Autotek M1400.4 User manual

M1600.2 / M3200.2
M1000.4 / M1400.4 / M2000.4
M1500.1D / M2500.1D / M4000.1D
AMPLIFIERS
EVOLUTION OF POWER
R

MEAN MACHINE AMPLIFIERS
Available Optional Equipment
ATK2/3X
2-Way / 3-WayActive 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
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.
INDEX PAGE
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
Troubleshooting and Diagnostics..................................................................................................................................................................................9
Setting Up Systems After Installation For Best Performance.....................................................................................................................................8
Product Warranty...........................................................................................................................................................................................................10
The contents of this manual may not be reproduced or copied with out the
written consent of MAXXSONICS USA, Inc.
Check out our videos of new products,
events and technical tutorials at
www.youtube.com/maxxsonicsusainc

GENERAL INSTALLATION PROCEDURE
1
System Design
Installation
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 RCAcables you can
afford, for reliability and less engine noise interference in the audio system.
General:
Run the wiring so that RCAcables are at least 18“ away from power and speaker cables. Keep RCAcables 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.
Safe connection sequence:
After all cables are run, connect speaker wires to the speakers and amplifiers, then run and plug in RCAcables. 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.
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.
NOTE: This Matrix is a general rule
of thumb. Please refer to the
manufacturers specific
requirements. Mean Machine
specifications can be found on
page 7.
7-10 ft. 10-13 ft. 13-16 ft. 16-19 ft. 19-22 ft. 22-28 ft.
SYSTEM
AMPERAGE
35-50
50-65
68-85
85-105
105-125
125-150
8
6
4
4
4
2
6
4
4
2
2
0
4
4
2
2
0
0
4
4
2
2
0
0
4
4
2
2
0
0
4
2
0
0
0
0
WIRE LENGTH
WIRE GAUGE

AMPLIFIER FEATURE DESCRIPTIONS
MEAN MACHINE AMPLIFIERS:
- Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged -AllAutotek amplifiers feature a comprehensive diagnostic system, with speaker lead
short circuit, and amplifier DC faults indicated by the red “PROTECT” LED.
operation except the mono amps which are capable of 4, 2 and 1-Ohm loads. CAUTION: DO NOT OPERATE ANY AMPLIFIER BELOW THE INTENDED
- Tri-Mode operation with any stereo pair of amplifier channels is possible, as with all IMPEDANCE.. YOU WILL CAUSE DAMAGE TO THE AMPLIFIER THAT WILL NOT BE
bridgeable amplifiers.
- The input sensitivities for rated output powers are variable from 0.2 volts to 6 volts. COVERED UNDER THE WARRANTY PRINTED IN THE BACK OF THE MANUAL.
-All crossovers are fully variable in their respective ranges. Multi-Channel amps are capable of 4 and 2-Ohms wired stereo and 4-Ohms wired
- Crossover filters are 12dB/Octave. mono bridged. The mono amps are capable of 4, 2 and 1-Ohm.
-APOWER LED indicates the powered up and turned on condition.
2
-The LINE INPUT signal is routed directly to the LINE OUT RCAjacks, regardlessof the X-OVER
settingsimplifyingdaisychainingofamplifiers.
-SUBSONIC:Allowsyoutoadjustthecrossoverfilterfrom15Hzto35Hz.
-LPF:AllowsyotoadjusttheLOW PASS crossoverfilterfrom30Hzto250Hz.
LEVEL: Adjuststheinputsensitivityfrom0.2voltsto6volts.
BASS EQ: TheBassEQisadjustablefrom0dbto10dB.
REMOTE: ThisistheinputjackfortheremoteLevelcontrol.
LINE INPUT:Thelineinputacceptsunbalanced(RCA)inputsfrom0.2Vto6V.
LINE OUTPUT:The lineoutputpasses throughsignalfromtheline inputswhichallowsyou todaisy
chainmultipleamplifiersfromonesignal.
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.
M1500.1D / M2500.1D / M4000.1D MONO BLOCK AMPLIFIERS
OUTPUT INPUT
L L
R R
POWER
PROTECT
6V 0.2V 0dB 10dB 15Hz 35Hz 30Hz 250Hz
LEVEL BASS EQ REMOTE SUBSONIC LOW PASS
The4channelampshavethesamefeaturesasthe2channel modelsaccept thatthereare2setsof
controls.
1setforchannels1&2and1setforchannels3&4.
Inaddition, the4 channel modelshave aMode switch whichallows youto select2, 3or 4channel
operation.Switchto2channelifyouonlyhave1setofRCA’sinCH1/2andtheunitwillautomatically
supplysignaltochannels3/4.Select3channelwhenyouonlyhaveRCA’sinCH1/2butplantorun
channels3/4bridged.Select4channelifyouareprovidingRCA’stochannels1/2and3/4.
TheX-OVER slideswitchselectstheinternalcrossoverfunctions:
-The input signal is routed directly to the LINE OUT RCAjacks, regardless of the X-OVER setting
simplifyingdaisychainingofamplifiers.
-HPF: SelectsthebuiltinHIGH PASS filter,variablefrom60Hzto13kHz.
-FULL: Bypassesallcrossoversforfullfrequencyrangeoperation.
-LPF: SelectsthebuiltinLOW PASS ,variablefrom30Hzto250Hz.
MODE:The modeswitch allowsyou tochoose Stereofor full range2 channeloperation orMONO
forbridgingoperation
LINE INPUT:Thelineinputacceptsunbalanced(RCA)inputsfrom0.2Vto6V.
LINE OUTPUT:Thelineoutput passesthroughsignalfromthelineinputswhich allowsyouto daisy
chainmultipleamplifiersfromonesignal.
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
LINE OUTCH3/4 CH1/2
L L
R R 6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 13KHz 30Hz 250Hz
LEVEL BASS EQ X-OVER HPF LPF
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 13KHz 30Hz 250Hz 2 3 4
LEVEL BASS EQ X-OVER HPF LPF MODE
POWER
PROTECT
TheX-OVER slideswitchselectstheinternalcrossoverfunctions:
-The input signal isrouted directly to theLINE OUT RCA jacks, regardless of the X-OVER setting
simplifyingdaisychainingofamplifiers.
-HPF: SelectsthebuiltinHIGH PASS filter,variablefrom60Hzto13kHz.
-FULL: Bypassesallcrossoversforfullfrequencyrangeoperation.
-LPF: SelectsthebuiltinLOW PASS ,variablefrom30Hzto250Hz.
MODE:Themode switchallows youtochoose Stereofor fullrange 2channel operationorMONO
forbridgingoperation
LINE INPUT:Thelineinputacceptsunbalanced(RCA)inputsfrom0.2Vto6V.
LINE OUTPUT:Thelineoutputpassesthroughsignalfromthelineinputswhichallowsyoutodaisy
chainmultipleamplifiersfromonesignal. 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.
M1600.2 / M3200.2 2-CHANNEL AMPLIFIERS
OUTPUT INPUT
L L
R R
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 13KHz 30Hz 250Hz MONO STEREO
LEVEL BASS EQ X-OVER HPF LPF MODE POWER
PROTECT

OUTPUT INPUT
L L
R R
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz MONO STEREO
LEVEL BASS EQ X-OVER HPF LPF MODE POWER
PROTECT
POWER INPUT
GND REM BATT+12V
SPEAKER OUTPUT
RIGHT LEFT
- + - +
BRIDGED
FUSE
OUTPUT INPUT
L L
R R
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz MONO STEREO
LEVEL BASS EQ X-OVER HPF LPF MODE POWER
PROTECT
POWER INPUT
GND REM BATT+12V
SPEAKER OUTPUT
RIGHT LEFT
- + - +
BRIDGED
FUSE
3
M1600.2 / M3200.2 2 CHANNEL AMPLIFIER APPLICATIONS
4. MODE:
This is the most basic application for the Mean Machine Series 2 channel ShouldbeintheSTEREO position.
amplifiers. 5. Line Level:
“Setting up systems after installation for best performance”
1. Interconnect cable checklist: Refertothesection
ConnecttheLINE INPUTS totheRadio/CDwithgoodqualityRCAcables.
2. Crossover Switch: NOTE: Minimum final loudspeaker impedances:
TheX-OVER switchmustbeintheFULL 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/Aforfullrangeoperation.
FULL RANGE STEREO
MONO
Switch setting checklist:
This application illustrates the basic mono bridging method for all Autotek -TheAMPLIFIER X-OVER switchshouldbeintheLPF positionandtheMODE
amplifiers. shouldbeintheMONO position.
Interconnect cable checklist:
AMONO signal source is required, such as would be available from the mono Crossover frequency control setting checklist:
subbassoutputofanactivecrossover,whetherstandalone,orbuiltintoahead LPF:11o’clock
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 Minimum final loudspeaker impedance:
welldamagetheoutputstageofthatsource. - 4 ohm mono.
It is necessary to feed the SAME signal to both left and right inputs via a Y-
adapterRCAcable.ConnectthemonospeakerpositiveterminaltotheLEFT+,
anditsnegativeterminaltoRIGHT-.
FULL RANGE
STEREO LINE INPUT
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY +12v
VIA FUSE
FULL RANGE
SPEAKERS
FULL RANGE
MONO SPEAKER
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY +12v
VIA FUSE
FULL RANGE
MONO LINE INPUT
VIA Y-ADAPTER
FROM MONO SOURCE

M1000.4 / M1400.4 / M2000.4 4-CHANNEL AMPLIFIER APPLICATIONS
4 CHANNEL FULL RANGE SYSTEM
2 or 3 CHANNEL SYSTEM
- HI PASS: N/A
Hereweshowhowtousethe4channelamplifiersasstraightforwarddiscrete4 - LOW PASS: N/A
channelfullrangeunits.
Interconnect cable checklist: Channels 3/4:
-ConnectthefourinputsoftheamplifiertoaRadio/CDwithqualityRCAcables. - HI PASS: N/A
- LOW PASS: N/A
Switch setting checklist:
- 1/2CH X-OVER: FULL Level control checklist:
- 3/4CH X-OVER: FULL -Refertothesection“Setting up systems after installation for best performance”
Minimum final loudspeaker impedances:
Crossover frequency control checklist:
- 2 ohm per channel.
Channels 1/2:
Switch setting checklist:
Hereweshowhowtousethe4channelamplifiersasa3channelunitbytaking - 1/2CH X-OVER: FULL
advantageofthemonobridgingcapabilityofallAutotekamplifiers. - 3/4CH X-OVER: LPF
The following example shows how to create a 3 channel system by mono
bridgingchannelpair 3/4.Inordertocreatea2 channelsystem,simply follow Crossover frequency control checklist:
theexampletoalsomonobridgechannelpair1/2. Channels 1/2:
- HI PASS: N/A
Interconnect cable checklist: - LOW PASS: N/A
-Connecttheinputsofchannel pair1/2toasuitablestereosource,e.g.ahead
unitwithgoodqualityRCAcables. Channels 3/4:
-AMONOsignalsourceisrequiredtobridgechannelpair3/4,suchaswouldbe - HI PASS: N/A
available from the mono sub bass output of an active crossover, whether - LPF: 11 o’clock
standalone, or built into a head unit or equalizer. If you only have 1 set of RCA
outputs from your headunit, you can simply connect those to the inputs for ch TIP: Ifyou areusingthe monosub bassoutput ofan activecrossover, there is
1/2 and switch the MODE to 3ch. The amplifier will auto sum the signal and nothing wrong with switching in the low pass filter in these amplifiers for a
providemonooutputforbridgedchannels3/4. steeperlowpassrolloff.
Important: Donotbetemptedto connectthe hot,or positiveoutputs, fromany
source together to obtain a mono signal, as this could very well damage the Level control checklist:
outputstageofthatsource. -Refertothesection“Setting up systems after installation for best performance”
- It is necessary to feed the SAME signal to both left and right inputs via a Y-
adapterRCAcable. Minimum final loudspeaker impedances:
- Connect the mono speaker positive terminal to the LEFT +, and its negative - 2 ohm per channel in stereo mode.
terminaltoRIGHT-asshown. - 4 ohm mono bridged.
4
LINE OUTCH3/4 CH1/2
L L
R R 6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz
LEVEL BASS EQ X-OVER HPF LPF
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz 2 3 4
LEVEL BASS EQ X-OVER HPF LPF MODE
POWER PROTECT
POWER INPUT
GND REM BATT+12V
CH 1/2 SPEAKER OUTPUT CH 3/4
RIGHT LEFT RIGHT LEFT
- + - + - + - +
BRIDGED BRIDGED
FUSE
LINE OUTCH3/4 CH1/2
L L
R R 6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz
LEVEL BASS EQ X-OVER HPF LPF
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz 2 3 4
LEVEL BASS EQ X-OVER HPF LPF MODE
POWER PROTECT
POWER INPUT
GND REM BATT+12V
CH 1/2 SPEAKER OUTPUT CH 3/4
RIGHT LEFT RIGHT LEFT
- + - + - + - +
BRIDGED BRIDGED
FUSE
STEREO LINE INPUT
MONO LINE INPUT
(Unless using procedure
listed above for 3ch)

M1000.4 / M1400.4 / M2000.4 4-CHANNEL AMPLIFIER APPLICATIONS
5
Front/Rear high pass, using a 2 channel amplifier for mono sub bass
Channels 1/2:
The combination of a 2 and a 4 channel amplifier, utilizing their built in - HI PASS: 100 Hz
crossovers, makes it a snap to put together a full system with front and rear
highs,withmonosubbass. LOW PASS: N/A
Interconnect cable checklist: Channels 3/4:
-UsinggoodqualityRCAcables,feedthefrontandrearoutputsofaheadunitto - HI PASS: 100Hz
theinputsofthe4channelamplifierasshown. - LOW PASS: N/A
-AlsoconnecttheLINE OUT ofthe4channelamplifiertotheLINE INPUT ofthe
2channelamplifierasshown. 2 channel bass amplifier:
- HI PASS (Subsonic filter): 10 Hz to 40 Hz
Mono bass woofer wiring: - LOW PASS: 80 Hz
Connect the mono speaker positive terminal to the LEFT +, and its negative
terminaltoRIGHT-. Please note that these frequency points are suggestions only. Refer to the
loudspeaker manufacturer specifications and the section “Setting up systems
Switch setting checklist: after installation for best performance”
4 channel highs amplifier:
- 1/2CH X-OVER: HPF Level control checklist:
- 3/4CH X-OVER: HPF -Refertothesection“Setting up systems after installation for best performance”
2 channel bass amplifier: Minimum final loudspeaker impedances:
- X-OVER switch: LPF - 2 ohm per channel in stereo mode.
- 4 ohm mono bridged.
Crossover frequency control checklist:
- 4 channel highs amplifier:
STEREO
INTERCONNECT
RCA CABLE
LINE OUTCH3/4 CH1/2
L L
R R 6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz
LEVEL BASS EQ X-OVER HPF LPF
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz 2 3 4
LEVEL BASS EQ X-OVER HPF LPF MODE
POWER PROTECT
POWER INPUT
GND REM BATT+12V
CH 1/2 SPEAKER OUTPUT CH 3/4
RIGHT LEFT RIGHT LEFT
- + - + - + - +
BRIDGED BRIDGED
FUSE
OUTPUT INPUT
L L
R R
6V 0.2V 0dB 12dB FULL LPF HPF 60Hz 12KHz 30Hz 250Hz MONO STEREO
LEVEL BASS EQ X-OVER HPF LPF MODE POWER
PROTECT
POWER INPUT
GND REM BATT+12V
SPEAKER OUTPUT
RIGHT LEFT
- + - +
BRIDGED
FUSE
SUBWOOFER
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY +12v
VIA FUSE

OUTPUT INPUT
L L
R R
POWER PROTECT
6V 0.2V 0dB 10dB 15Hz 35Hz 30Hz 250Hz
LEVEL BASS EQ REMOTE SUBSONIC LOW PASS
POWER INPUT
GND REM BATT+12V
SPEAKER OUTPUT
- - + +
FUSE
6
Basic application
Crossover frequency control checklist:
Thesesubbassamplifierscanbeusedinanyofthebi-amplificationsystemsdescribedin LOW PASS: 30Hz to 250Hz
thismanual,replacingthe2channelamplifiersaspertheillustrations. SUBSONIC:15 Hz to 35 Hz
BASS EQ: 0 to +10dB
Interconnect cable checklist:
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA cables.
ConnecttheLINEOUTtotheinputsofthesystemhighsamplifier. Level control checklist:
Refertothesection“Setting up systems after installation for best performance”
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals,
simplifyingthehookupofmultiplespeakers.Theseampsaremono,1channel,amplifiers Minimum final loudspeaker impedance: 1-Ohm.
whichhave multiplepositiveandnegativeconnectionsfor easeofwiring.The 2positives
arethesameinternallyandthe2negativesarethesameinternally.
FULL RANGE
STEREO LINE INPUT
NOT USED
Y-ADAPTOR
Note: You can use the Radio/CD designated mono line output or a full range stereo line output.
For full range stereo line output, you will need an optional “Y-Adaptor” as shown.
M1500.1D / M2500.1D / M4000.1D MONO AMPLIFIER APPLICATION
MONO
SUBWOOFER
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 Volts
VIA FUSE
PARALLEL MONO
SUBWOOFERS
2-OHMS EACH MINIMUM
POWER SPEAKER
FUSE
GND REM +12V
+ + - -
DESIGNATED
MONO OUTPUT
FROM HEAD UNIT
HFR-4MIN MAXX
BOOST

7
3
2
Blue Optical Surround For Illumination

8
SETTING UP SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE
M1500.1D / M2500.1D / M4000.1D
General:
At this point you are ready to get more specific on the settings for your amplifier.
Subsonic:
This setting acts as a low frequency cut off for your system bass reproduction. The point that you set it at cuts off any frequencies from reproduction beyond this point. The 12 o’clock
position is a great starting point. EXAMPLE: If you adjust the Subsonic to 25Hz, the amplifier will not play frequencies below 25Hz but will play frequencies from 25Hz to the chosen Low
Pass frequency.
Bass EQ:
This setting is a fixed bass boost at 45Hz that is variable from 0-10dB. This feature provides impact to your bass, but if not adjusted correctly, it can be over used and cause damage to
your subwoofers and amplifiers. It is best to slowly turn this setting clockwise until the desired punch is felt. It is not recommended to exceed the 12 o’clock position unless listening at a low
volume or a low recording quality as this can result in high distortion and possibly clipping.
Low Pass:
The Low Pass control acts as a ceiling and doesn’t allow frequencies to the right of the desired setting to be reproduced. The 12 o’clock position is a great starting point. EXAMPLE: If you
adjust the Low Pass to 80Hz, the amplifier will not play frequencies above 80Hz but will play frequencies from 80Hz to the chosen Subsonic frequency.
Level Control Setup:
Ensure that the Level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are familiar with to use as a reference, and turn the
head unit volume control to about 80% of its full setting. The system sound level will of course be very low, and the following procedures will help you to match the amplifier input
sensitivities properly to the head unit output signal level.
It is important to match the amplifier LEVEL input sensitivity to the Radio/CD output sensitivity. This can be located in the Radio/CD manual.
If the Radio/CD output sensitivity is 2 volts, then adjust the amplifier LEVEL input to 2 volts.
If you are not sure what the Radio output sensitivity is, follow these general guide lines:
Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control. If at any point your amplifier goes into protection, you will need to turn the Level to the left
a bit and then try again. If you reach a point where the output does not increase, stop turning the Level control to the right as the amplifier/subwoofer combo has reached its maxx output in
this application.
Sit back and enjoy the music!
M1600.2 / M3200.2 / M1000.4 / M1400.4 / M2000.4
General:
At this point you are ready to get more specific on the settings for your amplifier.
High Pass:
-When in Hi Pass operation, this setting acts as a low frequency cut off for your system reproduction. The point that you set it at cuts off any frequencies from reproduction beyond this
point. The 12 o’clock position is a great starting point. EXAMPLE: If you adjust the High Pass to 100Hz, the amplifier will not play frequencies below 100Hz but will play frequencies from
100Hz to the chosen Low Pass frequency.
-When in Low Pass/Bandpass operation, this setting acts as a low frequency cut off for your system reproduction aka Subsonic Filter. The point that you set it at cuts off any frequencies
from reproduction beyond this point. The 12 o’clock position is a great starting point. EXAMPLE: If you adjust the High Pass to 25Hz, the amplifier will not play frequencies below 25Hz but
will play frequencies from 25Hz to the chosen Low Pass frequency.
-When in Flat/Full operation, the High Pass crossover is bypassed.
Bass EQ:
This setting is a fixed bass boost at 45Hz that is variable from 0-12dB on all multi-channel models. This feature provides impact to your bass, but if not adjusted correctly, it can be over
used and cause damage to your speakers and amplifiers. It is best to slowly turn this setting clockwise until the desired punch is felt. It is not recommended to exceed the 12 o’clock
position unless listening at a low volume or a low recording quality as this can result in high distortion and possibly clipping.
Low Pass:
The Low Pass control acts as a ceiling and doesn’t allow frequencies to the right of the desired setting to be reproduced. Turning the potentiometer all the way to the right is a great starting
point. EXAMPLE: If you adjust the Low Pass to 120Hz, the amplifier will not play frequencies above 120Hz but will play frequencies from 120Hz to the chosen Hi Pass or Subsonic
frequency.
-When in Hi Pass operation, this setting is bypassed.
Level Control Setup:
Ensure that the Level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are familiar with to use as a reference, and turn the
head unit volume control to about 80% of its full setting. The system sound level will of course be very low, and the following procedures will help you to match the amplifier input
sensitivities properly to the head unit output signal level.
It is important to match the amplifier LEVEL input sensitivity to the Radio/CD output sensitivity. This can be located in the Radio/CD manual.
If the Radio/CD output sensitivity is 2 volts, then adjust the amplifier LEVEL input to 2 volts.
If you are not sure what the Radio output sensitivity is, follow these general guide lines:
Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control. If at any point your amplifier goes into protection, you will need to turn the Level to the left
a bit and then try again. If you reach a point where the output does not increase, stop turning the Level control to the right as the amplifier/speaker combo has reached its maxx output in
this application.
2 or 3 way active systems (all):
Alwaysstartwiththebass,orlowfrequencyamplifierasareference,byturningitscontroluptothepointwheredistortionisaudible,andbackitoffsome.
Nowadjustthelevelcontrolforthehighsortweeterchannelsina2wayactivesystem,tobalancethehighstolows.
Ina3wayactivesystem,matchthemidrangeleveltothebass,andthenthehighstothemidrangeandbass.Itmaybenecessarytoperformafewiterationsofthemidrangeandhighslevelcontrol

9
TROUBLESHOOTING A SYSTEM
The key to finding the problem in a misbehaving sound system is to isolate parts of that system in a logical fashion to track down the fault.
Description of the PROTECT system built into allAutotek amplifiers
Thediagnosticsystem willshut downtheamplifier, untilreset byturningtheheadunitoff,andbackon.Thisstate ofaffairswill beindicated bythe frontpanelPROTECTLED
lightingupunderthefollowingconditions:
1-Asortcircuitontheloudspeakerleads.
2-AninternalamplifierfaultthatcausesaDCoffsetontheloudspeakeroutput.
Shouldtheamplifiergointoprotectmode,simplydisconnectallRCAandspeakerleads,whilekeeping+12volt,powergroundandremoteleadsconnected.
1.Nowturntheamplifierbackon,andifthediagnosticLEDlights,theamplifierhasaninternalfault.
2.Ifnot,plugtheRCAcablesback,andresettheamplifier.Ifitgoesintodiagnosticnow,thefaultliesintheinput,eitherwithbadcablesorsourceunit.
3.IftheamplifierseemsfinewithRCAcablespluggedin,connectthespeakers,oneatatime,andifoneofthespeakersoritswiringisfaulty,itwillactivatethediagnosticsystem.
Amplifier heatsink overheating
Theamplifierswillshutdownwhentheheatsinktemperaturereaches80degreescentigrade,andturnbackononcetheunithascooleddownbelowthatpoint.
Causes of overheating:
1-Inadequatecooling-relocateorremounttoprovidebetternaturalairflowoverthefins.
2 - Driving high power levels into low impedances - back off on the volume control, and/or make sure you are not loading the amplifier with less than the recommended
loudspeakerimpedance.
Low output power
1-Checkthatlevelcontrolshavebeensetupproperly.
2-Makesurethatthebatteryvoltage,asmeasuredattheamplifier’s+12voltandgroundterminals,is11voltsormore.
3-Checkall+12voltandgroundconnections.
Fuses blowing
1-Theuseofloudspeakerimpedancesbelowtherecommendedminimumswilldrawmorecurrent-check.
2-Ashortonthemain+12voltcablefromthebatterytothevehiclechassiswillcausethemainfusetoblow.
3-Ifanamplifierfuseblowscontinually,withonly+12volt,groundandremoteleadsconnected,theamplifiermaybefaulty.
System does not turn on
1-Checkallfuses.
2-Checkallconnections.
3-Measurethe+12voltandremoteturnonvoltagesattheamplifierterminals.Ifthesearenonexistentorlow,takevoltagemeasurementsatfuseholders,distribution blocks,
theheadunit’s+12voltandremoteleadstolocalizetheproblem.
Noise problems
Systemnoisecanbedividedintotwocategories,hiss,andelectricalinterference.
Hiss, or white noise
1 - High levels of white noise usually occurs when amplifier level controls are turned up too high - readjust according to the procedures in section ”Setting up systems after
installation for best performance”
2-Anothermajorproblemthatcancauseexcessivehiss,isanoisyheadunit-unplugtheamplifierinputRCAcables,andifthehisslevelreduces,thesourceunitisatfault.
Electrical interference
Theinsideof anautomobile isa veryhostileelectricalenvironment.Themultitudeof electricalsystems, suchastheignitionsystem,alternator,fuelpumps,air conditioners,to
mentionjustafew,createradiatedelectricalfields,aswellasnoiseonthe+12voltsupplyandground.Remembertoisolatetheproblem-firstunplugamplifierinputRCAcables,
ifthenoiseisstillpresent,checkthespeakerleads,ifnot,plugtheRCA’sback,andinvestigatethesourcedrivingtheamplifier,onecomponentatatime.
Aticking or whine that changes with engine RPM:
1-ThisproblemcouldbecausedbyradiationpickupofRCAcablestooneartoafuelpumporadistributor,forinstance,-relocatecables.
2-Checkthattheheadunitgroundisconnectedstraighttothevehiclechassis,anddoesnotusefactorywiringforground.
3-Trytosupplytheheadunitwithaclean+12voltsupplydirectlyfromthebattery+,insteadofusingasupplyfromtheindashwiring/fusebox.
Aconstant whine:
Thistypeofnoisecanbemoredifficulttopinpoint,butisusuallycausedbysomekindofinstability,causingoscillationsinthesystem.
1-Checkallconnections,especiallyforgoodgrounds.
2-Makesurethatnospeakerleadsareshortingtoexposedmetalonthevehiclechassis.
3-RCAcablesarenotoriousfortheirproblematicnature,socheckthatthesearegood,inparticulartheshieldconnections.

Maxxsonics Limited Warranty
As the manufacturer of Maxxsonics, Autotek, Crunch, MB Quart and Hifonics car audio
products Maxxsonics USA Inc. Warrants to the original consumer purchaser the amplifier
to be free from defects in material and workmanship for one (1) Year from date of purchase.
All other parts and accessories of the system are warrantied to be free from defects in
material and workmanship for one (1) year from date of purchase. Maxxsonics will
repair or replace at it’s option and free of charge during the warranty period, any system
component that proves defective in materials and workmanship under normal installation,
use and service provided that the product is returned to the authorized Maxxsonics dealer
from where it was purchased. A photo copy of the original receipt must accompany the
product being returned.
Valid purchase receipts will contain the name and address of the authorized reseller.
Any damage to the product as a result of misuse, abuse, accident, incorrect wiring,
improper installation, alteration of date code or bar code labels, revolution, natural
disaster, or any sneaky stuff because someone messed up, repair or alteration out side
of our factory or authorized service centers and any thing else you have done that you
should not have done is not covered.
This warranty is limited to defective parts and specifically excludes any incidental
or consequential damages connected therewith. This warranty is not to be construed
as an insurance policy.
Warranty on installation labor, removal, re-installation and freight charges are not the
responsibility of Maxxsonics USA Inc.
Warranty products damaged as a result of insufficient or improper packing materials
are not covered by this limited warranty and such damaged product will be returned
“as is” at the expense of the owner.
10

11
OEM Integration
Accessories
MX-1 Premium High To Low Level Converter
Low Level Outputs
* High Level Inputs: Accepts all types of High level Inputs
including floating ground and high voltages up to 30 volts.
* Audio Signal Sense / Hardwire Turn-On: Audio sense detects
music signals from the OEM wires and activates the MX-1. As
an option, the module also offers a remote turn-on wire.
* Parametric Bass EQ: Features Bass Boost, adjustable Band
Width (wide & narrow), Low Pass and Subsonic Filter.
* Clipping Indicators: Visually indicates audio signals Pre-Clip,
Soft Clip and Hard Clip
* Balanced Line Output: Ultra clean DIN variable high voltage
output for driving mono amps.
* Remote Output: Driver circuit to turn on amplifier when
module activates.
* Bass Remote: Features for subwoofer Level control with built-
in clipping indicators.
* Input & Output Level Control: Allows for gain matching both
radio and amplifier audio signals.
* Converts High Level OEM speaker wires to Ultra Clean RCA
MX-2 Deluxe High To Low Level Converter
* Converts High Level OEM speaker wires to Ultra Clean RCA
Low Level Outputs
* High Level Inputs: Accepts all types of High level Inputs
including floating ground and high voltages up to 30 volts.
* Audio Signal Sense / Hardwire Turn-On: Audio sense detects
music signals from the OEM wires and activates the MX-2. As
an option, the module also offers a remote turn-on wire.
* Remote Output: Driver circuit to turn on amplifier when module
activates.
MX-3 Bass Controller
* Parametric Bass EQ: Provides a wide array of subwoofer output signal
shaping controls to enhance bass response and sound quality including
Bass Boost, adjustable Bandwidth (wide and narrow), Low Pass and
Subsonic Filter.
* Accepts a wide range of incoming music signal levels while
accommodating all types of head units and signal processors and
controlling the output level to the amp to maximize a signal strength up to
9 volts.
* Clipping Indicators: Visual clipping indicators provide indication of
damaging clipped signals to help protect the subwoofer(s) and amplifier.
Includes pre-clip, soft-clip and full-clip indications.
* Music Shaping: Shapes the music signal to achieve deep bass notes as
low as 15Hz.
* Bass Remote: Included bas Remote features built-in clipping indicators
allows direct bass control from in-dask or under-dash.
MX-4 Add A Sub High To Low Level Converter
* Converts High Level OEM speaker wires to Ultra Clean RCA Low Level
Outputs
* High Level Inputs: Accepts all types of High level Inputs including
floating ground and high voltages up to 30 volts.
* Audio Signal Sense / Hardwire Turn-On: Audio sense detects music
signals from the OEM wires and activates the MX-4. As an option, the
module also offers a remote turn-on wire.
* Remote Output: Driver circuit to turn on amplifier when module activates.

12
Accessories
LEVEL
BYPASS
NORMAL
RED - CLIP
GREEN - 9V
-20dB 0dB
-6dB
INPUT
LEVEL
PHASE BOOST
PARAMETRIC BASS EQ
BANDWIDTH FREQUENCY
0.2V 180 +10 dB 100Hz9V 0 0dB 30Hz
MAXX-LINK
MLX-100
SUBSONIC
FILTER
24 dB/OCT
LOW PASS
FILTER
24 dB/OCT
OUTPUT
LEVEL
MODE
ON
SLAVE
OFF
MASTER
RED - CLIP
GREEN - 9V
TEST TONE
65Hz
35Hz250Hz 1V 9V
5V
7V3V
15Hz35Hz

13

PART:A0910