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T9515 and XTHUNDER1200.1 Bass Package

MTX XThunder 1200 Watt AmplifierThunder Power

The XTHUNDER1200.1 is the latest evolution of the Thunder amplifier series that MTX Audio made famous almost 20 years ago. This amplifier is designed to deliver extreme power to the this matched T9515-44 fifteen inch SuperWoofer that has set the standard for SPL output over the last 10 years.

Get the party started each time you get in the car with this famous MTX classic.


    Wire, fuse, fuse holder and fittings required to connect amplifier to electrical system.


    Cable to connect source to amplifier


    1000 Watt Superwoofer

    MTX's famous subwoofer with amazing SPL and clarity.

    1200 Watts Of XTHUNDER

    Matching high-powered amp to deliver pure, hard-hitting sound.

    Renowned MTX Sound

    Classic MTX sound will blow the doors off your show car with nothing close in its class.

    The Original 9500 SuperWoofer

    MTX Audio single-handedly created the biggest boom in the history of bass - Thunder 9500, the world's first SuperWoofer! Thunder 9500 stretches the limits of SPL while still providing truly accurate music reproduction. In the simplest of terms, it thunders a wall of sound and still sounds pure and crisp.


    "I have always heard the best about the T9515 don't take them away they still hold the heavy weight belt , best in the game....knock the fillings out of your teeth !"

    Victor - T9500 Review - 9/28/2013

    "I have 2-12" 9500s and still after 6 years they are the best sub I have ever owned."

    Chad - T9500 Review - 11/1/2013

    The T9500 Superwoofer Key Features

    • Die Cast Aluminum Frame Construction for incredible strength and durability
    • 3000 Watts Max Power (1000W RMS) Handling for amazing SPL levels with astonishing clarity
    • 1" Xmax for massive Volume Displacement
    • Up to 260 oz. magnets that deliver incredible power
    • High Roll NBR Surround uses FEA optimized roll geometry to maximize excursion without sacrificing cone surface area
    • Expanded Poly Cone Dust Cap is injection molded, carbon filled, expanded polypropylene with aluminum deposition for dramatically increased stiffness/weight ratio
    • Stitched Cone for added durability and style
    • ALDS Asymmetrical Linear Drive System with a flat progressive spider and extended pole piece for smooth, linear, piston like drive
    • Up to 4" Voice Coils for high power handling and extreme excursion
    • Industry leading thermal power handling using 428°F High Temperature Flat Wound Aluminum Ribbon Wire
    • Industry leading Spider Plateau Venting cooling system cools at the voice coil

    New Breed of THUNDER

    The XTHUNDER1200.1 utilizes highly efficient class D amplifier topology to ensure excellent thermal management under the harshest conditions. Capable of delivering 1200W RMS power into a 1Ω load, the XTHUNDER1200.1 is ideally suited to power MTX SuperWoofers and large, multiple subwoofer deployments.

    Using high end materials and a dedication to precision workmanship, the XTHUNDER Series deliver exceptional sound quality and performance.

    MTX XThunder1200 Car Subwoofer AmplifierXThunder 1200 Key Features:

    • Class D Topology
    • Low Profile Design
    • Variable Low Pass Filter
    • Extruded Aluminum Top Cover
    • Includes EBC Allowing for Bass Adjustment from Driver's Seat

    Built To Drive BIG Sub Systems

    The unit features a dual sided circuit board wiith increased copper traces that maximize electrical transfer and minimize power lost before it gets to your speakers. The surface mount technology, is incredibly durable and vibration resistant, allowing them to be damage resistant even when deployed in big systems. The entire top cover functions as a heat sink with a lot of surface area to effectively dissipate heat so that it can play louder and longer. The top cover includes removable side covers that allow for easy access to connections and settings even after installation.

    The feature set on the XTHUNDER1200.1 is loaded and enables full customization to ensure the best possible sound quality without distortion. Customization includes a low pass filter, subsonic filter, and bass boost that allow you to get exactly the sound you want from your subwoofers.

    • XTHUNDER1200.1 Amplifier
    • Class D Topology - Ensures Excellent Thermal Efficiency

    • Low Profile Design - Allows for Installation Anywhere

    • Extruded Aluminum Top Cover Efficiently Dissipates Heat
    • External Bass Control - Includes EBC Allowing for Bass Adjustment from Driver's Seat
    • T9515-44 Subwoofer
    • Die Cast Aluminum Frame
    • 1" Xmax for Maximum Volume Displacement
    • High Roll NBR Surround for Increased Surface Area
    • ALDS - Asymmetrical Linear Drive System
    • 428 Degree High Temperature Flat Wound Aluminum Ribbon Wire
    • Spider Plateau Venting Cooling Technology Mechanically Targets Cool Air at Voice Coil
    • ZN5K-00 Amplifier Kit
    • 105ºC Ultra-Flex Jacket
    • Optimized Stranding
    • 100% Oxygen Free Copper
    4Ω RMS Power Output 400 Watts
    Signal to Noise Ratio >60dB
    2Ω RMS Power Output 750 Watts
    1Ω RMS Power Output 1200 Watts
    THD <0.2%
    Frequency Response 10Hz - 250Hz
    Maximum Input Signal 5V
    Max Sensitivity 100mV
    Low Pass Filter Variable, 40Hz - 250Hz, 12dB/Oct
    Subsonic Filter 10Hz - 50Hz, 12dB/Oct, Variable
    Bass Boost 12dB @ 45Hz
    Topology Class D
    Depth 8.9" (226.7mm)
    Length 14.2" (359.9mm)
    Height 2.03" (51.5mm)
    RMS Power (Watts) 1000
    Sensitivity 90.3dB
    Voice Coil 4"
    Volume Displacement (cu in) 135.77
    Vented Enclosure Net Volume 2.25 cu ft
    MTX004783 XTHUNDER Series Owner's Manual (32 pages) View | Download
    Data Sheet T9515-44 (4 pages) View | Download
    Test Tone 50Hzmp3 Download