MTX Audio Thunder4122 Introduction, Features, Specifications, Congratulations, Amplifiers

AMPLIFIERS

Introduction

Features

CONGRATULATIONS...

ENGLISH	on your purchase of a new MTX Audio
	Thunder Amplifier! MTX has long been
	the industry leader in mobile enclosures
	and speakers, and we have reached
	new heights with the development of the
	new MTX Thunder amplifiers. You
	couldn’t have chosen a more reliable,
	powerful, or better performing amplifier.
	In fact, we back up every Thunder
	amplifier with a three-year warranty if
	installed by an authorized MTX Audio
	retailer (see the warranty statement).

must meet or exceed the rated specification before we’ll ship it. No questions. No exceptions.

We want to ensure you get continuous high performance from your MTX Thunder amplifier, so we recommend that you have it professionally installed by your authorized MTX dealer.

HOW TO USE THIS MANUAL

If you are installing this amplifier yourself, we recommend that you read the manual cover-

•Unique rubber Insulated Iso-Feet™ (Patent# 5,521,792)

•Nickel-plated, heavy duty terminal block type connectors

•Speaker and low level inputs

•Input select 2CH / 4CH switch on Thunder4244 functions as a built-in Y connector

•Color-coded wire harness for speaker-level input installation

•Smart-Engage™ auto-turn on for easy integration with factory head units

•Built-in, defeatable18dB/octave HP/LP crossover at 85 Hz

•Thunder4244 Front channel crossover is a defeatable18dB/octave, high pass, at 85Hz

•Adjustable input sensitivity

•Bridgeable, multi-channel circuit design

•Regulated PWM Mosfet Switching Power Supply

•New, more reliable high powered transformers

•Buffered, isolated output for daisy chaining multiple amplifiers

•Pure N-Channel Design

•Intelligent Surface Mount Technology

•Class A 100% discrete driver circuit topology

•Real Time Computerized Protection Circuit

•Anti-Shock PCB mounting design

•Acoustically Seamless Turn-on/Turn-off

Specifications

Your new MTX Thunder amplifier was designed, built and thoroughly tested at our state-of-the-art electronics manufacturing facility in Phoenix, Arizona. We manufacture every amplifier using the latest Intelligent Surface Mount Technology. Some of the advantages of the new design are its signifi- cant improvements to the amplifier’s electrical and mechanical properties. ISMT devices feature substantially shorter internal and external lead lengths. This reduces stray capacitance and inductance, which results in cleaner and more accurate musical reproduc- tion with significantly less noise interference. The ISMT mounter produces amplifier boards

to-cover before you install it. Familiarize yourself with the features and details on the input and output panels. Make sure you have all the equipment you need. Then follow the step-by-step installation instructions included. Sample installation diagrams may be found on our website:

mtx.com

If you have any questions, write or call us:

MTX Audio

4545 E. Baseline Rd. Phoenix, AZ 85042

602-438-4545 • 800-CALL MTX

technical@mtx.com

Thunder4122

RMS Power measured at 12.5 Volts DC:

30 Watts x 2 into a 4 Ohm load with less than 1% THD 60 Watts x 2 into a 2 Ohm load with less than 1% THD

120 Watts bridged into a 4 Ohm load with less than 1% THD

Dynamic Power measured at 14.4 Volts DC: 50 Watts x 2 into a 4 Ohm load

80 Watts x 2 into a 2 Ohm load

200 Watts bridged into a 4 Ohm load

Signal to Noise Ratio: 100dB A-Weighted (Referenced to Rated PWR at 1VRMS Input Sensitivity)

Damping Factor: >200

Frequency Response: 20-20,000 Hz ±.25dB

Defeatable 18dB/octave crossover at 85 Hz, selectable for high pass, low pass.

Dimensions: 5.63" x 9.75" x 2" (14.3cm x 24.8cm x 5.1cm)

7.98" x 9.75" x 2.1" (20.3cm x 24.8cm x 5.3cm) Including IsoFeet™

Thunder4202

RMS Power measured at 12.5 Volts DC:

50 Watts x 2 into a 4 Ohm load with less than 1% THD

100 Watts x 2 into a 2 Ohm load with less than 1% THD

200 Watts bridged into a 4 Ohm load with less than 1% THD

Dynamic Power measured at 14.4 Volts DC: 85 Watts x 2 into a 4 Ohm load

140 Watts x 2 into a 2 Ohm load

280 Watts bridged into a 4 Ohm load

Signal to Noise Ratio: 100dB A-Weighted

(Referenced to Rated PWR at 1VRMS Input Sensitivity) Damping Factor: >200

Frequency Response: 20-20,000 Hz ±.25dB

Defeatable18 dB/octave crossover at 85 Hz, selectable for high pass, low pass.

Dimensions: 7" x 9.75" x 2" (17.8cm x 24.8cm x 5.1cm)

9.3" x 9.75" x 2.1" (23.6cm x 24.8cm x 5.3cm) Including IsoFeet™

with smaller and lighter components, which are more resistant to vibrations inherent in the automotive environment.

A word about power ratings. It is important for you to know how they stack up. MTX has chosen the most honest, most conservative way to rate our amps. We show you the RMS power, at 12.5 volts, and dynamic power at 14.4 volts. However, we go above and beyond the call of duty. We test each amplifier. The technician records the “actual” power output, and records this number on your Certified Performance Certificate. The amplifier

mtx.com

Please take a moment to register your

purchase on line at mtx.com.

Please also record the serial number of your amplifier in the space provided below and keep this manual for future reference, as well as your sales receipt as proof of ownership. (The serial number of your amplifier is marked on the bottom of its metal chassis.)

Serial Number:

Date of Purchase:

Thunder4244

RMS Power measured at 12.5 Volts DC:

45 Watts x 4 into a 4 Ohm load with less than 1% THD 60 Watts x 4 into a 2 Ohm load with less than 1% THD

120 Watts x 2 bridged into a 4 Ohm load with less than 1% THD

Dynamic Power measured at 14.4 Volts DC: 55 Watts x 4 into a 4 Ohm load

100 Watts x 4 into a 2 Ohm load

200 Watts x 2 bridged into a 4 Ohm load

Signal to Noise Ratio: 100dB A-Weighted (Referenced to Rated PWR at 1VRMS Input Sensitivity)

Damping Factor: >200

Frequency Response: 20-20,000 Hz ±.25dB

Defeatable 18dB/octave crossover at 85 Hz, selectable for high pass, low pass, or full range on rear channels and high pass or full range for front channels.

Dimensions: 9.2" x 9.75" x 2" (23.4cm x 24.8cm x 5.1cm)

11.5" x 9.75" x 2.1" (29.2cm x 24.8cm x 5.3cm) Including IsoFeet™

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