--- product_id: 29448952 title: "MUD100.4 Mud Series 400 Watt RMS 4 Channel Class D Compact Weatherproof Outdoor Powersports ATV UTV Motorcycle Sound System Stereo Amplifier Kit" brand: "mtx" price: "₩1013741" currency: KRW in_stock: true reviews_count: 8 category: "Mtx" url: https://www.desertcart.kr/products/29448952-mud100-4-mud-series-400-watt-rms-4-channel-class store_origin: KR region: South Korea --- # 400W RMS Power Output Compact 6.52" x 5.51" x 1.86" Size IP66 Weather Resistant MUD100.4 Mud Series 400 Watt RMS 4 Channel Class D Compact Weatherproof Outdoor Powersports ATV UTV Motorcycle Sound System Stereo Amplifier Kit **Brand:** mtx **Price:** ₩1013741 **Availability:** ✅ In Stock ## Summary > ⚡ Rugged Power Meets Trail-Ready Sound – Don’t Ride Without It! ## Quick Answers - **What is this?** MUD100.4 Mud Series 400 Watt RMS 4 Channel Class D Compact Weatherproof Outdoor Powersports ATV UTV Motorcycle Sound System Stereo Amplifier Kit by mtx - **How much does it cost?** ₩1013741 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/29448952-mud100-4-mud-series-400-watt-rms-4-channel-class) ## Best For - mtx enthusiasts ## Why This Product - Trusted mtx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** The smallest MTX amp ever made fits seamlessly into any powersports rig without sacrificing sound quality or power. - • **Precision Sound Control:** Fixed high and low pass filters at 80Hz let you tailor your audio setup for full-range speakers or booming subwoofers. - • **Built to Brave the Elements:** IP66-rated weatherproof design with conformal coated circuitry ensures relentless performance rain or shine. - • **Plug-and-Play Pigtail Wiring:** Simplify installation with a moisture-resistant pigtail harness that keeps connections safe and sound. - • **Unleash 400 Watts of Pure Power:** Drive your ATV or UTV speakers with crystal-clear, full-range Class D amplification that commands attention on every trail. ## Overview The MTX MUD100.4 is a compact, 4-channel Class D amplifier delivering 400 watts RMS power (100W x 4 at 2 ohms) with a frequency response from 10Hz to 32kHz. Engineered for outdoor powersports use, it features IP66 weather resistance, a conformal coated circuit board, and a moisture-sealed pigtail wiring harness for reliable performance on ATVs, UTVs, motorcycles, and boats. Its fixed 80Hz high and low pass filters enable versatile speaker configurations, making it the ultimate rugged audio upgrade for adventurous professionals. ## Description Rugged, Compact & Powerful Powerful, yet compact, audio amplifier that can be installed on any UTV, boat, 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 of RMS power per channel. More than enough power to drive a single or dual full range speakers per channel. 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. FEATURES: ◾Compact Design Enables Installation Anywhere ◾Conformal Coated Printed Circuit Board that Resists Moisture ◾Fixed Crossovers, High and Low Pass Allow Use with Full Range Speakers or Subwoofers ◾High and Low Level Inputs ◾800W Peak Power ◾Weather Resistant in Accordance with IP66 Rating Review: POWERFUL - Amazing sound and power. Better buy the best speakers available, or they won’t last 3 seconds into anything. Smoked 3 sets of 200$ speakers until I installed the Audiolegion 6”- they scream. Review: Great amp - This amp is very strong to say the least. I have it bridged pushing two kicker km8's and it easily maxes out the speakers. Only down side is it seems to go very heavy on the bass when in full range and you cant really adjust it down so a phone equalizer app will be needed. Overall an awsome amp. EDIT.... ok so after having this a few months i went to open my wifes speaker box and somehow water got inside the box. This amp got VERY WET insode and out but all i did was let it dry out in the sun for 2 day and bam it still works like a champ haha. I love this amp for real. You get what you pay for haha. ## Features - 4 Channel Full Range Class D Amplifier - 400 Watts Power RMS (100 x 4 @ 2 Ohms) 50 x 4 @ 4 Ohms - Fixed HPF/LPF @ 80Hz, 12dB/Oct - Freq Resp 10Hz - 32kHz - 6.52" x 5.51" x 1.86" ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DAYDY64 | | Best Sellers Rank | #414 in Powersports Speaker Systems | | Brand | MTX | | Customer Reviews | 3.8 3.8 out of 5 stars (43) | | Date First Available | March 22, 2016 | | Is Discontinued By Manufacturer | No | | Item Weight | 3.14 pounds | | Item model number | MUD100.4 | | Manufacturer | MTX | | Material | Plastic | | Maximum Supply Voltage | 16 Volts | | Minimum Supply Voltage | 12 Volts | | Mounting Type | Surface Mount | | Number of Channels | 4 | | Output Power | 400 Watts | | Package Type Name | Box | | Specification Met | RoHS, WEEE | | UPC | 715442241934 021100929985 | | Voltage | 400 Volts | | Warranty | 2-Year Manufacturer Warranty | | Wireless Remote | No | ## Product Details - **Manufacturer:** MTX - **Maximum Supply Voltage:** 16 Volts - **Minimum Supply Voltage:** 12 Volts - **Mounting Type:** Surface Mount - **Voltage:** 400 Volts ## Images ![MUD100.4 Mud Series 400 Watt RMS 4 Channel Class D Compact Weatherproof Outdoor Powersports ATV UTV Motorcycle Sound System Stereo Amplifier Kit - Image 1](https://m.media-amazon.com/images/I/61LvSgjRS+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ POWERFUL *by G***R on November 15, 2021* Amazing sound and power. Better buy the best speakers available, or they won’t last 3 seconds into anything. Smoked 3 sets of 200$ speakers until I installed the Audiolegion 6”- they scream. ### ⭐⭐⭐⭐⭐ Great amp *by A***E on March 3, 2020* This amp is very strong to say the least. I have it bridged pushing two kicker km8's and it easily maxes out the speakers. Only down side is it seems to go very heavy on the bass when in full range and you cant really adjust it down so a phone equalizer app will be needed. Overall an awsome amp. EDIT.... ok so after having this a few months i went to open my wifes speaker box and somehow water got inside the box. This amp got VERY WET insode and out but all i did was let it dry out in the sun for 2 day and bam it still works like a champ haha. I love this amp for real. You get what you pay for haha. ### ⭐⭐⭐⭐ Rear channel blew out. *by C***E on October 16, 2022* Sound was great. It then took time to figure out why my rear channels weren't working, I took the seals off the amp volume controls and the rear light was off when it should be on like the front amp switch. I paid to have the sound system installed in my boat. ## Frequently Bought Together - MTX MUD100.4 Mud Series 400 Watt RMS 4 Channel Class D Compact Weatherproof Outdoor Powersports ATV UTV Motorcycle Sound System Stereo Amplifier Kit - MTX AWBTSW Bluetooth Rocker Switch Receiver and Control - MTX MUD65PL Mud Series 6.5 Inch 50 Watt RMS Handlebar Cage Mount Weatherproof Coaxial Motorcycle ATV UTV Speaker Pair with RGB LED Lights --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/29448952-mud100-4-mud-series-400-watt-rms-4-channel-class](https://www.desertcart.kr/products/29448952-mud100-4-mud-series-400-watt-rms-4-channel-class) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-14*