Crunch Ground Pounder GPV1000.2 User manual

AMPLIFIERS
GPV700.2 / GPV1000.2
GPV1000.4 / GPV1600.4
GPV2000.1 / GPV3000.1D Pro

Ground Pounder GPV AMPLIFIERS
INDEX PAGE
Crunch is proud to introduce the finest high end car audio products available and would like to thank you for your
continued support. The Ground Pounder Series range of 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, bass equalization and a bass remote control module option 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.
AmplifierFeatureDescriptions..........................................................................................................................................................1
GPV700.2/GPV1000.2 2-CHANNEL AMPLIFIER APPLICATIONS...........................................................................................2-3
Full range stereo / Full range mono / 2 way active with mono bass using two 2 channel models
GPV1000.4/GPV1600.4 4CHANNEL AMPLIFIER APPLICATIONS..........................................................................................4-5
4, 3 and 2 channel full range / 2 way active, with mono bass /
front/rear high pass using a 2 channel model for mono sub bass
GPV2000.1A/B CLASS 1 CHANNEL AMPLIFIER APPLICATIONS................................................................................................ 6
Basic mono amplifier application
GPV3000.1D PRO D CLASS 1 CHANNEL AMPLIFIER APPLICATIONS........................................................................................ 7
Basic mono amplifier application and linking instructions
FeaturesandSpecifications.............................................................................................................................................................8
SettingUpSystemsAfterInstallationForBestPerformance.............................................................................................................9
TroubleshootingandDiagnostics....................................................................................................................................................10
ProductWarranty............................................................................................................................................................................11
The contents of this manual may not be reproduced or copied with out the
written consent of MAXXSONICS USA, Inc.

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 9 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 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.
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.
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. GPV specifications
can be found on page 9.
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
+
+
+
+
+
30th ANNIVERSARY
GROUND POUNDER
WOOD

AMPLIFIER FEATURE DESCRIPTIONS
GROUND POUNDER GPV AMPLIFIERS: APOWER LED indicates the powered up and turned on condition.
Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged operation ! !All Crunch amplifiers feature a comprehensive diagnostic system, with speaker lead short circuit,
except the mono amps which are capable of 4, 2 and 1-Ohm loads. !
and amplifier DC faults indicated by the red “PROTECT” LED.
!Tri-Mode operation with any stereo pair of amplifier channels is possible, as with all bridgeable CAUTION: DO NOT OPERATE ANY AMPLIFIER BELOW THE INTENDED IMPEDANCE. YOU
amplifiers. !
!The input sensitivities for rated output powers are variable from 0.2 volts to 5 volts on multi channel WILL CAUSE DAMAGE TO THE AMPLIFIER THAT WILL NOT BE COVERED UNDER THE
models and 0.2 volts to 6-9 volts on mono models. WARRANTY PRINTED IN THE BACK OF THE MANUAL. 2 & 4 Channel amps are capable of 4
!All crossovers are fully variable in their respective ranges. and 2-Ohms wired stereo and 4-Ohms wired mono bridged. The mono amps are capable of 4, 2
!Crossover filters are 12dB/Octave. and 1-Ohm.
2
TheX-OVER slideswitchselectstheinternalcrossoverfunctions:
-The input signal isrouted directly to theLINE OUT RCA jacks,regardless of the X-OVER setting
simplifyingdaisychainingofamplifiers.
-HPF: SelectsthebuiltinHIGH PASS filter,variablefrom60Hzto1.2kHz.
-FULL: Bypassesallcrossoversforfullfrequencyrangeoperation.
-LPF: SelectsthebuiltinLOW PASS ,variablefrom30Hzto250Hz.
MODE:The modeswitch allowsyou tochoose Stereofor fullrange 2channel operationor MONO
forbridgingoperation
HIGH INPUT: If your radio/CD player does not have unbalanced (RCA) outputs, you can use the
HIGHlevel(wire)inputs.
LINE INPUT:Thelineinputacceptsunbalanced(RCA)inputsfrom0.2Vto5V.
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 +9dB, at 45Hz, BASS -
EQ is also switched in.
GPV700.2 / GPV1000.2 2-CHANNEL AMPLIFIERS
The4channelampshavethesamefeaturesasthe2channel modelsacceptthatthereare2setsof
controls.
1setforchannels1&2and1setforchannels3&4.
Inaddition, the 4 channel modelshavea Mode switch which allowsyou to select2, 3 or4 channel
operation.
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,variablefrom60Hzto1.2kHz.
-FULL: Bypassesallcrossoversforfullfrequencyrangeoperation.
-LPF: SelectsthebuiltinLOW PASS ,variablefrom30Hzto250Hz.
MODE:The mode switchallows you tochoose Stereo forfull range 2channel operation orMONO
forbridgingoperation
HIGH INPUT: If your radio/CD player does not have unbalanced (RCA) outputs, you can use the
HIGHlevel(wire)inputs.
LINE INPUT:Thelineinputacceptsunbalanced(RCA)inputsfrom0.2Vto5V.
LINE OUTPUT:The lineoutputpasses throughsignalfrom thelineinputs whichallowsyouto 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 +9dB, at 45Hz, BASS -
EQ is also switched in.
GPV1000.4 / GPV1600.4 4-CHANNEL AMPLIFIERS
-The LINE INPUT signal is routed directly to the LINE OUT RCAjacks, regardless of the X-OVER
settingsimplifyingdaisychainingofamplifiers.
-SUBSONIC:Allowsyoutoadjustthecrossoverfilterfrom15Hzto35Hz.
-LPF:AllowsyotoadjusttheLOW PASS crossoverfilterfrom35Hzto250Hz.
LEVEL: Adjuststheinputsensitivityfrom0.2voltsto6volts.
BASS EQ: TheBassEQisadjustablefrom0dbto9dB.
REMOTE: ThisistheinputjackfortheremoteLevelcontrol.
LINE INPUT:Thelineinputacceptsunbalanced(RCA)inputsfrom0.2Vto6V.
LINE OUTPUT:Thelineoutput passesthrough signalfrom theline inputswhich allowsyou 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.
GPV2000.1 1-CHANNEL A/B CLASS MONO BLOCK AMPLIFIERS
LINE INPUT: AcceptsunbalancedRCAinputsfrom0.2voltsto9volts.
LINE OUTPUT: The unbalancedRCAoutputsare setthe sameas theCROSSOVER switchonthe
sidemountcontrol.
BALANCED INPUT: Acceptsbalancedlineinputsfrom0.4voltsto12voltsfortheoptionalMMBLD-
1balancedlinedriver.
LEVEL: Theinputlevelcontrolallowsyoutomatchtheamplifierinputsensitivitytotheoutputlevelof
the RADIO/CD source from 0.2 volts to 9 volts when using unbalanced (RCA) and 0.2 volts to 18
voltswiththebalancedinput.
PHASE: ThePhaseshiftisfullyadjustablefrom0to180degrees.
REMOTE: ThisistheinputjackfortheremoteLevelcontrol.
BASS EQ: TheBassBoostisfullyadjustablefrom0to10dbat45Hz.
SUBSONIC: ThevariableSubsonicfilterisfullyadjustablefrom15Hzto35Hz.
LOWPASS: Thebuilt-inlowpassfrequenciesarefullyvariablefrom35to250Hz.
POWER: Indicatesthattheamphaspower,groundandremoteturn-oninputviaagreenL.E.D.
PROTECT: Indicates that the amplifierhas detected a faultand will not operate.There are several
possible problems that can cause the amplifier to go into the protect mode. See the trouble
shooting guide inthebackofthemanualfordetails.
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.
GPV3000.1D PRO 1-CHANNEL D-CLASS MONO AMPLIFIERS
+ - gnd - +
HI INPUT 5V 0.2V 0dB 9dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF MONO STEREO
X-OVER MODE
LINE OUT LINE INPUT
LL
RR
LINE INPUT LINE OUT
R
L
CH3/4 CH1/2
CH3 CH4
CH1 CH2
CHANNEL 1 / 2
CHANNEL 3 / 4
+ - gnd - +
+ - gnd - +
HI INPUT 5V 0.2V 0dB 9dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
5V 0.2V 0dB 9dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
CHANNEL
2 3 4
MODE
L
R
L
R
9V 0.2V 0 180 0dB 10dB 15 35Hz 35 250Hz PRO
INPUT OUTPUT BAL ANCED LEVEL PHASE REMOTE BASS EQ SUBSONIC LOW PASS PWR
INPUT
OUTPUT
MASTER
INPUT
SLAVE
IN
OUT
FLASH
NO FLASH
FLASH
NO FLASH
L
R
L
R
POWER
PROTECT
REMOTE
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
40Hz 150Hz
LOW
PASS
6V 0.2V
LEVEL
INPUT
OUTPUT
FLASH
NO FLASH

GPV700.2 / GPV1000.2 2 CHANNEL AMPLIFIER APPLICATIONS
3
FULL RANGE MONO
This is the most basic application for the GROUND POUNDER Series 2 channel 3. Crossover frequency control checklist:
amplifiers. N/Aforfullrangeoperation.
4. Line Level:
1. Interconnect cable checklist:
ConnecttheLINE INPUTS totheRadio/CD withgoodqualityRCAcables. Refertothesection“Setting up systems after installation for best performance”.
2. Crossover Switch:
TheX-OVER switchmustbeintheFULL position. NOTE: Minimum final loudspeaker impedances:
TheMODE switchmustbeintheSTEREO position. 4 &-2-Ohms stereo mode or 4-Ohms mono mode
Switch setting checklist:
This application illustrates the basic mono bridging method for all Crunch 2 channel -TheX-OVER switchmustbeintheFULL position.
amplifiers. -TheMODE switchmustbeintheMONO position.
Interconnect cable checklist:
Crossover frequency control setting checklist:
AMONO signal sourceis required, such as would beavailable from the monosub bass N/Aforfullrangeoperation.
output of an active crossover, whether stand alone, or built into a head unit or equalizer. TIP:
Important: If you are using the mono sub bass output of an active crossover, there is nothing Do not be tempted to connect the hot, or positive outputs, from any source wrongwithswitchinginthelowpassfilterintheseamplifiersforasteeperlowpassroll-off.
together toobtain amono signal,as thiscould verywell damage theoutput stageof that
source.
It is necessary to feed the SAME signal to both left and right inputs via a Y-adapter RCA Minimum final loudspeaker impedance:
cable. Connect the mono speaker positive terminal to the LEFT +, and its negative - 4-Ohms mono.
terminaltoRIGHT-.
FULL RANGE STEREO
FULL RANGE
MONO SPEAKER
The HIGH LEVEL inputs are used when the radio/CD player does not have RCAcable outputs. You can connect the radio/CD player speaker wires directly
to the amplifier via the high Level Inputs.
GRAY: CH 1 Speaker Input +
BROWN: CH 1 Speaker input -
Black: Chassis Ground
GREEN: CH 2 Speaker Input -
White: CH 2 Speaker Input +
ORANGE: CH 3 Speaker Input +
PINK: CH 3 Speaker input -
Black: Chassis Ground
BLUE: CH 4 Speaker Input -
YELLOW: CH 4 Speaker Input +
Use this connector for 2 CH amplifiers Use both connectors for 4 CH amplifiers
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 volts VIA FUSE
30th ANNIVERSARY
GROUND POUNDER
+ - gnd - +
HI INPUT 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF MONO STEREO
X-OVER MODE
LINE OUT LINE INPUT
LL
RR
POWER INPUT SPEAKER OUTPUT
BRIDGED
- LEFT + - LEFT +
FUSE
GND REM +12V
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 volts VIA FUSE
30th ANNIVERSARY
GROUND POUNDER
+ - gnd - +
HI INPUT 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF MONO STEREO
X-OVER MODE
LINE OUT LINE INPUT
LL
RR
POWER INPUT SPEAKER OUTPUT
BRIDGED
- LEFT + - LEFT +
FUSE
GND REM +12V
FULL RANGE
SPEAKERS
FULL RANGE
STEREO LINE INPUT
FULL RANGE
MONO LINE INPUT
VIA Y-ADAPTER
FROM MONO SOURCE

30th ANNIVERSARY
GROUND POUNDER
+ - gnd - +
HI INPUT 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF MONO STEREO
X-OVER MODE
LINE OUT LINE INPUT
LL
RR
POWER INPUT SPEAKER OUTPUT
BRIDGED
- LEFT + - LEFT +
FUSE
GND REM +12V
30th ANNIVERSARY
GROUND POUNDER
+ - gnd - +
HI INPUT 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF MONO STEREO
X-OVER MODE
LINE OUT LINE INPUT
LL
RR
POWER INPUT SPEAKER OUTPUT
BRIDGED
- LEFT + - LEFT +
FUSE
GND REM +12V
GPV700.2 / GPV1000.2 2-CHANNEL AMPLIFIER APPLICATIONS
4
Stereo high pass with mono low-pass in a 2 way active, or bi-amplified system
Crossover frequency control checklist:
Inthisapplicationwewillusea2channelamplifierforthehighfrequencies,andasecond Highs amplifier:
oneforthelowfrequencies,ormonosubbass.Pleaseconsultthespeakerspecifications - HI PASS: 100 Hz
todeterminemaximumamplifierpowerrequirements. - LOW PASS: N/A
Interconnect cable checklist:
Connect the inputs of the HIGHS amplifier to a Radio/CD with good quality RCAcables. Lows amplifier:
Connectthe LINE OUTof the HIGHSamplifier to theinputsof the BASSamplifierwith a - HI PASS (Subsonic filter): 10 Hz to 40 Hz
stereoRCAtoRCAcable. - LOW PASS: 80 Hz
Mono bass woofer wiring: Please note that these frequency points are suggestions only. Refer to the loudspeaker
Connectthemonospeaker positiveterminal tothe RIGHT+,and itsnegative terminalto manufacturerspecificationsandthesection“Setting up systems after installation for best
LEFT-. performance”
Switch setting checklist: Level control checklist:
- Highs amplifier: X-OVER switchintheHPF position. -Refertothesection“Setting up systems after installation for best performance”
MODE switchintheSTEREO position. Minimum final loudspeaker impedances:
- Lows amplifier: X-OVER switchintheLPF position. - 2-Ohms per channel stereo.
MODE switchintheMONO position. - 4-Ohms mono bridged.
FULL RANGE
STEREO LINE INPUT
STEREO
INTERCONNECT
RCA CABLE
MONO BASS
SPEAKER
REMOTE TURN-ON
REMOTE TURN-ON
CHASSIS GROUND
CHASSIS GROUND
TO BATTERY + 12 volts VIA FUSE
TO BATTERY + 12 volts VIA FUSE
FULL RANGE
SPEAKERS

GPV1000.4 / GPV1600.4 4 CHANNEL AMPLIFIER APPLICATIONS
4 CHANNEL FULL RANGE SYSTEM
2 or 3 CHANNEL FULL RANGE SYSTEM
Crossover frequency control checklist:
Hereweshow howtouse the4channelamplifiersasstraightforwarddiscrete 4channel Channels 1/2:
fullrangeunits. - HI PASS: N/A
- LOW PASS: N/A
Interconnect cable checklist:
-ConnectthefourinputsoftheamplifiertoaRadio/CDwithqualityRCAcables. Channels 3/4:
- HI PASS: N/A
Switch setting checklist: - LOW PASS: N/A
- 1/2CH X-OVER: FULL
- 3/4CH X-OVER: FULL Level control checklist:
“Setting up systems after installation for best performance”
MODE: -Refertothesection
- 4CHANNEL
Minimum final loudspeaker impedances:
- 2-Ohms per channel.
Crossover frequency control checklist:
Here we show how to use the 4 channel amplifiers as full range 2 or 3 channel units by Channels 1/2:
taking advantage of the mono bridging capability of all Crunch amplifiers. - HI PASS: N/A
The following example shows how to create a 3 channel system by mono bridging - LOW PASS: N/A
channel pair 3 / 4. In order to create a 2 channel system, simply follow the example to
also mono bridge channel pair 1 / 2. Channels 3/4:
- HI PASS: N/A
Interconnect cable checklist: - LOW PASS: N/A
- Connect the inputs of channel pair 1/2 to a suitable stereo source, e.g. a head unit
with good quality RCAcables. TIP: If you are using the mono sub bass output of an active crossover, there is nothing
-A MONO signal source is required to bridge channel pair 3/4, such as would be wrong with switching in the low pass filter in these amplifiers for a steeper low pass
available from the mono sub bass output of an active crossover, whether standalone, rolloff.
or built into a head unit or equalizer.
Important: Do not be tempted to connect the hot, or positive outputs, from any source Level control checklist:
together to obtain a mono signal, as this could very well damage the output stage of - Refer to the section “Setting up systems after installation for best performance”
that source.
- It is necessary to feed the SAME signal to both left and right inputs via a Y-adapter Minimum final loudspeaker impedances:
RCAcable. - 2-Ohms per channel in stereo mode.
- Connect the mono speaker positive terminal to the LEFT +, and its negative terminal - 4-Ohms mono bridged.
to RIGHT - as shown.
Switch setting checklist:
- 1/2CH X-OVER: FULL
- 3/4CH X-OVER: FULL
- MODE: 3 CHANNEL
5
MONO
OR SUB BASS
SPEAKER
REMOTE TURN-ON
REMOTE TURN-ON
CHASSIS GROUND
CHASSIS GROUND
30th ANNIVERSARY
GROUND POUNDER
LINE INPUT LINE OUT
R
L
CH3/4 CH1/2
CH3 CH4
CH1 CH2
CHANNEL 1 / 2
CHANNEL 3 / 4
+ - gnd - + + - gnd - +
HI INPUT 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
CHANNEL
2 3 4
MODE
BRIDGEDBRIDGED
FUSE
POWER INPUT
GND REM +12V
CH 3/4 SPEAKER OUTPUTCH 1/2 SPEAKER OUTPUT
- RIGHT + - LEFT +
- RIGHT + - LEFT +
30th ANNIVERSARY
GROUND POUNDER
LINE INPUT LINE OUT
R
L
CH3/4 CH1/2
CH3 CH4
CH1 CH2
CHANNEL 1 / 2
CHANNEL 3 / 4
+ - gnd - + + - gnd - +
HI INPUT 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF
FULL LPF HPF
X-OVER
CHANNEL
2 3 4
MODE
BRIDGEDBRIDGED
FUSE
POWER INPUT
GND REM +12V
CH 3/4 SPEAKER OUTPUTCH 1/2 SPEAKER OUTPUT
- RIGHT + - LEFT +
- RIGHT + - LEFT +
TO BATTERY + 12 Volts VIA FUSE
TO BATTERY + 12 Volts VIA FUSE
FULL RANGE
SPEAKERS
FULL RANGE
SPEAKERS
FULL RANGE
SPEAKERS
1 STEREO
1 MONO
FULL RANGE
LINE INPUTS
FULL RANGE
STEREO LINE
INPUTS

6
2 way active, or bi-amplified system with mono bass
2 way active, or bi-amplified system with mono bass, and faded highs/lows
Crossover frequency control checklist:
This application shows how easily a 2 way active system can be implemented using a 4 Channels 1/2:
channelamplifier.Channels1and2willbeusedforhighs,andchannels3and4formono - HI PASS: 100 Hz
bass. - LOW PASS: N/A
Interconnect cable checklist: Channels 3/4:
-Weneedtofeedthesamesignaltobothsetsofchannels,somustuse2Y-adapters,one - HI PASS (subsonic): 20 Hz
tofeedthe LEFTsignaltochannels 1 and 3,andthe right signal to channels2and 4, as - LOW PASS: 100 Hz
shown. Please note that these frequency points are suggestions only. Refer to the loudspeaker
Mono bass woofer wiring: manufacturerspecificationsandthesection“Setting up systems after installation for best
-Connect themonospeaker positiveterminalto theLEFT+,and its negativeterminal to performance”
RIGHT -.
Level control checklist:
Switch setting checklist: Refertothesection“Setting up systems after installation for best performance”
- 1/2CH X-OVER: HP
- 3/4CH X-OVER: LPF Minimum final loudspeaker impedances:
- 2-Ohms per channel in stereo mode.
- 4-Ohms mono bridged.
Interconnect cable checklist:
Herewepresent avariationof theprevioussystem. Sincethisisa2waysystem,wecan -UsegoodqualityRCAleadstoconnecttheinputsoftheamplifiertothesourceasshown.
use the front outputs from a head unit to drive the highs, and the rear output to drive the
bass This methodallows the listener to easily adjust the relativelevels of bass to highs, -Followtheinstructionsaspertheprevioussystemforswitchandcrossoversettings.
withthefronttorearfadeontheheadunit.
Channels1and2willbeusedforhighs,andchannels3and4formonobass.
STEREO
HIGHS
SPEAKERS
STEREO
HIGHS
SPEAKERS
GPV1000.4 / GPV1600.4 4 CHANNEL AMPLIFIER APPLICATIONS
MONO
SUB BASS
SPEAKER
MONO
SUB BASS
SPEAKER
REMOTE TURN-ON
REMOTE TURN-ON
CHASSIS GROUND
CHASSIS GROUND
30th ANNIVERSARY
30th ANNIVERSARY
GROUND POUNDER
GROUND POUNDER
LINE INPUT LINE INPUT
LINE OUT LINE OUT
RR
LL
CH3/4 CH1/2 CH3/4 CH1/2
CH3 CH4 CH3 CH4
CH1 CH2 CH1 CH2
CHANNEL 1 / 2 CHANNEL 1 / 2
CHANNEL 3 / 4 CHANNEL 3 / 4
+ - gnd - + + - gnd - + + - gnd - + + - gnd - +
HI INPUT HI INPUT
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF LEVEL BASS EQ HPF LPF
FULL FULL
LPF LPF
HPF HPF
X-OVER X-OVER
5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz 5V 0.2V 0dB 12dB 60Hz 1.2KHz 30Hz 250Hz
LEVEL BASS EQ HPF LPF LEVEL BASS EQ HPF LPF
FULL FULL
LPF LPF
HPF HPF
X-OVER X-OVER
CHANNEL CHANNEL
2 3 4 2 3 4
MODE MODE
BRIDGEDBRIDGED
FUSE
POWER INPUT
GND REM +12V
CH 3/4 SPEAKER OUTPUTCH 1/2 SPEAKER OUTPUT
- RIGHT + - LEFT +
- RIGHT + - LEFT +
BRIDGEDBRIDGED
FUSE
POWER INPUT
GND REM +12V
CH 3/4 SPEAKER OUTPUTCH 1/2 SPEAKER OUTPUT
- RIGHT + - LEFT +
- RIGHT + - LEFT +
TO BATTERY + 12 Volts VIA FUSE
TO BATTERY + 12 Volts VIA FUSE
LEFT TO
CHANNELS
1 AND 3
RIGHT TO
CHANNELS
3 AND 4
FULL RANGE
STEREO LINE
INPUTS

7
Basic application
Crossover frequency control checklist:
Thesesubbassamplifierscanbeusedinanyofthebi-amplificationsystemsdescribedin LOW PASS: 35Hz to 250Hz
thismanual,replacingthe2channelamplifiersaspertheillustrations. SUBSONIC:15 Hz to 35 Hz
BASS EQ: 0 to +9dB
Interconnect cable checklist:
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA cables. PHASE: 0 to 180 degrees
ConnecttheLINEOUTtotheinputsofthesystemhighsamplifier.
Level control checklist:
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals, Refertothesection“Setting up systems after installation for best performance”
simplifyingthehookupofmultiplespeakers
Minimum final loudspeaker impedance: 1-Ohm.
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.
GPV2000.1 A/B CLASS 1 CHANNEL AMPLIFIER APPLICATION
PARALLEL MONO
SUBWOOFERS
2-OHMS EACH MINIMUM
MONO
SUBWOOFER
30th ANNIVERSARY
GROUND POUNDER
POWER SPEAKER
FUSE
GND REM +12V
- - + +
POWER SPEAKER
FUSE
GND REM +12V
- - + +
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 Volts VIA FUSE
DESIGNATED
MONO OUTPUT
FROM HEAD UNIT
MIN MAXX
GPR-1
L
R
L
R
POWER
PROTECT
REMOTE
0dB 9dB
BASS
BOOST
15Hz 55Hz
SUB
SONIC
40Hz 150Hz
LOW
PASS
6V 0.2V
LEVEL
INPUT
OUTPUT
FLASH
NO FLASH

+12V GND
POWER SPEAKER
REM +
-+ -
+12V GND
POWER SPEAKER
REM +
-+ -
DUAL VOICE COIL
SUBWOOFER /
AMPLIFIERS NOT
LINKED
30th ANNIVERSARY
GROUND POUNDER
30th ANNIVERSARY
GROUND POUNDER
30th ANNIVERSARY
GROUND POUNDER
PARALLEL MONO
SUBWOOFERS
2OHMS EACH MINIMUM
+12V GND
POWER SPEAKER
REM +
-+ -
8
SINGLE AMP INSTALLATION PROCEDURE:
1. Connect the amp LINE INPUTS to the Radio/CD player full range or mono line out
puts with good quality RCAinterconnect cables.
2.PlugintheGPR-1bassremotemoduleintotheampREMOTEINPUTjack.
3.Routea0gaugepowercablesdirectlytothevehiclebatterywithanin-linefuse.
4.Connecta0gaugegroundcablesdirectlytochassisgroundwithin36”oftheamp.
-Besuretoremoveanypaintorprimerfromthegroundpoint.
-Useanut,boltandlockwashertosecurethegroundcabletothechassisground.
5.Connectthesubwoofer(s)inaccordancetothediagramsbelow.
6.MakesuretheMASTER/SLAVEswitchisintheMASTERposition.
Note:TheamplifierwillnotworkiftheMASTER/SLAVEswitchisintheSlaveposition
DUAL AMP INSTALLATION PROCEDURE: 5. Connect two 0 gauge ground cables directly to the chassis with in 36” of the amp.
1. Connect the amp LINE INPUTS to the Radio/CD player full range or mono line out - Be sure to remove any paint or primer from the ground point.
puts with good quality RCAinterconnect cables. - Use a nut, bolt and lock washer to secure the ground cable to the chassis ground.
2. Plug in the GPR-1 bass remote module into the amp REMOTE INPUT jack. This will 6. Make sure the Master amp MASTER/SLAVE switch is in the MASTER position.
allow the Master amp to control both Master and Slave amps with just one Remote.. Make sure the Slave amp MASTER/SLAVE switch is in the SLAVE position.
3. Connect an RCAjumper cable from the Master amp MASTER OUTPUT to the 7. Connect the subwoofer(s) in accordance to the diagrams below.
Slave amp SLAVE INPUT. Note: This will “link” the amps so that the Master amp 8. Connect a 12 gauge jumper from Master amp speaker - to Slave amp speaker - as
crossover switches will control both the Master and Slave amps. The Slave amp shown below.
crossover switches will be bypassed.
4. Route two 0 gauge power cables directly to the vehicle battery with an in-line fuse.
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.
GPV3000.1D PRO D CLASS 1 CHANNEL AMPLIFIER APPLICATIONS
Basic application
DESIGNATED
MONO OUTPUT
FROM HEAD UNIT
MONO
SUBWOOFER
OUTPUT
MASTER
INPUT
SLAVE
IN OUT
L
R
L
R
15 35Hz 0dB 10dB 35 250Hz 0 180 9V 0.2V PRO
INPUT OUTPUT BALANCED SUBSONIC BASS EQ REMOTE LOW PA SS PHASE LEVEL PWR
INPUT
MIN MAXX
GPR-1
REMOTE TURN-ON
CHASSIS GROUND
TO BATTERY + 12 Volts
VIA FUSE
+12V GND
POWER SPEAKER
REM +
-+
-
Linking two amps for single or dual subwoofer application
MASTER
SLAVE
DESIGNATED
MONO OUTPUT
FROM HEAD UNIT
SINGLE REMOTE,
CONNECTED TO MASTER
AMP, USED TO CONTROL
BOTH AMPS WHEN LINKED
OUTPUT
MASTER
INPUT
SLAVE
IN OUT
L
R
L
R
15 35Hz 0dB 10dB 35 250Hz 0 180 9V 0.2V P RO
INPUT OUTPUT BALANCED SUBSONIC BASS EQ REMOTE LOW PASS PHASE LEVEL PWR
INPUT
MIN MAXX
GPR-1
SPEAKER
REM +
-+
-
OUTPUT
MASTER
INPUT
SLAVE
IN OUT
L
R
L
R
15 35Hz 0dB 10dB 35 250Hz 0 180 9V 0.2V PRO
INPUT OUTPUT BALANCED SUBSONIC BASS EQ REMOTE LOW PASS PHASE LEVEL PWR
INPUT
+12V GND +12V GND
POWER POWER
SPEAKER
REM +
-+
-
SUBWOOFER
12 GAUGE JUMPER WIRE
RCA JUMPER CABLE
MASTER OUTPUT TO SLAVE INPUT
Amplifiers are stable to 2ohms when linked
OUTPUT
MASTER
INPUT
SLAVE
OUTPUT
MASTER
INPUT
SLAVE
+12V GND
POWER SPEAKER
REM +
-+ -
+12V GND
POWER SPEAKER
REM +
-+ -
TWO SUBWOOFERS /
TWO AMPLIFIERS
NOT LINKED
- + - +

9
6

10
SETTING UP SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE
GPV2000.1 / GPV3000.1D PRO
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!
GPV700.2 / GPV1000.2 / GPV1000.4 / GPV1600.4
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.
2 or 3 way active systems (all):
Alwaysstartwiththebass,orlowfrequencyamplifierasareference,byturningitscontroluptothepointwheredistortionisaudible,andbackitoffsome.
Nowadjustthelevelcontrolforthehighsortweeterchannelsina2wayactivesystem,tobalancethehighstolows.
Ina 3way activesystem, matchthe midrangelevelto thebass, andthen thehighs tothe midrangeand bass.Itmay benecessary toperform afew iterationsofthe midrangeand highslevel

TROUBLESHOOTING A SYSTEM
11
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 all GROUND POUNDER amplifiers
Thediagnosticsystem willshutdown theamplifier,until resetby turningthe headunit off,andback on.This stateof affairswillbe indicatedby the frontpanelPROTECT
LEDlightingupunderthefollowingconditions:
1-Asortcircuitontheloudspeakerleads.
2-AninternalamplifierfaultthatcausesaDCoffsetontheloudspeakeroutput.
Shouldtheamplifiergointoprotectmode,simplydisconnectallRCAandspeakerleads,whilekeeping+12volt,powergroundandremoteleadsconnected.
1.Nowturntheamplifierbackon,andifthediagnosticLEDlights,theamplifierhasaninternalfault.
2.Ifnot,plugtheRCAcablesback,andresettheamplifier.Ifitgoesintodiagnosticnow,thefaultliesintheinput,eitherwithbadcablesorsourceunit.
3.Iftheamplifierseems finewith RCAcablespluggedin,connectthespeakers,oneatatime,andifoneofthespeakersoritswiringisfaulty,it willactivate thediagnostic
system.
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 +12volt andremote turnon voltagesat the amplifier terminals. Ifthese arenon existentor low, takevoltage measurementsat fuseholders, distribution
blocks,theheadunit’s+12voltandremoteleadstolocalizetheproblem.
Noise problems
Systemnoisecanbedividedintotwocategories,hiss,andelectricalinterference.
Hiss, or white noise
1-Highlevelsofwhitenoiseusuallyoccurswhenamplifierlevelcontrolsareturneduptoohigh-readjustaccordingtotheproceduresinsection”Setting up systems after
installation for best performance”
2-Anothermajorproblemthatcancauseexcessivehiss,isanoisyheadunit-unplugtheamplifierinputRCAcables,andifthehisslevelreduces,thesourceunitisatfault.
Electrical interference
Theinsideofanautomobileisaveryhostileelectricalenvironment.Themultitudeofelectricalsystems,suchastheignitionsystem,alternator,fuelpumps,airconditioners,
tomentionjustafew,createradiatedelectricalfields,aswellasnoiseonthe+12voltsupplyandground.Remembertoisolatetheproblem-firstunplugamplifierinputRCA
cables,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.

12
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.
CRUNCH

PART#: S1208