Skip to product information
1 of 11

Rockville

MS40B Black 4" Marine Speakers + MUD50.2 Amplifier Bundle

MS40B Black 4" Marine Speakers + MUD50.2 Amplifier Bundle

4" IP56 Marine Speakers, 1 Pair, Compact 2-Channel Amp, Weather-Resistant

Free Shipping

Regular price $169.95
Sale price $169.95 Regular price $0.00
Shipping calculated at checkout.
Features
    • Compact IP56 4" speakers with UV-safe grills
    • MUD50.2 Class D 2-channel amplifier
    • Fixed 80 Hz HPF for clean mids/highs
    • Moisture-resistant design and pigtail wiring
    • Mounting screws and clips included
30-Day Money-Back Guarantee
Fast & Free Shipping
Buy Now, Pay Later
1-Year Warranty
    • Pair Rockville MS40B 4" marine speakers (Black)
    • MTX MUD50.2 2-channel amplifier
    • Speaker mounting screws and speed clips
    • Amplifier wiring pigtail
    • Basic installation hardware

SKU: SKU: MS40B+MUD50.2

View full details

Product Description

A minimalist, weather‑ready upgrade for powersports and marine sound. The IP56 4" speakers deliver crisp highs and balanced mids, while the compact Class D amp fits tight spaces and runs cool. Fixed 80 Hz HPF trims low‑end resonance for cleaner output on bars, dashes, or cabins. Ideal for clean, reliable audio on small boats, ATVs, UTVs, and carts.

This Bundle Includes

MS40B

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.
Learn More
MUD50.2

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.

Features

    • Space-Saving Power

      Micro chassis Class D amplifier supplies stable output with low heat in cramped installs.

    • Outdoor Durability

      IP56 drivers and conformal‑coated electronics resist spray, dust, and UV exposure.

    • Tuned for Clarity

      Fixed 80 Hz high‑pass filtering focuses power on mids and highs for articulate sound.

    • Simple Integration

      High/low‑level inputs and pigtail harness ease connection to factory or add‑on sources.

    • Clean Aesthetics

      Low‑profile speaker design blends with cabins and pods for a refined, factory‑like look.

MS40B Black 4" Marine Speakers + MUD50.2 Amplifier Bundle

Technical Specifications

  • Product Type 4" marine speaker and compact amplifier bundle
  • Speaker Power (Peak/Pair) 200 W
  • Speaker Power (RMS/Pair) 50 W
  • Impedance 4 ohm
  • Frequency Response 122 Hz–20 kHz
  • Sensitivity 85 dB @1W/1m
  • Waterproof Rating IP56

Hear From Our Customers

California Proposition 65 Warning: Cancer and Reproductive harm — www.P65Warnings.ca.gov