimal heat dissipation. Mounting amplifiers to speaker enclosures is not recommended as
this can cause damage to the amplifier components. When choosing a location for
mounting the amplifier, ensure that you check for clearance from wires, gas tank, electrical
devices and brake lines etc.
General:
Run the wiring so that RCA cables are at least 18“ away from power and speaker cables. Keep RCA cables away from electrical devices in the vehicle that can cause
electrical noise, such as electric fuel pumps, emission control modules and other on-board electronic modules.
Power and ground connections(see the features matrix on page 7 for proper gauge cables per amplifier):
Use a sufficient gauge power cable and ground cable using the chart below as reference to what size wire you require. In a multi amplifier system, add the total value
of the manufacture recommended fusing to get your total system amperage. Some applications may require multiple runs of power wire to meet the system
requirements. In multi amplifier systems it is advisable to mount a large enough fuse right at the battery, and run one or multiple +12 volt power cables to a fused
distribution block near the amplifiers. It is then a simple matter to connect the +12 volt terminal of each amplifier to the distribution block. During this process, please
ensure that the main power fuse is removed to avoid shorting the electrical system. The main fuse must be within 12” of the vehicles battery.
Ground each amplifier with as short a ground lead as possible directly to the vehicle chassis using the same wire size as the amplifiers’ power wire. Use a ground
distribution block, if you wish, but it is extremely important to keep the main ground lead from this distribution block to the chassis as short as possible , not more than
12“. The ground connection integrity to the chassis is very important, and the best way to achieve a good, solid electrical and mechanical contact is to use a large
round crimp lug, crimped and soldered to the ground cable. The next step is to scrape the paint off the vehicle chassis , slightly larger than the ground lug, at the
connection point. Drill a clearance hole in the chassis, the same size as the lug hole, and use a bolt, spring washer and nut to securely fasten the ground lug. Use
petroleum jelly to coat the bolt/lug connection, to prevent oxidization with time.
TIP: Use the same approach when installing head units, equalizers or any audio equipment for that matter - run short individual grounds from each piece directly to
the vehicle chassis, to minimize ground loops and system noise. All power, ground and speaker connections should be crimped and soldered for reliability. Make sure
that none of the cable insulation can chafe against exposed metal in the vehicle, causing short circuits to the chassis.
WIRE LENGTH
SYSTEM
AMPERAGE
35-50
50-65
68-85
85-105
105-125
125-150
7-10 ft. 10-13 ft. 13-16 ft.
8
6
4
4
4
2
6
4
4
2
2
0
16-19 ft. 19-22 ft. 22-28 ft.
4
4
2
2
0
0
4
4
2
2
0
0
4
4
2
2
0
0
4
2
0
0
0
0
NOTE: This Matrix is a general rule
of thumb. Please refer to the
WIRE GAUGE
manufacturers specific
requirements. Mean Machine
specifications can be found on
page 7.
Safe connection sequence:
After all cables are run, connect speaker wires to the speakers and amplifiers, then run and plug in RCA cables. Next, connect all power, ground, and remote turn on
leads. Now connect all +12 volt cables to the amplifier/s and distribution blocks and fuse holders. Finally, connect the main +12 volt cable to the battery, with the main
fuse removed, and we are almost ready to power up the system.
Power up the system:
The following procedure may seem like overkill, but there is nothing more frustrating when turning on a system for the first time, and it does not work properly
immediately.
First, make sure the head unit is off, and turn all level controls to minimum (counterclockwise), including the head unit volume control. Set all equalizers to 0 dB (no
boost), and all crossover frequency controls at approximate frequencies, as recommended by the loudspeaker manufacturer. Set all input selector and crossover
switches as required for the application. Remove all amplifier fuses, and insert the main fuse at the battery. If the fuse does not blow, you can insert the fuse in one of
the amplifiers, and we are ready to turn on the system. Turn the head unit on, insert a CD, or select a radio station, and increase the head unit volume control. If the
system sounds fine, turn off the head unit, and install fuses in the remaining amplifiers, one by one, till the complete system is powered up and functioning properly.
1
AMPLIFIER FEATURE DESCRIPTIONS
MEAN MACHINE AMPLIFIERS:
- Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged - All Autotek amplifiers feature a comprehensive diagnostic system, with speaker lead
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.
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.
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.
M1600.2 / M3200.2 2-CHANNEL AMPLIFIERS
OUTPUT INPUT
L L
R R
LEVEL BASS EQ X-OVER HPF LPF MODE
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 13KHz 30Hz 250Hz MONO STEREO
POWER
PROTECT
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
R R
L L
LEVEL BASS EQ X-OVER HPF LPF
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 13KHz 30Hz 250Hz
LEVEL BASS EQ X-OVER HPF LPF MODE
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 13KHz 30Hz 250Hz 2 3 4
POWER
PROTECT
LINE OUTCH3/4 CH1/2
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.
-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
M1500.1D / M2500.1D / M4000.1D MONO BLOCK AMPLIFIERS
OUTPUT INPUT
L L
R R
LEVEL BASS EQ REMOTE SUBSONIC LOW PASS
6V 0.2V 0dB 10dB 15Hz 35Hz 30Hz 250Hz
POWER
PROTECT
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.
M1600.2 / M3200.2 2 CHANNEL AMPLIFIER APPLICATIONS
FULL RANGE STEREO
This is the most basic application for the Mean Machine Series 2 channel
amplifiers.
1. Interconnect cable checklist:
Connect the LINE INPUTS to the Radio/CD with good quality RCA cables.
2. Crossover Switch: NOTE: Minimum final loudspeaker impedances:
The X-OVER switch must be in the FULL position. 4 & 2 Ohms stereo mode or 4-Ohms mono mode
3. Crossover frequency control checklist: This amplifier will not do 1 Ohm stereo or 2/1 Ohm mono operation.
N/A for full range operation.
FULL RANGE
STEREO LINE INPUT
R R
L L
OUTPUT INPUT
LEVEL BASS EQ X-OVER HPF LPF MODE
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz MONO STEREO
POWER
PROTECT
4. MODE:
Should be in the STEREO position.
5. Line Level:
Refer to the section
“Setting up systems after installation for best performance”
BRIDGED
RIGHT LEFT
SPEAKER OUTPUT
- + - +
FUSE
POWER INPUT
GND REM BATT+12V
FULL RANGE
SPEAKERS
TO BATTERY +12v
VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
MONO
This application illustrates the basic mono bridging method for all Autotek
amplifiers.
Interconnect cable checklist:
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
unit or equalizer. Important: 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.
It is necessary to feed the SAME signal to both left and right inputs via a Yadapter RCA cable. Connect the mono speaker positive terminal to the LEFT +,
and its negative terminal to RIGHT -.
FULL RANGE
MONO LINE INPUT
VIA Y-ADAPTER
FROM MONO SOURCE
R R
L L
OUTPUT INPUT
LEVEL BASS EQ X-OVER HPF LPF MODE
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz MONO STEREO
Switch setting checklist:
- The AMPLIFIER X-OVER switch should be in the LPF position and the MODE
should be in the MONO position.
Crossover frequency control setting checklist:
LPF: 11 o’clock
Minimum final loudspeaker impedance:
- 4 ohm mono.
FULL RANGE
MONO SPEAKER
BRIDGED
RIGHT LEFT
SPEAKER OUTPUT
- + - +
FUSE
POWER
PROTECT
POWER INPUT
GND REM BATT+12V
TO BATTERY +12v
VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
3
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