BOSS Audio Systems MR50W 5.25" Marine Boat Speakers

These are BOSS Audio Systems MR50W 5.25-inch marine coaxial boat speakers—weatherproof, full-range, 150 watts per pair, sold as a matched pair for on-boat audio.

Designed for salt-air and freshwater environments, the MR50W delivers clear midrange and crisp highs from a compact 5.25" woofer with a 1" mylar dome tweeter. The speakers combine durable materials and UV-resistant finishes with a shallow mounting depth, making them a practical upgrade for boats, pontoons, and small watercraft where space and exposure are both concerns.

How do these speakers handle outdoor and marine conditions?

The MR50W uses weatherproof construction techniques to resist moisture, salt spray, and sun exposure without sacrificing sound quality. Durable polypropylene cones, treated cloth surrounds, and a plastic basket reduce corrosion risk while the tweeter and voice coil are protected for longer life in wet environments.

• Weatherproof design for marine environments
• Polypropylene cone and treated cloth surround resist moisture
• Plastic basket and corrosion-resistant components
• UV-stable finishes to limit sun damage

What audio performance can I expect from a 5.25" full-range speaker?

These coaxial speakers reproduce a broad frequency range (80 Hz–20 kHz) so you get defined vocals and clear treble from a compact driver. With 89 dB sensitivity at 1 W/1 m and a nominal 4-ohm impedance, they are easy to drive with most marine stereos and small amplifiers.

• Frequency response: 80 Hz–20 kHz for full-range sound
• System sensitivity: 89 dB (1 W/1 m) for efficient output
• Impedance: 4 ohms compatible with common marine head units
• 1" mylar dome tweeter for crisp high frequencies

Will these fit my boat and how easy is installation?

The MR50W has a compact footprint and shallow mounting depth for tight panel spaces. Dimensions and cutout size are provided so you can confirm fit before purchase; professional installation is recommended to ensure secure mounting and proper wiring for safe marine use.

• Overall dimensions: 6.25 x 6.25 x 3.25 inches
• Mounting depth: 2.2 inches—suitable for shallow locations
• Mounting hole: 4.94 inches for template cutting
• Sold in matched pairs for left/right stereo balance

What warranty and support does BOSS Audio Systems provide?

BOSS Audio Systems backs the MR50W with a 3-year platinum online dealer warranty when purchased through Amazon.com. This coverage helps protect against defects, and the manufacturer recommends professional installation to maintain warranty validity and safe operation on marine craft.

• 3-year platinum online dealer warranty via Amazon purchases
• Manufacturer support for defects and coverage questions
• Professional installation recommended to ensure proper function
• Sold as a pair so you receive matched drivers for consistent sound

Who is this for: The BOSS MR50W is aimed at boat owners and marine enthusiasts who need reliable, space-conscious speakers that stand up to moisture and sun exposure. Choose these speakers if you want a compact, easy-to-drive coaxial solution for pontoons, small boats, kayaks with stereo systems, or as an economical upgrade to factory marine audio. If you require deeper bass or higher power handling, consider larger or amplified speaker options.