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TA8502 Owner’s Manual

Introduction

Thank you for choosing MTX to help reach the ultimate goal with your vehicle. Adding MTX amplifi ers and 

matching MTX speakers and subwoofers with StreetWires connections will put you in a better position to 

hear, feel, and experience all of the music the artist intended. 

Specifi cations

Primary Ratings: 

Power Output: 125 watts RMS x 2-channels at 4 ohm and 

 1% THD+N  

Signal-to-Noise Ratio (1 watt): 74dB 

Secondary Ratings:

Power Output: 250 watts RMS x 2-channels at 2 ohm and 

 1% THD+N

Power Output: 375 watts RMS x 2-channels at 1 ohm and 

 1% THD+N

Power Output: 500 watts RMS x 1 bridged at 4 ohm and 

 1% THD+N

Power Output: 750 watts RMS x 1 bridged at 2 ohm and 

 1% THD+N

THD+Noise (Distortion) (1 watt): 

 .1%

Frequency Response (-3dB): 20Hz-20kHz

Maximum Input Signal: 10V

Maximum Sensitivity: 100mV

Dimensions: 9-5/8” x 20-11/16” x 2-1/2” (245mm x 525mm x 65mm)

Smart Engage™ Auto-Turn-On (Patent No: US06556683)

Patented Pure N-Channel Technology (Patent No: US05631608, US05783970)

Patented Power Supply (US05598325)

Input Sensitivity Switch:  100mV-1V/1V-10V

Crossover: Hi, 12dB / Low, 24dB Mono @ 40Hz-350Hz, Defeat

Subsonic @ 30Hz, 12dB/oct, Defeat

Parametric EQ: Boost/Cut +/-12dB, Freq. 30Hz-80Hz, Q 0.5-4.0

ARC: Cut 0-15dB, Freq. 200Hz

Remote Subwoofer Level Control

Features

1.  Prizm EFX – All MTX amplifi ers include backlit adjustment controls on the top surface of the product.

 

• Color – The backlit controls offer unlimited colors on the display -- from RED, GREEN, and BLUE to any color 

in between. 

 

• EFX – You can switch Prizm EFX lighting to “pulsate” with the beat of the music.

2.  Xtant Technology Cooling (XTC) – A thermal-regulated turbo-charged intercooler supplies fan forced cool air 

evenly and constantly through tightly packed bonded fi ns. Fan speed is continuously variable and controlled 

by the amplifi er’s output, temperature of the heatsink, and transformers. Exhaust from the internal heatsink is 

strategically positioned to cool the transformers to maintain maximum performance at all volumes. 

3.  Bi-Level Inputs with Smart Engage™ – All MTX amplifi ers feature RCA type input connections. All MTX 

amplifi ers allow both high level and line level input into the RCA type input connections. 

 

• Low Level Input – Source units with an output signal level of 100mV–10V may be used.  See “Input 

Sensitivity” for proper voltage level setting.  

 

• High Level Inputs with Smart Engage™ – All MTX amplifi ers allow high level inputs through RCA type input 

connections using provided high level adapters.  Source units with an output signal level of 100mV–10V may 

be used.  See “Input Sensitivity” for proper voltage level setting.  

 

• Smart-Engage™ Auto-Turn-On - An auto-turn-on circuit is included within the amplifi er. A remote turn-on 

wire is not necessary when connecting the amplifi er’s high-level input to a high-powered source unit (car 

stereo). The amplifi er will automatically turn on when music is received through this type of connection.

Note: Smart Engage™ is only active on the left input.

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