MS40B Black 4" Marine Speakers + MUD50.2 Amp + MUDBTRC Bundle
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Rockville
MS40B Black 4" Marine Speakers + MUD50.2 Amp + MUDBTRC Bundle
MS40B Black 4" Marine Speakers + MUD50.2 Amp + MUDBTRC Bundle
4" IP56 Speakers, 1 Pair, Compact 2-Channel Amp, IP66 Bluetooth Controller
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Regular price
$259.90
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$259.90
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Features
- IP56-rated 4" speakers for outdoor use
- Compact Class D 2-channel amplifier
- IP66 Bluetooth controller with big buttons
- High/low inputs for easy integration
- Install hardware and wiring pigtail
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What's Included in the box
- Pair Rockville MS40B 4" marine speakers (Black)
- MTX MUD50.2 2-channel amplifier
- MTX MUDBTRC Bluetooth controller
- Power/ground/accessory cables and adapters
- Speaker screws and speed clips
SKU: SKU: MS40B+MUD50.2+MUDBTRC
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Product Description
A streamlined, head‑unit‑free system for refined sound on boats, ATVs, and carts. IP56 speakers deliver crisp detail, the compact Class D amp provides clean power, and the IP66 Bluetooth controller gives quick, glove‑friendly control. A tidy install with rugged components designed for real‑world conditions.
This Bundle Includes

MS40B
Rockville MS40 4" marine speakers deliver 200W peak power and waterproof durability in a sleek design. With anti-UV ABS construction, rustproof hardware, and a polypropylene cone, these speakers provide clear, powerful sound and lasting performance—ideal for boats, outdoor spaces, or car audio systems.
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MUD50.2
The MTX MUD50.2 delivers dependable 2-channel power for outdoor audio systems exposed to harsh conditions. Compact sizing, full-range Class D performance, and weather-resistant construction make it ideal for UTVs, ATVs, motorcycles, and marine setups where space, durability, and sound clarity matter most.

MUDBTRC
The MUDBTRC Bluetooth Controller Receiver turns your device into your vehicle’s audio hub. Rugged, weather-resistant, and versatile, it works with most amplifiers and vehicles, offering multiple mounting options and easy-to-use, backlit controls for hands-on convenience on the go. Stream music seamlessly via Bluetooth or auxiliary output.
Features
Sleek Control
Rocker‑style Bluetooth controller mounts cleanly and pairs quickly for easy playback.
Compact Muscle
Micro 2‑channel amplifier fits tight spaces and supplies reliable full‑range power.
Outdoor-Ready Build
IP56 speakers and sealed electronics resist water, dust, and UV exposure.
Easy Integration
High/low‑level inputs and included cabling simplify installs on powersports and marine rigs.
Clear, Balanced Sound
Poly cones and PEI tweeters provide articulate highs and smooth mids on the move.

Technical Specifications
- Product Type 4" marine speaker, amplifier, and Bluetooth controller bundle
- Speaker Power (Peak/Pair) 200 W
- Speaker Power (RMS/Pair) 50 W
- Waterproof Rating (Speakers/BT) IP56 / IP66
- Amplifier Power 50 W x2 @2Ω, 25 W x2 @4Ω
- Bluetooth Range approx. 32 ft
- Frequency Response (Amp) 11 Hz–40 kHz
- Inputs High and low level
- Weight Speaker ship wt 1.76 lb (pair)
- Dimensions Amp 3.64 x 2.85 x 1.73 in; Cutout 3.66 in