SKU: MUD100-4
Sold Individually

400-Watt RMS 4-Channel Powersports Amplifier

Availability: In stock
$299.95 MSRP

Powerful, yet compact, audio amplifier that can be installed on any UTV, sand rail, or motorcycle.

The MTX MUD100.4 is the most compact amplifier that MTX has ever made. This unit features full range class D topology that delivers exceptional sound quality and excellent thermal efficiency. The unit includes 4-channels that are capable of delivering 100-watts RMS power per channel. More than enough power to drive a single or dual full range speakers per channel.

Ask an expert Find a location

Compact And Powerful

The MTX MUD100.4 features full range class D topology that delivers exceptional sound quality and excellent thermal efficiency. The unit includes 4 channels that are capable of delivering 100 watts of RMS power per channel. More than enough power to drive an entire speaker system.

Outdoor Rugged

The entire unit is weather resistant including a conformal coated circuit board and control covers that prevent damage from moisture intrusion. The unique design includes a pigtail that contains all of the wiring necessary to connect power, ground, and signal without having to make a connection directly at the amplifier. This pigtail keeps moisture, dirt, and other hazards from harming the internal components of the unit, ensuring you can enjoy your music wherever the trail takes you.

Use it Wherever

The compact nature of the amplifier and its excellent efficiency make it ideal for a variety of applications including UTV's and motorcycles. The amplifier footprint fits on most OEM motorcycle radios and its resistance to radio frequency interference make it the perfect choice for upgrading the stereo on any motorcycle.

Installation Options

The four channels and full range capability enable the MUD100.4 to drive full range speakers and subwoofers. The unit is bridgeable so four channel of 100-watts RMS power can become two channels of 200-watts RMS power enabling more power to be driven to large cage mount or saddlebag lid speakers so you know you will hear your music at any speed.

Installation Videos

Amplifier Gain Settings

Dimensions & Details


  • Description: 4-Channel
  • 4Ω RMS Power Output: 50W x 4 Channels
  • 2Ω RMS Power Output: 100W x 4 Channels
  • 4Ω Bridged: 200W RMS x 2 Channels
  • Topology: Full Range Class D
  • THD: <0.2%
  • Frequency Response: 10Hz - 32kHz
  • Crossover: Fixed HPF/LPF @ 80Hz, 12dB/Oct
  • Max Sensitivity: 200mV
  • Maximum Input Signal: 5V
  • Height: 6.52" (165.5mm)
  • Width: 5.51" (140mm)
  • Depth: 1.86" (47.2mm)
  • Warranty Period: 24 months from date of purchase

Returns & Warranty

30-Day Money-Back Guarantee

At MTX Audio, we are serious about sound®. Therefore, if you are not "blown away" with your purchase, for any reason, you can return any items purchased directly from that are complete and like new within 30 days. Products purchased from authorized MTX retailers must be returned through that same retailer. Products purchased through non-authorized MTX retailers may not be returned.

About Returns
Warranty Information

MTX products purchased in the USA from an authorized MTX dealer are guaranteed against defects in material and workmanship for the period of time specified below, the warranty period begins the day the product is purchased by the end user. This warranty is limited to the original retail purchaser of product and extends only to products purchased from authorized MTX resellers. Product found to be defective during that period will be repaired or replaced by MTX at no charge.

About Our Warranty



MTX StreetWires PS1K-10 10 AWG Motorsports Amplifier Kit

MUDBTRC Bluetooth Remote Control/Receiver Size Comparison

Universal Bluetooth Receiver and Remote Control