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Total Mobile Audio

 

 

 

 

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Planning Your installation

It is important that you take the time to read  

this manual and that you plan out your 
installation carefully. The following are some 
considerations that you must take into account 
when planning your installation. 
 

Cooling efficiency Considerations: 

The outer shell of your TMA amplifier is 

designed to remove heat from the amplifier 
circuitry. For optimum cooling performance, this 
outer shell should be exposed to as large a volume 
of air as possible. Enclosing the amplifier in a 
small, poorly ventilated chamber can lead to 
excessive heat build-up and degraded 
performance. If an installation calls for an 
enclosure around the amplifier, we recommend 
that this enclosure be ventilated with the aid  
of a fan. In normal applications, fan-cooling  
is not necessary. 

 

Mounting the amplifier upside down is  

strongly discouraged.

If mounting the amplifier under a seat,  

make sure there is at least 1 inch (2.5 cm) of  
space above the amplifier’s outer shell to permit  
proper cooling.

safety Considerations: 

Your amplifier needs to be installed in a dry,  

well-ventilated environment and in a manner  
which does not interfere with your vehicle’s safety 
equipment (air bags, seat belt systems, ABS brake 
systems, etc.). You should also take the time to 
securely mount the amplifier so that it does not 
come loose in the event of a collision or a sudden 
jolt to the vehicle. 
 

stupid mistakes to avoid 
•  

Check before drilling any holes in your vehicle 
to make sure that you will not be drilling 
through a gas tank, brake line, wiring harness or 
other vital vehicle system.

•  Do not run system wiring outside or underneath 

the vehicle. This is an extremely dangerous 
practice which can result in severe damage to 
your vehicle and person.

•  Protect all system wires from sharp metal  

edges and wear by carefully routing them,  
tying them down and using grommets and  
loom where appropriate.

•  Do not mount the amplifier in the engine 

compartment, under the vehicle, on the roof  
or in any other area that will expose the 
amplifier circuitry to the elements. 

ProteCt Your Hearing! 

We value you as a long-term customer. For 

that reason, we urge you to practice restraint in 
the operation of this product so as not to damage 
your hearing and that of others in your vehicle. 
Studies have shown that continuous exposure to 
high sound pressure levels can lead to permanent 
(irreparable) hearing loss. This and all other 
high-power amplifiers are capable of producing 
such high sound pressure levels when connected 
to a speaker system. Please limit your continuous 
exposure to high volume levels.

While driving, operate your audio system in 

a manner that still allows you to hear necessary 
noises to operate your vehicle safely (horns, 
sirens, etc.).

serial number  

In the event that your amplifier requires 

service or is ever stolen, you will need to have 
a record of the product’s serial number. Please 
take the time to enter that number in the space 
provided below. The serial number can be found 
on the bottom panel of the amplifier and on the 
amplifier packaging. 
 

Serial Number:  

 

installation aPPliCations

This amplifier is designed for operation in 

vehicles with 12 volt, negative-ground electrical 
systems. Use of this product in vehicles with 
positive ground and/or voltages other than 12V 
may result in damage to the product and will void 
the warranty.

This product is not certified or approved for 

use in aircraft.

Do not attempt to “bridge” the outputs of this 

amplifier with the outputs of a second amplifier, 
including an identical one.

HP | Off | LP

Filter Mode

High-Pass

Low-Pass

Filter Frequency (Hz)

Filter Frequency (Hz)

Input Sens.

Input Sens.

CH 3&4

Input From

min max

min max

60

1.2k

High-Pass

60

1.2k

40

150

Low-Pass

40

150

Off +12dB

High-Level Inputs

High-Level Inputs

Bass Boost

HP | Off | LP

Filter Mode

1&2 | 3&4

Off +12dB

Bass Boost

Channel 3 & 4 Controls

CH 1 (Left)

CH 3 (Left)

Protect

Channel 1 & 2 Controls

Power

CH 2 (Right)

LEFT

RIGHT

CH 4 (Right)

Pre-Outs

Amplifier Inputs

a JL Audio® Company

Protection Status 

Indicator

(pg. 11)

Low-Pass Filter

Frequency Control

(pg. 8)

Input Sensitivity

Control

(pg. 7)

Input Sensitivity

Control

(pg. 7)

Filter Mode

Selector

(pg. 8)

Filter Mode

Selector

(pg. 8)

Channel Input

Selector

(pg. 7)

Left & Right

Preamp Output Jacks

(pg. 9)

High-Level

Input Jack

(pg. 6,7)

Power Status 

Indicator

(pg. 11)

Bass Boost

Control

(pg. 9)

Bass Boost

Control

(pg. 9)

High Level

Input Jack

(pg. 6,7)

High-Pass Filter

Frequency Control

(pg. 8)

High-Pass Filter

Frequency Control

(pg. 8)

Low-Pass Filter

Frequency Control

(pg. 8)

CH 1 & CH 2

Preamp Input Jacks

(pg. 6)

CH 3 & CH 4

Preamp Input Jacks

(pg. 6)

Remote Turn-On 

Connector

(pg. 6)

CH 1 & CH 2

Speaker Outputs

(pg. 9)

CH 3 & CH 4

Speaker Outputs

(pg. 9)

+12 V Power 

Connector

(pg. 5)

Fuses

(pg. 5)

Chassis Ground 

Connector

(pg. 5)

Made in China

CHANNEL 1 (L)

CHANNEL 2 (R)

Bridged

Bridged

CHANNEL 3 (L)

CHANNEL 4 (R)

FUSES

+ 12VDC

30A

30A

Remote

Ground

a JL Audio® Company

Summary of Contents for T2-320.4

Page 1: ... expertise and installation equipment to ensure optimum performance from this product Should you decide to install the amplifier yourself please take the time to read this manual thoroughly so as to familiarize yourself with its installation requirements and setup procedures If you have any questions regarding the instructions in this manual or any aspect of your amplifier s operation please conta...

Page 2: ...h sound pressure levels can lead to permanent irreparable hearing loss This and all other high power amplifiers are capable of producing such high sound pressure levels when connected to a speaker system Please limit your continuous exposure to high volume levels While driving operate your audio system in a manner that still allows you to hear necessary noises to operate your vehicle safely horns ...

Page 3: ... R Bridged Bridged CHANNEL 3 L CHANNEL 4 R FUSES 12VDC 30A 30A Remote G Product Description The Total Mobile Audio T2 320 4 is a four channel full range audio amplifier utilizing Class B technology for all channels The T2 320 4 can be operated with a wide variety of source units and system configurations For detailed specifications please refer to Appendix B page 13 Typical Installation Sequence T...

Page 4: ...ond the maximum level established during the procedure outlined in Appendix A page 12 Doing so will result in audible distortion and possible speaker damage Turn On Lead The T2 320 4 is turned on and off using a conventional 12V remote turn on lead typically controlled by the source unit s remote turn on output FUSES 12VDC 30A 30A Remote Ground a JL Audio Company The amplifier will turn on when 12...

Page 5: ...ndesired frequencies from making their way through the amplifier sections to the speaker s This serves to improve tonal balance and to avoid distortion and possible speaker failure Correct use of these filters can substantially increase the longevity and fidelity of your audio system HP Off LP Filter Mode High Pass Low Pass Filter Frequency Hz Filter Frequency Hz Input Sens Input Sens CH 3 4 Input...

Page 6: ...stions about the installation or setup of the amplifier not covered in this manual please contact your dealer or technical support TMA Technical Support 954 443 1100 9 00 AM 5 30 PM Eastern Time Zone Monday Friday Bridging Considerations Bridging is the practice of combining the output of two amplifier channels to drive a single load When bridged each channel produces signals of equal magnitude bu...

Page 7: ...cessing bass treble loudness EQ etc on the source unit processors if used and amplifier Set fader control to center position and subwoofer level control to 3 4 of maximum If connected set the amplifier s Remote Bass Control at maximum full clockwise 3 Turn the Input Sens control all the way down 4 Set the source unit volume to 3 4 of full volume This will allow for reasonable gain overlap with mod...

Page 8: ...wire connectors are designed to accept up to 8 AWG wire Make sure to strip the wire to allow for a sufficient connection with the metal inside the terminal block How do I properly set the input sensitivity on my amplifier Please refer to Appeaset the input sensitivity for maximum low distortion output My amplifier doesn t turn on Check the fuse not just visually but with a continuity meter It is p...

Page 9: ...ilter Frequency Hz Input Sens Input Sens CH 3 4 Input From min max min max 60 1 2k High Pass 60 1 2k 40 150 Low Pass 40 150 Off 12dB High Level Inputs High Level Inputs Bass Boost HP Off LP Filter Mode 1 2 3 4 Off 12dB Bass Boost Channel 3 4 Controls CH 1 Left CH 3 Left Protect Channel 1 2 Controls Power CH 2 Right LEFT RIGHT CH 4 Right Pre Outs Amplifier Inputs a JL Audio Company ...

Page 10: ...18 Total Mobile Audio 19 INSTALLATION NOTES INSTALLATION NOTES ...

Page 11: ... thereafter Some states do not allow limitations on implied warranties therefore these exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state If you need service on your JL AUDIO product All warranty returns should be sent to TMA s Amplifier Service Facility freight prepaid through an authorized TMA dealer and...

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