Maxxsonics Stereo Amplifier TXi10080 User Manual

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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 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. Titan 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. Titan specifications  
can be found on page 9.  
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  
TITAN TXi SERIES 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 Hifonics 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 listed below for each model.  
! 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.  
TXi4008 / TXi6008 2-CHANNEL AMPLIFIERS  
TheX-OVERslide switch selects theinternal crossover functions:  
-The input signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting  
simplifying daisy chaining ofamplifiers.  
-HPF:Selects thebuilt in HIGHPASSfilter, variable from 60Hz to1.2kHz.  
-FULL:Bypasses all crossovers forfull 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  
forbridging operation  
LINE OUT LINE INPUT  
X-OVER  
MODE  
LEVEL  
5V 0.2V  
BASS EQ  
HPF  
LPF  
L
L
+
- gnd -  
HI INPUT  
+
FULL LPF HPF MONO  
STEREO  
0dB 12dB 60Hz 1.2KHz 30Hz 250Hz  
R
R
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.  
NotethattheLOW PASSsignal isMONO.  
-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 isalsoswitched in.  
TXi4408 / TXi6408 4-CHANNEL AMPLIFIERS  
The 4 channel amps have the same features as the 2 channel models accept that there are 2 sets of  
controls.  
1set forchannels 1&2and1set forchannels 3&4.  
CHANNEL 3 / 4  
In addition, the 4 channel models have a Mode switch which allows you to select 2, 3 or 4 channel  
operation.  
TheX-OVERslide switch selects theinternal crossover functions:  
-The input signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting  
simplifying daisy chaining ofamplifiers.  
-HPF:Selects thebuilt in HIGHPASSfilter, variable from 60Hz to1.2kHz.  
-FULL:Bypasses all crossovers forfull 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  
forbridging operation  
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.  
LEVEL BASS EQ HPF  
LPF  
CH3 CH4  
- gnd -  
LINE OUTPUT  
X-OVER  
MODE  
LINE INPUT  
R
R
+
+
2
CHANNEL  
3
4
5V 0.2V  
0dB 12dB 60Hz 1.2KHz 30Hz 250Hz  
FULL LPF HPF  
X-OVER  
HI INPUT  
- gnd -  
LEVEL BASS EQ HPF  
LPF  
+
+
L
L
CH3/4  
CH1/2  
CH1 CH2  
5V 0.2V  
0dB 12dB 60Hz 1.2KHz 30Hz 250Hz  
CHANNEL 1 / 2  
FULL LPF HPF  
Notethat the LOW PASSsignal isMONO.  
-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 isalso switched in.  
TXi7508 1-CHANNEL A/B-CLASS MONO AMPLIFIERS  
LINEINPUT:Accepts unbalanced RCAinputs from 0.2volts to6volts.  
OUTPUT INPUT  
REMOTE  
CONTROL  
SUB  
SONIC  
LEVEL:The input level control allows you to match the amplifier input sensitivity to the output level of  
theRADIO/CDsource from 0.2volts to6volts.  
REMOTE:TheRJ45Remotejack accepts theBass RemoteModule.  
BASS EQ  
LPF  
LEVEL  
POWER  
L
PROTECT  
0dB 12dB  
15Hz 55Hz  
40Hz 150Hz  
6V  
0.2V  
BASSEQ:TheBass Boostis fully adjustable from 0to12dBat45Hz.  
R
SUBSONIC:Thevariable Subsonic filter is fully adjustable from 15Hzto55Hz.  
LPF:Thebuilt-in lowpass frequencies arefully variable from 40to150Hz.  
POWER:Indicates thattheamp has power, groundandremote turn-oninputvia agreenL.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. See the trouble  
shootingguidein theback ofthemanual fordetails.  
Themonoampsarecapableof 4, 2&1-Ohm loads.  
Operating the amp below 1-Ohm can cause damage to the  
ampnotcoveredin thewarranty.  
TXi1008D / TXi1508D 1-CHANNEL D-CLASS MONO BLOCK AMPLIFIERS  
-The LINE INPUT signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER  
setting simplifying daisy chaining ofamplifiers.  
-SUBSONIC:Allows you toadjust thecrossover filter from 15Hzto35Hz.  
-LPF:Allows yo toadjust theLOW PASScrossover filter from 35Hzto250Hz.  
LEVEL: Adjusts theinput sensitivity from 0.2volts to9volts.  
INPUT OUTPUT  
BALANCED LEVEL  
INPUT  
PHASE  
REMOTE  
BASS EQ  
SUBSONIC  
LOW PASS  
PWR  
L
L
9V  
0.2V  
0
180  
0dB 10dB  
15  
35Hz 35 250Hz PRO  
R
R
BASSEQ:TheBass EQis adjustable from 0dBto10dB.  
REMOTE:This is theinput jack fortheunder-dashbass remotemodule.  
LINEINPUT:Theline input accepts unbalanced (RCA)inputs from 0.2Vto9V.  
LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy  
chain multiple amplifiers from onesignal.  
Themono ampsarecapable of4, 2&1-Ohm loads.  
Operating the amp below 1-Ohm can cause damage to the  
ampnot coveredinthe warranty.  
2
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TXi4008 / TXi6008 2 CHANNEL AMPLIFIER APPLICATIONS  
FULL RANGE STEREO  
This is themost basic application fortheTITANSeries 2 channel amplifiers.  
N/Afor full rangeoperation.  
4. LineLevel:  
Referto thesection “Settingupsystems afterinstallation forbest performance”.  
1. Interconnectcablechecklist:  
ConnecttheLINEINPUTStotheRadio/CD withgoodquality RCAcables.  
2. CrossoverSwitch:  
TheX-OVERswitch must bein the FULLposition.  
NOTE:Minimum finalloudspeakerimpedances:  
4&-2-Ohmsstereomodeor4-Ohms monomode  
Thisamplifierwill not do1-Ohm stereoor2/1-Ohm monooperation.  
3. Crossoverfrequencycontrolchecklist:  
FULL RANGE  
STEREO LINE INPUT  
FULL RANGE  
SPEAKERS  
TO BATTERY + 12 volts VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
FULL RANGE MONO  
This application illustrates the basic mono bridging method for all Hifonics 2 channel  
amplifiers.  
Switch settingchecklist:  
-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 the output stage of that  
source.  
Crossoverfrequencycontrolsettingchecklist:  
N/Afor full 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 low pass 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 +, and its negative  
terminal to LEFT-.  
Minimum final loudspeakerimpedance:  
- 4-Ohms mono.  
FULL RANGE  
MONO SPEAKER  
FULL RANGE  
MONO LINE INPUT  
VIA Y-ADAPTER  
FROM MONO SOURCE  
TO BATTERY + 12 volts VIA FUSE  
REMOTE TURN-ON  
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 both connectors for 4 CH amplifiers  
Use this connector for 2 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 +  
3
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TXi4008 / TXi6008 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  
to determine maximum amplifier powerrequirements.  
Lows amplifier:  
-HIPASS(Subsonicfilter):10Hzto 40Hz  
-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 with a  
stereo RCAto RCAcable.  
Please note that these frequency points are suggestions only. Refer to the loudspeaker  
manufacturer specifications and the section “Setting up systems after installation for best  
performance”  
Mono basswooferwiring:  
Connect the mono speaker positive terminal to the RIGHT +, and its negative terminal to  
LEFT -.  
Levelcontrolchecklist:  
-Referto thesection “Setting upsystems afterinstallation for best performance”  
Minimum final loudspeakerimpedances:  
-2-Ohms perchannelstereo.  
-4-Ohms monobridged.  
Switchsettingchecklist:  
- Highsamplifier: X-OVERswitch in the HPFposition.  
- Lows amplifier: X-OVERswitch in the LPFposition.  
Crossoverfrequencycontrolchecklist:  
Highsamplifier:  
- HIPASS:100Hz  
- LOW PASS:N/A  
FULL RANGE  
STEREO LINE INPUT  
STEREO  
HIGHS  
SPEAKERS  
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  
4
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TXi4408 / TXi6408 / 4 CHANNEL AMPLIFIER APPLICATIONS  
4 CHANNEL FULL RANGE SYSTEM  
Here we show how to use the 4 channel amplifiers as straightforward discrete 4 channel  
full rangeunits.  
Channels3/4:  
-HIPASS:N/A  
-LOW PASS:N/A  
Interconnectcablechecklist:  
- Connectthefourinputs oftheamplifier to aRadio/CDwith quality RCAcables.  
Levelcontrolchecklist:  
-Referto thesection “Setting upsystems afterinstallation for best performance”  
Switchsettingchecklist:  
- 1/2CHX-OVER: FULL  
- 3/4CHX-OVER: FULL  
Minimum final loudspeakerimpedances:  
-2-Ohms perchannel.  
Crossoverfrequencycontrolchecklist:  
Channels1/2:  
- HIPASS:N/A  
- LOW PASS:N/A  
FULL RANGE  
SPEAKERS  
FULL RANGE  
STEREO LINE  
INPUTS  
TO BATTERY + 12 Volts VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
FULL RANGE  
SPEAKERS  
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 Hifonics amplifiers.  
Crossover frequency control checklist:  
Channels 1/2:  
- HI 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 the example to  
also mono bridge channel pair 1 / 2.  
- LOW PASS: N/A  
Channels 3/4:  
- HI PASS: N/A  
- LOW PASS: N/A  
Interconnect cable checklist:  
- Connect the inputs of channel pair 1/2 to a suitable stereo source, e.g. a head unit  
with good quality RCA cables.  
- A MONO 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,  
or built into a head unit or equalizer.  
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 low pass  
rolloff.  
Important: Do not be tempted to connect the hot, or positive outputs, from any source  
together to obtain a mono signal, as this could very well damage the output stage of  
that source.  
Level control checklist:  
- Refer to the section “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-adapter  
RCA cable.  
- Connect the mono speaker positive terminal to the LEFT +, and its negative terminal  
to RIGHT - as shown.  
Switch setting checklist:  
Minimum final loudspeaker impedances:  
- 2-Ohms per channel in stereo mode.  
- 4-Ohms mono bridged.  
- 1/2CH X-OVER: FULL  
- 3/4CH X-OVER: FULL  
MONO  
FULL RANGE  
LINE INPUT  
MONO  
OR SUB BASS  
SPEAKER  
STEREO  
FULL RANGE  
LINE INPUTS  
TO BATTERY + 12 Volts VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
STEREO  
FULL RANGE  
OR HIGHS  
SPEAKERS  
5
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TXi4408 / TXi6408 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 3 and 4 for mono  
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 a Y-adapter as  
shown.  
Please note that these frequency points are suggestions only. Refer to the loudspeaker  
manufacturer specifications and the section “Setting up systems after installation for best  
performance”  
Mono basswooferwiring:  
- Connect the mono speaker positive terminal to the LEFT +, and its negative terminal to  
RIGHT-.  
Levelcontrolchecklist:  
Referto thesection “Settingupsystems after installation forbest performance”  
Minimum final loudspeakerimpedances:  
-2-Ohms perchannelinstereomode.  
-4-Ohms monobridged.  
Switchsettingchecklist:  
- 1/2CHX-OVER: HP  
- 3/4CHX-OVER: LP  
Crossoverfrequencycontrolchecklist:  
Channels1/2:  
- HIPASS:100Hz  
- LOW PASS:N/A  
MONO INPUT  
CHANNELS  
3 AND 4  
MONO  
BASS  
SPEAKER  
FULL RANGE  
STEREO INPUT  
CHANNELS  
1 AND 2  
TO BATTERY + 12 Volts VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
STEREO  
HIGHS  
SPEAKERS  
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 of bass to highs,  
with thefront torear fadeontheheadunit.  
Interconnectcablechecklist:  
-Use goodquality RCAleads to connect theinputs of theamplifier to thesource as shown.  
-Follow theinstructions as per theprevious system forswitch andcrossover settings.  
Channels 1and2will beused for highs, andchannels 3and4for mono bass.  
MONO  
BASS  
SPEAKER  
FULL RANGE  
STEREO LINE  
INPUTS  
TO BATTERY + 12 Volts VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
STEREO  
HIGHS  
SPEAKERS  
6
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TXi7508 A/B CLASS 1 CHANNEL AMPLIFIER APPLICATIONS  
Basic application  
These sub bass amplifiers can be used in any of the bi-amplification systems described in  
this manual, replacing the2channel amplifiers as pertheillustrations.  
Crossoverfrequencycontrolchecklist:  
LOW PASS:40Hzto150Hz  
SUBSONIC:15Hzto 55Hz  
BASSEQ:0to+12dB  
Interconnectcablechecklist:  
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA cables.  
ConnecttheLINEOUTtotheinputs of the system highs amplifier.  
Levelcontrolchecklist:  
Referto thesection “Settingupsystems after installation forbest performance”  
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals,  
simplifying thehookup of multiple speakers  
Minimum final loudspeakerimpedance:1-Ohm.  
MONO  
SUBWOOFER  
TO BATTERY + 12 Volts  
VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
DESIGNATED  
MONO OUTPUT  
FROM HEAD UNIT  
MINIMUM 1-Ohm LOAD  
SUBS CAN BE 2-Ohms EACH  
POWER INPUT  
GND REM +12V  
SPEAKER OUTPUT  
FUSE  
+
+
-
-
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.  
7
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TXi1008D / TXi1508D / D CLASS 1 CHANNEL AMPLIFIER APPLICATIONS  
Basic application  
Interconnect cable checklist:  
Minimum final loudspeaker impedance:  
-1ohm.  
- Connect the line inputs to a Radio/CD RCAoutputs or line output of the  
full range primary amplifier with good quality RCAcables. AY” adapter  
may beneeded as shown in thediagram.  
FULL RANGE  
STEREO LINE INPUT  
- Use at least #12 gauge speaker wiring. These amplifiers have dual  
speaker terminals, simplifying thehookup ofmultiple speakers  
Y-ADAPTOR  
Crossover frequency control checklist:  
-LOW PASS:35Hz to250Hz  
-SUBSONIC:15Hzto 35 Hz  
-BASSEQ:0 to 10dB  
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  
-PHASE:0 to 180 degrees  
*
Level control checklist:  
- Refer to the section “Setting up systems after installation for best  
performance”  
DESIGNATED  
MONO LINE INPUT  
*
MONO  
SUBWOOFER  
STEREO LINE  
OUTPUT  
TO BATTERY +12v  
VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
Dual Subwoofer Application  
PARALLEL MONO  
SUBWOOFERS  
2-OHMS EACH MINIMUM  
DESIGNATED  
MONO LINE INPUT  
*
STEREO LINE  
OUTPUT  
MONO  
SUBWOOFERS  
TO BATTERY +12v  
VIA FUSE  
REMOTE TURN-ON  
CHASSIS GROUND  
8
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9
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SETTING UP SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE  
TXi4008 / TXi6008 / TXi4408 / TXi6408  
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 withthebass, or lowfrequency amplifier as areference, by turning its control upto thepoint wheredistortion is audible, andback it offsome.  
Nowadjust thelevel control for thehighs or tweeterchannels in a 2wayactive 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  
TXi7508 / TXi1008D / TXi1508D  
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 0-12dB for the Txi7508 and 0-10dB for the TXi1008D and TXi1508D. 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( TXi1008D and TXi1508D only):  
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.  
DescriptionofthePROTECTsystembuiltintoallTITANamplifiers  
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.  
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.  
11  
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TITAN  
SERIES  
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.  
12  
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