MTX Audio 4405 owner manual Introduction Features, Specifications, New MTX Thunder amplifiers. You

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).

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

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- 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:

•Intelligent Surface Mount Technology

•Patented PWM MOSFET Switching Power Supply (#5,598,325)

•Class A 100% Discrete Driver Circuit Topology

•Class A/B, Amplifier (front and rear)

•Dedicated AdaptiveClass D Sub Channel

•High Powered Transformer

•Pure N-Channel Design (front and rear)

•Doubles power into 2 ohms

•Bridgeable, multi-channel circuit design

•Real Time Computerized Protection Circuit

•18dB/Octave, defeatable/fixed 85Hz HP filter (front and rear)

•18dB/Octave, butterworth fixed 85Hz LP filter x 1 (subwoofer)

•Continuously adjustable and defeatable Bass EQ enhancement circuitry, centered at 40Hz - subwoofer channel only

•Low level inputs

•External Bass Control Port for easy Bass Adjustment via optional EBC unit (subwoofer)

•Front, rear and subwoofer individually adjustable input sensitivity

•Input select allows all channels to be driven using either 2,4 or 5 inputs

•Nickel-plated, heavy duty terminal block type connectors

•2" max height for ease of installation

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

•Bold and Aggressive Heatsink Shape and Size

Specifications

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 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

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

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:

THUNDER4405

RMS Power measured at 12.5 Volts DC:

25 Watts RMS/Ch x 4 into 4 Ohms with less than 1% Thd+N 50 Watts RMS/Ch x 4 into 2 Ohms with less than 1% Thd+N

100 Watts RMS bridged x 2 into 4 Ohms with less than 1% Thd+N

Subwoofer

100 Watts RMS into 4 Ohms with less than 1% Thd+N 200 Watts RMS into 2 Ohms with less than 1% Thd+N

Dynamic Power measured at 14.4 Volts DC Front and Rear

65 Watts x 4 into a 4 Ohm load

125 Watts x 4 into a 2 Ohm load

250 Watts bridged x 2 into a 4 Ohm load

Subwoofer

150 Watts x 1 into a 4 Ohm load

300 Watts x 1 into a 2 Ohm load

Signal to Noise Ratio: ≥ 100dB A-Weighted (front and rear)

Signal to Noise Ratio: ≥ 90dB A-Weighted (subwoofer)

Damping Factor: >200

Frequency Response: 20Hz-20kHz±0.25dB (front and rear) 20Hz - 85Hz (subwoofer)

Bass EQ: Variable Bass Boost (0-18dB) centered at 40Hz (subwoofer)

Crossover: Fixed 85Hz, 18dB/Octave, HP Defeatable (front and rear) Fixed 85Hz, 18dB/Octave, LP (subwoofer)

Dimensions:

13.2" x 9.75" x 2" (33.5cm x 24.8cm x 5.1cm)

15.5" x 9.75" x 2.1" (39.5cm x 24.8cm x 5.3cm) Including IsoFeet™

2

3