MTX TX480D picture


480W RMS @2Ω 4-channel wide range class-D amplifier with complete variable x-overs


The MTX TX480D 4-channel Amplifier (4x120W RMS @2Ω) is a nugget. He wakes up any speaker, and makes it go straight. It's so small it's hard to believe it's so powerful: 480W RMS total! It operates in Class-D to provide maximum power using minimum current. Its CMS construction is at the top of current technology. Its active x-overs are very flexible, they allow a 4-channel configuration (front + rear speakers) as well as a 3-channel configuration (front speaker + subwoofer/box). It was classified "best class-D amplifier" by the Car & Hifi magazine (9/2017)

(+) Product

  • Wide range Class-D amplifier for speakers and subwoofer
  • Super compact for easy installation
  • Compatible 2Ω stereo and 4Ω bridged
  • Top level components (Elna, IRF..)
  • Complete 12dB/Oct variable active x-over
  • Exceptional sound quality
  • All aluminum construction
  • Thermo-regulated connector for external fan


• 4-channel Class-D amplifier
• CEA2006 certified power
- 4x 80 watts RMS @ 4Ω and THD + N ≤1%
- 4x 120 watts RMS @ 2Ω and THD + N ≤1%
- 2x 240 watts RMS bridged @ 4Ω and THD + N ≤1%
• Active x-over
- High Pass (HPF) 12dB / Oct variable from 40Hz to 400Hz
- Low Pass (LPF) 12dB / Oct variable from 40Hz to 400Hz
• Signal / Noise ratio (1 watt):> 80dB
• THD + Noise (Distortion) (1 watt): ≤1%
• Frequency response (± 1dB): 5Hz-30000Hz
• RCA sensitivity level: 200mV to 6V
• Dimensions: 125mm x 215mm x 50mm
• High level entry

Recommended performance associations

Haut-Parleurs TX4 TX6 TX8 - Subwoofers TX612 TX615


• In 4-channel configuration with the TX4, TX6 or TX8 speakers
• In 3-channel configuration with the TX4, TX6 or TX8 speakers at the front and one TX612 or one TX615 in the trunk
• The TX480D perfectly fits with the TX81000D or the TX6500D subwoofer amplifiers
• Power supply pack: MTX StreetWires ZNX21K

Suggested System Diagrams



The power of the amplifier should not exceed that of the loudspeaker. You have to compare RMS powers with RMS powers. The amplifiers should not be exposed to moisture, excessive vibration, or high temperatures.


MTX wants you to enjoy your hearing for a long time. Excessive exposure to loud volumes can damage your hearing. The United States Department of Labor recommends not exceeding the following recommendations:
90db : maximum 8 hours / day
92dB : maximum 6 hours / day
95db : maximum 4 hours / day
97db : maximum 3 hours / day
100db : maximum 2 hours / day
102db : maximum 90 minutes / day
105db : maximum 60 minutes / day
110db : maximum 30 minutes / day
115db : maximum less than 15 minutes / day
120db : immediate danger, 0 minutes / day

Picture Gallery


What the press says about it...

Car&Hifi (D)

"The best Class-D amp tested"

"He's the most powerful and the one with the best measures"

"Incredible power considering the size"

"He plays with power and spirituality"

"The spatial reproduction is impressive"

What consumers say about it...

Matthew H.

"The TX480D is fantastic, so much power in such a small space. unbelievable…"