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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 11 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. Super Sport series amplifiers require 4 gauge
power wire. 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 4 gauge wire or equivalent to the size of 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.
NOTE: This Matrix is a general rule
of thumb. Please refer to the
manufacturers specific
requirements. Super Sport
specifications can be found on
page 11.
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
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AMPLIFIER FEATURE DESCRIPTIONS
SUPER SPORT 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.
!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. 2 &
4 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 input sensitivities for rated output powers are variable from 0.2 volt to 5 volt.
!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.
SS75.2 / SS125.2 2-CHANNEL AMPLIFIERS
TheX-OVERslide switch selects theinternal crossover functions:
-The input signal is routed directly to the LINE OUT RCAjacks, regardless of the X-OVER
setting simplifying daisy chaining ofamplifiers.
-HPF:Selects thebuilt in HIGHPASSfilter, variable from 60Hz to 1.2kHz.
-FULL:Bypasses all crossovers forfull frequency rangeoperation.
-LPF:Selects thebuilt in LOW PASS, variable from 30Hzto 250Hz.
MODE: The mode switch allows you to choose Stereo for full range 2 channel operation or
MONO for bridging operation
L
L
LEVEL BASS EQ HPF
LPF
X-OVER
MODE
+
- gnd -
HI INPUT
+
FULL LPF HPF MONO
STEREO
5V 0.2V
0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
R
R
LINE OUT LINE INPUT
HIGH INPUT: If your radio/CD player does not have unbalanced (RCA) outputs, you can
use the HIGHlevel (wire) inputs.
LINEINPUT:Theline input accepts unbalanced (RCA)inputs from 0.2Vto 5V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows
you to daisy chain multiple amplifiers from onesignal.
Notethat the LOW PASSsignal is MONO.
-Inthe LPFposition, theHIGHPASSfilter acts as asubsonic filter.
-When the LPF mode is selected, a 0 to +12dB, at 45Hz, BASS -EQ
is also switched in.
The 4 channel amps have the same features as the 2 channel models accept that there are
2sets ofcontrols.
SS75.4 / SS100.4 4-CHANNEL AMPLIFIERS
1set forchannels 1&2and1set forchannels 3&4.
In addition, the 4 channel models have a Mode switch which allows you to select 2, 3 or 4
channel operation.
CHANNEL 3 / 4
LEVEL BASS EQ HPF
LPF
CH3 CH4
- gnd -
X-OVER
MODE
LINE INPUT
R
L
+
+
2
3
4
CHANNEL
5V 0.2V
0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
FULL LPF HPF
HI INPUT
- gnd -
LEVEL BASS EQ HPF
LPF
X-OVER
+
+
TheX-OVERslide switch selects the internal crossover functions:
-The input signal is routed directly to the LINE OUT RCAjacks, regardless of the X-OVER
setting simplifying daisy chaining of amplifiers.
CH3/4
CH1/2
CH1 CH2
5V 0.2V
0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
CHANNEL 1 / 2
FULL LPF HPF
LINE OUTPUT
-HPF:Selects thebuilt in HIGHPASSfilter, variable from 60Hzto 1.2kHz.
-FULL:Bypasses all crossovers for full frequency rangeoperation.
-LPF:Selects thebuilt in LOW PASS, variable from 30Hz to250Hz.
MODE: The mode switch allows you to choose Stereo for full range 2 channel operation or
MONO for bridging operation
Notethatthe LOW PASSsignal is MONO.
-In the LPFposition, the HIGHPASSfilter acts as asubsonic filter.
-When the LPF mode is selected, a 0 to +12dB, at 45Hz, BASS -EQ
is also switched in.
HIGH INPUT: If your radio/CD player does not have unbalanced (RCA) outputs, you can
use the HIGHlevel (wire) inputs.
LINEINPUT:Theline input accepts unbalanced (RCA)inputs from 0.2Vto5V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows
you to daisy chain multiple amplifiers from onesignal.
SS500.1 / SS750.1 1-CHANNEL MONO AMPLIFIERS
-The LINE INPUT signal is routed directly to the LINE OUT RCAjacks, regardless of the X-
OVERsetting simplifying daisy chaining of amplifiers.
-SUBSONIC:Allows you to adjust the crossover filter from 15Hzto 55Hz.
-LPF:Allows yo toadjust theLOW PASScrossover filter from 40Hzto 150Hz.
MODE: The mode switch allows you to choose Stereo for full range 2 channel operation or
MONO forbridging operation
OUTPUT INPUT
REMOTE
SUB
CONTROL
BASS EQ
LPF LEVEL
SONIC
L
L
POWER
PROTECT
0dB 12dB
40Hz 150Hz 6V 0.2V
15Hz 55Hz
R
R
LEVEL: Adjusts theinput sensitivity from 0.2volts to6 volts.
BASSEQ: TheBass EQis adjustable from 0dbto12dB.
REMOTE:This is theinput jack for theunder-dash bass remote module.
LINEINPUT:Theline input accepts unbalanced (RCA)inputs from 0.2Vto 6V.
LINE OUTPUT: The line output passes through signal from the line inputs which allows you
to daisy chain multiple amplifiers from onesignal.
Themonoampsarecapableof4, 2&1-Ohm loads.
Operating the amp below 1-Ohm can cause damage to the amp not
coveredin thewarranty.
2
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AMPLIFIER FEATURE DESCRIPTIONS
SUPER SPORT AMPLIFIERS:
LINEINPUT:Accepts unbalanced RCAinputs from 0.2volts to9 volts.
LINE OUTPUT: The unbalanced RCA outputs are set the same as the CROSSOVER
switch onhetopmount control.
BALANCED INPUT: Accepts balanced line inputs from 0.4 volts to 12 volts for the
optional MMBLD-1balanced line driver.
SS1000.1D / SS1500.1D 1-CHANNEL MONO AMPLIFIERS
INPUT OUTPUT
BALANCED LEVEL
INPUT
PHASE
REMOTE
BASS EQ
SUBSONIC
LOW PASS
PWR
L
L
LEVEL: The input level control allows you to match the amplifier input sensitivity to the
output level of the RADIO/CD source from 0.2 volts to 9 volts when using unbalanced
(RCA)and0.2volts to 18volts with the balanced input.
9V
0.2V
0
180
0dB 12dB
15
35Hz 35 250Hz PRO
R
R
PHASE:ThePhaseshift is fully adjustable from 0 to180degrees.
REMOTE:TheRJ45Remotejack accepts the Bass RemoteModule.
BASSEQ:TheBass Boost is fully adjustable from 0to 18dbat45Hz.
SUBSONIC:Thevariable Subsonic filter is fully adjustable from 15Hz to35Hz.
LOWPASS:Thebuilt-in lowpass frequencies are fully variable from 35to250Hz.
POWER: Indicates that the amp has power, ground and remote turn-on input via a green
L.E.D.
PROTECT: Indicates that the amplifier has detected a fault and will not operate. There
are several possible problems that can cause the amplifier to go into the protect mode.
Seethetroubleshootingguidein the back of themanual fordetails.
The monoamps arecapable of4, 2 &1-Ohm loads.
Operating the amp below 1-Ohm can cause damage to
SS1900.1D 1-CHANNEL MONO AMPLIFIERS
LINEINPUT: Accepts unbalanced RCAinputs from 0.2 volts to 9volts.
LINE OUTPUT: The unbalanced RCA outputs are set the same as the CROSSOVER
switch onhetopmount control.
INPUT OUTPUT
BALANCED LEVEL
INPUT
PHASE
REMOTE
BASS EQ
SUBSONIC
LOW PASS
PWR
IN
BALANCED INPUT: Accepts balanced line inputs from 0.4 volts to 12 volts for the
optional MMBLD-1balanced line driver.
L
L
OUTPUT
35Hz 35 250Hz PRO
9V
0.2V
0
180
0dB 12dB
15
MASTER
LEVEL: The input level control allows you to match the amplifier input sensitivity to the
output level of the RADIO/CD source from 0.2 volts to 9 volts when using unbalanced
(RCA)and0.2volts to18volts with thebalanced input.
INPUT
SLAVE
OUT
R
R
PHASE:ThePhaseshift is fully adjustable from 0to 180degrees.
REMOTE:TheRJ45Remotejack accepts theBass RemoteModule.
BASSEQ: TheBass Boostis fully adjustable from 0 to18dbat 45Hz.
SUBSONIC:Thevariable Subsonic filter is fully adjustable from 15Hzto 35Hz.
LOWPASS:Thebuilt-in low pass frequencies arefully variable from 35to 250Hz.
POWER: Indicates that the amp has power, ground and remote turn-on input via a green
L.E.D.
PROTECT: Indicates that the amplifier has detected a fault and will not operate. There
are several possible problems that can cause the amplifier to go into the protect mode.
Seethe troubleshootingguidein theback ofthe manual for details.
MASTER / SLAVE: This mono amplifier allows you to electronically “link” two amps
togetherso that you can powerasingle subwooferwithtwoamplifiers.
The monoamps arecapable of4, 2 &1-Ohm loads.
Operating the amp below 1-Ohm can cause damage to
3
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SS75.2 / SS125.2 / 2 CHANNEL AMPLIFIER APPLICATIONS
FULL RANGE STEREO
This is the most basic application for the SUPER SPORT Series 2 channel
amplifiers.
1. Interconnectcablechecklist:
ConnecttheLINEINPUTStotheRadio/CD withgoodquality RCAcables.
2. CrossoverSwitch:
TheX-OVERswitch must bein theFULLposition.
3. Crossoverfrequencycontrolchecklist:
N/Aforfull rangeoperation.
4. LineLevel:
Refertothesection “Settingupsystems afterinstallation forbest performance”.
FULL RANGE
SPEAKERS
NOTE:Minimum finalloudspeakerimpedances:
4&-2-Ohmsstereomodeor4-Ohms monomode
Thisamplifierwill notdo1-Ohm stereoor2/1-Ohm monooperation.
FULL RANGE
STEREO LINE INPUT
TO BATTERY + 12 volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
FULL RANGE MONO
This application illustrates the basic mono bridging method for all Autotek 2
channel amplifiers.
Switchsettingchecklist:
-TheAMPLIFIERX-OVERswitch must bein theFULLposition.
Interconnectcablechecklist:
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 theoutputstage ofthatsource.
Crossoverfrequencycontrolsettingchecklist:
N/Aforfull rangeoperation.
TIP: If you are using the mono sub bass output of an active crossover, there is
nothing wrong with switching in the low pass filter in these amplifiers for a
steeper lowpass roll-off.
It is necessary to feed the SAME signal to both left and right inputs via a Y-
adapter RCA cable. Connect the mono speaker positive terminal to the RIGHT
+, andits negative terminal toLEFT-.
Minimum finalloudspeakerimpedance:
-4-Ohms mono.
FULL RANGE
MONO SPEAKER
FULL RANGE
MONO LINE INPUT
VIA Y-ADAPTER
TO BATTERY + 12 volts VIA FUSE
REMOTE TURN-ON
FROM MONO SOURCE
CHASSIS GROUND
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.
Use this connector for 2 CH amplifiers
Use both connectors for 4 CH amplifiers
GRAY: CH 1 Speaker Input +
BROWN: CH 1 Speaker input -
Black: Chassis Ground
ORANGE: CH 3 Speaker Input +
PINK: CH 3 Speaker input -
Black: Chassis Ground
GREEN: CH 2 Speaker Input -
White: CH 2 Speaker Input +
BLUE: CH 4 Speaker Input -
YELLOW: CH 4 Speaker Input +
4
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SS75.2 / SS125.2 2-CHANNEL AMPLIFIER APPLICATIONS
Stereo high pass with mono low-pass in a 2 way active, or bi-amplified system
In this application we will use a 2 channel amplifier for the high frequencies, and
a second one for the low frequencies, or mono sub bass. Please consult the
speaker specifications todetermine maximum amplifier powerrequirements.
Lows amplifier:
-HIPASS(Subsonicfilter):10Hzto40Hz
-LOW PASS:100Hz
Interconnectcablechecklist:
Connect the inputs of the HIGHS amplifier to a Radio/CD with good quality RCA
cables. Connect the LINE OUT of the HIGHS amplifier to the inputs of the BASS
amplifier withastereo RCAtoRCAcable.
Please note that these frequency points are suggestions only. Refer to the
loudspeaker manufacturer specifications and the section “Setting up systems
afterinstallation forbest performance”
Mono basswooferwiring:
Connect the mono speaker positive terminal to the RIGHT +, and its negative
terminal toLEFT-.
Levelcontrolchecklist:
-Refertothesection “Settingupsystems afterinstallation forbest performance”
Minimum finalloudspeakerimpedances:
-2-Ohms perchannelstereo.
-4-Ohms monobridged.
Switchsettingchecklist:
-Highsamplifier: X-OVERswitch in theHPFposition.
-Lows amplifier: X-OVERswitch in theLPFposition.
Crossoverfrequencycontrolchecklist:
Highsamplifier:
-HIPASS:100Hz
-LOW PASS:N/A
STEREO
HIGHS
SPEAKERS
FULL RANGE
STEREO LINE INPUT
2 CHANNEL
HIGHS AMPLIFIER
TO BATTERY +12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
STEREO
INTERCONNECT
RCA CABLE
MONO BASS
SPEAKER
2 CHANNEL
SUB BASS AMPLIFIER
TO BATTERY +12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
5
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SS75.4 / SS125.4 / 4 CHANNEL AMPLIFIER APPLICATIONS
4 CHANNEL FULL RANGE SYSTEM
Here we show how to use the 4 channel amplifiers as straight forward discrete 4
channel full rangeunits.
Levelcontrolchecklist:
-Refertothesection “Settingupsystems afterinstallation forbest performance”
Interconnectcablechecklist:
-Connectthefourinputs oftheamplifier toaRadio/CDwithquality RCAcables.
Minimum finalloudspeakerimpedances:
-2-Ohms perchannel.
Switchsettingchecklist:
-1/2CHX-OVER: FULL
-3/4CHX-OVER: FULL
FULL RANGE
SPEAKERS
Crossoverfrequencycontrolchecklist:
Channels1/2:
-HIPASS:N/A
-LOW PASS:N/A
Channels3/4:
-HIPASS:N/A
-LOW PASS:N/A
TO BATTERY + 12 Volts VIA FUSE
REMOTE TURN-ON
FULL RANGE
STEREO LINE
INPUTS
CHASSIS GROUND
2 or 3 CHANNEL FULL RANGE SYSTEM
Here we show how to use the 4 channel amplifiers as full range 2 or 3 channel
units by taking advantage of the mono bridging capability of all Autotek
amplifiers.
Crossoverfrequencycontrolchecklist:
Channels1/2:
-HIPASS:N/A
-LOW PASS:N/A
The following example shows how to create a 3 channel system by mono
bridging channel pair 3 / 4. In order to create a 2 channel system, simply follow
theexample toalso mono bridge channel pair 1/2.
Channels3/4:
-HIPASS:N/A
-LOW PASS:N/A
Interconnectcablechecklist:
- Connect the inputs of channel pair 1/2 to a suitable stereo source, e.g. a head
unit withgoodquality RCAcables.
-AMONO signal source is required to bridge channel pair 3/4, such as would be
available from the mono sub bass output of an active crossover, whether
standalone, orbuilt into aheadunit orequalizer.
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
outputstage ofthatsource.
TIP: If you are using the mono sub bass output of an active crossover, there is
nothing wrong with switching in the low pass filter in these amplifiers for a
steeper lowpass rolloff.
Levelcontrolchecklist:
-Refertothesection “Settingupsystems afterinstallation forbest performance”
Minimum finalloudspeakerimpedances:
-2-Ohms perchannelinstereomode.
-4-Ohms monobridged.
- It is necessary to feed the SAME signal to both left and right inputs via a Y-
adapterRCAcable.
- Connect the mono speaker positive terminal to the LEFT +, and its negative
terminal toRIGHT-as shown.
Switchsettingchecklist:
-1/2CHX-OVER: FULL
-3/4CHX-OVER: FULL
MONO
OR SUB BASS
SPEAKER
STEREO
FULL RANGE
OR HIGHS
SPEAKERS
1 STEREO
1 MONO
TO BATTERY + 12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
FULL RANGE
LINE INPUTS
6
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SS75.4 / SS125.4 / 4 CHANNEL AMPLIFIER APPLICATIONS
2 way active, or bi-amplified system with mono bass
This application shows how easily a 2 way active system can be implemented
using a 4 channel amplifier. Channels 1 and 2 will be used for highs, and
channels 3and4formono bass.
Channels3/4:
-HIPASS(subsonic):20Hz
-LOW PASS:100Hz
Interconnectcablechecklist:
- We need to feed the same signal to both sets of channels, so must use 2 Y-
adapters, one to feed the LEFTsignal to channels 1 and 3, and the right signal to
channels 2and4, as shown.
Please note that these frequency points are suggestions only. Refer to the
loudspeaker manufacturer specifications and the section “Setting up systems
afterinstallation forbest performance”
Mono basswooferwiring:
- Connect the mono speaker positive terminal to the LEFT +, and its negative
terminal toRIGHT-.
Levelcontrolchecklist:
Refertothesection “Settingupsystems afterinstallation forbest performance”
Minimumfinalloudspeakerimpedances:
-2-Ohmsperchannelinstereomode.
-4-Ohmsmonobridged.
Switchsettingchecklist:
-1/2CHX-OVER: HP
-3/4CHX-OVER: LP
MONO
BASS
SPEAKER
STEREO
HIGHS
SPEAKERS
Crossoverfrequencycontrolchecklist:
Channels1/2:
-HIPASS:100Hz
-LOW PASS:N/A
LEFT TO
CHANNELS
1 AND 3
TO BATTERY + 12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
RIGHT TO
CHANNELS
3 AND 4
2 way active, or bi-amplified system with mono bass, and faded highs/lows
Here we present a variation of the previous system. Since this is a 2 way
system, we can use the front outputs from a head unit to drive the highs, and the
rear output to drive the bass This method allows the listener to easily adjust the
relative levels ofbass tohighs, withthefronttorearfadeontheheadunit.
Channels 1and2will beused forhighs, andchannels 3and4formono bass.
Interconnectcablechecklist:
- Use good quality RCAleads to connect the inputs of the amplifier to the source
as shown.
- Follow the instructions as per the previous system for switch and crossover
settings.
MONO
BASS
SPEAKER
STEREO
HIGHS
SPEAKERS
FULL RANGE
STEREO LINE
INPUTS
TO BATTERY + 12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
7
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SS500.1 / SS7500.1 / MONO AMPLIFIER APPLICATIONS
Basic application
These sub bass amplifiers can be used in any of the bi-amplification systems
described in this manual, replacing the 2 channel amplifiers as per the
illustrations.
SUBSONIC:15Hzto 35Hz
BASSEQ:0to +12dB
PHASE:0to180degrees
Interconnectcablechecklist:
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA
cables. Connect theLINEOUTtotheinputs ofthesystem highs amplifier.
Levelcontrolchecklist:
Refertothesection “Setting upsystems afterinstallation forbest performance”
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals,
simplifying thehookup ofmultiple speakers
Minimum final loudspeakerimpedance: 1-Ohm.
MONO
SUBWOOFER
Crossoverfrequencycontrolchecklist:
LOW PASS:35Hzto250Hz
a
utotek
0dB
18dB
ATR-1
DESIGNATED MONO
OUTPUT FROM HEAD UNIT
TO BATTERY +12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
FULL RANGE
STEREO LINE INPUT
Y-ADAPTOR
NOT USED
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
PARALLEL MONO
SUBWOOFERS
2-OHMS EACH MINIMUM
8
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SS1000.1D / SS1500.1D / MONO AMPLIFIER APPLICATIONS
Basic application
These sub bass amplifiers can be used in any of the bi-amplification systems
described in this manual, replacing the 2 channel amplifiers as per the
illustrations.
SUBSONIC:15Hzto 35Hz
BASSEQ:0to+12dB
PHASE:0to180degrees
Interconnectcable checklist:
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA
cables. ConnecttheLINEOUTtotheinputs ofthesystem highs amplifier.
Levelcontrolchecklist:
Refertothesection “Settingupsystems afterinstallation forbest performance”
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals,
simplifying thehookup ofmultiple speakers
Minimum final loudspeakerimpedance: 1-Ohm.
Crossoverfrequencycontrolchecklist:
LOW PASS:35Hzto250Hz
MONO
SUBWOOFER
DESIGNATED MONO
OUTPUT FROM HEAD UNIT
a
utotek
0dB
18dB
ATR-1
TO BATTERY +12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
FULL RANGE
STEREO LINE INPUT
Y-ADAPTOR
NOT USED
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
PARALLEL MONO
SUBWOOFERS
2-OHMS EACH MINIMUM
9
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SS1900.1D MONO AMPLIFIER APPLICATIONS
BASIC APPLICATION
The 1 channel mono amplifiers are capable of 4, 2 & 1 Ohms loads and can be used in any of the “bi-amplifier” systems described in the full range amplifier directions.
SINGLEAMPINSTALLATIONPROCEDURE:
FULL RANGE
STEREO LINE INPUT
Y-ADAPTOR
1. Connecttheamp LINEINPUTStotheRadio/CDplayer full rangeormono line outputs withgoodquality RCAinterconnect cables.
2. Route two2gaugeorone0gaugepowercables directly from thevehicle battery, withanin-line fuse, totheamplifier.
4. Connecttwo2gaugegroundcables directly tochassis groundwithin 36”oftheamp.
-Besure toremove any paint orprimer from thegroundpoint.
NOT USED
-Useanut, bolt andlock washertosecure thegroundcable tothechassis ground.
5. Connectthesubwoofer(s)in accordance tothediagrams below.
6. Make sure theMASTER/SLAVEswitch is in theMASTERposition.
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
Note:Theamplifier will notworkif theMASTER/SLAVEswitch is in theSlave position
MONO
SUBWOOFER
PARALLEL MONO
SUBWOOFERS
2 OHMS EACH MINIMUM
DESIGNATED MONO
LINE INPUT
POWER
GND
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utotek
SPEAKER
+
+12V
REM
-
-
+
REMOTE TURN-ON
0dB
18dB
ATR-1
CHASSIS GROUND
TO BATTERY +12v VIA FUSE
DUAL AMPINSTALLATIONPROCEDURE:
1. Connect the amp LINE INPUTS to the Radio/CD player full range or mono line out puts with good
quality RCAinterconnect cables.
2. Plugin theATR-1bass remotemodule into theamp REMOTEINPUTjack.
3. Use an additional ATR-1 Bass remote cable to connect the Master amp REMOTE OUTPUT to the
Slave amp REMOTE INPUT. This will allow the Master amp to control both Master and Slave amps
withjust oneBass Remote.
Master andSlave amps.TheSlave amp crossover switches will bebypassed.
5. Routetwo2or0gaugepowercables directly tothevehicle battery withanin-line fuse.
6. Connecttwo2or0gaugegroundcables directly tochassis groundwithin 36”oftheamp.
-Besure toremove any paintorprimer from thegroundpoint.
-Useanut, bolt andlock washertosecure thegroundcable tothechassis ground.
7. Make sure the Master amp MASTER/SLAVE switch is in the MASTER position. Make sure the Slave
amp MASTER/SLAVEswitch is in theSLAVEposition.
4. Connect an RCA jumper cable from the Master amp MASTER OUTPUT to the Slave amp SLAVE
INPUT. Note: This will “link” the amps so that the Master amp crossover switches will control both the
8. Connectthesubwoofer(s)in accordance tothediagrams below.
9. Connecta12gaugejumper from Master amp speaker -toSlave amp speaker -as shownbelow.
Linking two amps for single or dual subwoofer application
Note: You can use the Radio/CD designated mono
FULL RANGE
STEREO LINE INPUT
Y-ADAPTOR
line output or a full range stereo line output.
For full range stereo line output, you will need an
optional “Y-Adaptor” as shown
NOT USED
POWER
GND
POWER
+12V GND
SPEAKER
+
SPEAKER
-
+12V
REM
-
-
+
REM
-
+
+
DESIGNATEDMONO
LINE INPUT
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utotek
DUAL VOICE COIL
SUBWOOFER
0dB
18dB
ATR-1
MASTER
IN
OUTPUT
MASTER
INPUT
OUT
SLAVE
SINGLE VOICE COIL
SUBWOOFER
POWER
GND
POWER
+12V GND
SPEAKER
+
SPEAKER
+
+12V
REM
-
-
+
REM
-
-
+
SLAVE
- +
- +
TWO SINGLE COIL
SUBWOOFERS
IN
OUTPUT
MASTER
INPUT
OUT
SLAVE
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SETTING UP SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE
SS75.2 / SS125.2 / SS75.4 / SS125.4
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. 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.
2or3 way activesystems(all):
Always start with thebass, orlow frequency amplifier as a reference, by turning its control uptothepoint wheredistortion is audible, andback it off some.
Nowadjust thelevel control for thehighs ortweeterchannels in a 2way active system, to balance thehighs tolows.
In a 3 way active system, match the midrange level to the bass, and then the highs to the midrange and bass. It may be necessary to perform a few iterations of the midrange and highs level
SS500.1 / SS750.1 / SS1000.1D / SS1500.1D / SS1900.1D
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.
Phase:
The variable Phase adjustment allows you to change the relative time that the waveform meets your ear. With standard subwoofer installations where the subwoofer is behind you, the
Phase should generally be at 0. When subwoofers or woofers are in the kick panels or door panels, the Phase adjustment is useful in delaying the timing of the wave meeting your ear by
adjusting the potentiometer to 180 degrees.
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!
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TROUBLESHOOTING A SYSTEM
Thekeytofindingtheprobleminamisbehavingsoundsystemistoisolatepartsofthatsysteminalogicalfashiontotrackdown thefault.
DescriptionofthePROTECTsystembuiltintoallAutotekamplifiers
The diagnostic system will shut down the amplifier, until reset by turning the head unit off, and back on. This state of affairs will be indicated by the front panel PROTECT
LEDlighting upunderthefollowing conditions:
1-Asort circuit ontheloudspeaker leads.
2-Aninternal amplifier fault thatcauses aDCoffset ontheloudspeaker output.
Shouldtheamplifier gointo protect mode, simply disconnect all RCAandspeaker leads, while keeping +12volt, powergroundandremote leads connected.
1. Nowturntheamplifier back on, andif thediagnostic LEDlights, theamplifier has aninternal fault.
2. Ifnot, plug theRCAcables back, andreset theamplifier. Ifit goes into diagnostic now, thefault lies in theinput, either withbadcables orsource unit.
3. If the amplifier seems fine with RCAcables plugged in, connect the speakers, one at a time, and if one of the speakers or its wiring is faulty, it will activate the diagnostic
system.
Amplifierheatsink overheating
Theamplifiers will shut downwhentheheatsink temperature reaches 80degrees centigrade, andturnback ononce theunit has cooled downbelowthatpoint.
Causesofoverheating:
1-Inadequatecooling -relocate orremount toprovide betternatural airflow over thefins.
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
loudspeaker impedance.
Low outputpower
1-Check thatlevel controls have beenset upproperly.
2-Make sure thatthebattery voltage, as measured attheamplifier’s +12volt andgroundterminals, is 11volts ormore.
3-Check all +12volt andgroundconnections.
Fusesblowing
1-Theuse ofloudspeaker impedances belowtherecommended minimums will drawmore current -check.
2-Ashort onthemain +12volt cable from thebattery tothevehicle chassis will cause themain fuse toblow.
3-Ifanamplifier fuse blows continually, withonly +12volt, groundandremote leads connected, theamplifier may befaulty.
Systemdoesnotturnon
1-Check all fuses.
2-Check all connections.
3 - Measure the +12 volt and remote turn on voltages at the amplifier terminals. If these are non existent or low, take voltage measurements at fuse holders, distribution
blocks, theheadunit’s +12volt andremote leads tolocalize theproblem.
Noiseproblems
System noise can bedivided into twocategories, hiss, andelectrical interference.
Hiss, orwhite 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 forbest performance”
2-Anothermajor problem thatcan cause excessive hiss, is anoisy headunit -unplug theamplifier input RCAcables, andif thehiss level reduces, thesource unit is atfault.
Electricalinterference
The inside of an automobile is a very hostile electrical environment. The multitude of electrical systems, such as the ignition system, alternator, fuel pumps, air conditioners,
to mention just a few, create radiated electrical fields, as well as noise on the +12 volt supply and ground. Remember to isolate the problem - first unplug amplifier input RCA
cables, if thenoise is still present, check thespeaker leads, if not, plug theRCA’s back, andinvestigate thesource driving theamplifier, onecomponent atatime.
Atickingorwhine thatchangeswith engineRPM:
1-This problem could becaused by radiation pickup ofRCAcables tooneartoafuel pump oradistributor, forinstance, -relocate cables.
2-Check thattheheadunit groundis connected straight tothevehicle chassis, anddoes notuse factory wiring forground.
3-Try tosupply theheadunit withaclean +12volt supply directly from thebattery +, instead ofusing asupply from thein dash wiring/fusebox.
Aconstantwhine:
This type ofnoise can bemore difficult topinpoint, butis usually caused by some kind ofinstability, causing oscillations in thesystem.
1-Check all connections, especially forgoodgrounds.
2-Make sure thatnospeaker leads areshorting toexposed metal onthevehicle chassis.
3-RCAcables arenotorious fortheir problematic nature, so check thatthese aregood, in particular theshield connections.
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a
utotek
Maxxsonics Limited Warranty
SUPER SPORT AMPLIFIERS
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.
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