XTHUNDER125.4 500W RMS 4-Channel Class A/B Amplifier

Car Amplifiers

4-Channels of Full Range Force

Big Power for Four High Wattage Speakers

MTX XThunder 1200 Watt AmplifierThunder Speaker Power

The XTHUNDER125.4 is the latest evolution of the Thunder amplifier series that MTX Audio made famous almost 20 years ago. These amplifiers are designed to deliver extreme power to the most demanding systems whether they be subwoofers or full range speakers.

The XTHUNDER125.4 four channel amplifier powers high wattage speaker systems with room to spare, and without added distortion or over-heating during long hours of loud play.

Class A/B Topology 2Ω Stable Bridgeable

Availability: In stock
SKU: XTHUNDER125.4
$549.95
$100.00
$449.95
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The XTHUNDER125.4 utilizes class A/B amplifier topology to deliver the highest sound quality possible. Capable of delivering 125W RMS power per channel into a 2Ω load, the XTHUNDER125.4 is ideally suited to power MTX Signature Series and THUNDER series speakers.

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

MTX XThunder1200 Car Subwoofer AmplifierXTHUNDER 125 Key Features:

  • Class A/B Topology
  • Low Profile Design
  • Variable High Pass Filter
  • Cast Aluminum Top Cover

Built To Drive Powerful Speaker 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 XTHUNDER125.4 is loaded and enables full customization to ensure the best possible sound quality without distortion. Customization includes variable high and low pass filters and the unit can be connected using either high or low level connectors.

Don't Forget The Amp Kit

Remember, you cannot install an amplifier without an amplifier kit. MTX recommends using a ZN5K-04 or ZN5K-08 to power the XTHUNDER125.4.

 

Features
  • Class A/B Topology Delivers Excellent Sound Quality
  • Low Profile Design Allows for Installation Anywhere
  • Cast Aluminum Top Cover Efficiently Dissipates Heat
  • Variable High Pass Crossover
  • Variable Butterworth Crossover 12dB/Oct
  • Fixed Bass Boost Is Ideal for Use with Subwoofers
  • Thermal, DC Offset, and Short Circuit Protection Circuitry
Tech Specs
4 Ohm RMS Power Output 90 Watts x 4
Signal to Noise Ratio >70dB
2 Ohm RMS Power Output 125 Watts x 4
THD <0.2%
Frequency Response 20Hz - 20kHz
Maximum Input Signal 5V
Max Sensitivity 100mV
High Pass Filter Variable, 40Hz - 250Hz, 12dB/Oct Front/Rear
Bass Boost 12dB @ 45Hz
Topology Class A/B
Depth 8.9" (226.7mm)
Length 14.2" (359.9mm)
Height 2.03" (51.5mm)
Support Files
MTX004783 XTHUNDER Series Owner's Manual (32 pages) View |  Download
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