400-WATT RMS 4-CHANNEL CLASS A/B AMPLIFIER
Feel the Thunder
MTX THUNDER..A name synonymous with car audio for over 20 years has become known for power, performance, and reliability. The THUNDER line of amplifiers has seen numerous technological advancements throughout its life and continues to be one of the most recognized and sought after products in the car audio world today.
The MTX THUNDER75.4 4-channel amplifier is the product of many of those advancements. It delivers the music to your speakers creating a true “Concert Level Sound” without losing any fidelity or quality.
Technologically Advanced
This amp features a Class A/B circuit design that delivers high fidelity sound output meaning you can enjoy your music as the artist intended it to be heard. The multi-channel design also means that you can configure you speaker system the way you need without running out of power or functionality.
We use surface mount technology to help create the compact design of the amplifier and improve its reliability and resistance to vibration. High grade components are chosen for their quality and to ensure the amplifier delivers maximum power output when you need it without loss of audio resolution.
In addition to the circuit design, we’ve also added the features you need to fine tune your system sound such as the built-in variable gain and crossover controls.
Additionally, we know how important the speaker and power connections are to a properly working sound system. This is why we use set-screw style terminals to provide the most secure connection possible which minimizes any power loss while delivering all the power to the amplifier and to the speakers.
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 THUNDER75.4.
How to Properly Set Your Amplifier's Gain
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Compact Design - The small footprint chassis allows for installation in space challenged vehicles
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Surface Mount PCB Design - Decreases chassis size, improves layout efficiency and increases vibration resistance without sacrificing performance or sound.
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Variable Butterworth Crossover - a 12dB/Oct crossover that allows you to set the frequency your speakers will play down or up to
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Triple Protection Circuitry - Thermal, DC Offset, and Short Circuit Protection circuitry ensures the amplifier will protect itself in the event of a problem
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Extruded Aluminum Heat Sink - The custom heat sink design maximizes heat transfer away from the circuitry protecting the amplifier
- Noise Free Design
- MOSFET Power Supply
| Description | 4-Channel |
| Peak Power (Watts) | 400 |
| 4Ω RMS Power Output | 75W x 4 Channels |
| Signal to Noise Ratio | 80dB |
| 2Ω RMS Power Output | 100W x 4 Channels |
| 4Ω Bridged | 175W x 2 Channels |
| 1Ω RMS Power Output | NA |
| Topology | Class A/B |
| THD | <1% |
| Frequency Response | 15Hz - 25kHz |
| Crossover | Variable LPF 50Hz to 750Hz (Rear), Variable HPF 10Hz-200Hz (Front), Variable HPF 50Hz-750Hz (Rear), 12dB/Oct |
| Max Sensitivity | 200mV |
| Maximum Input Signal | 5V |
| Height | 6.3" |
| Width | 12.13" |
| Depth | 2.25" |
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