Boss MCK508WB6 CD/USB/SD, MP3, WMA, FM/AM Player/Bluetooth w/6.5" Speakers
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Your Boat. Your Music. Your Way.
The Boss MCK508WB6 is a complete marine audio kit that pairs the Boss MR508UAB marine receiver with a set of weatherproof 6.5" full-range speakers — everything you need to bring real sound to the water, right out of the box. Stream wirelessly via Bluetooth, spin a CD, plug in a USB drive, or connect your phone through the aux input. However you listen, this kit has you covered.
Built for the marine environment, the MR6W speakers feature a poly carbon cone and rubber surround rated to handle salt air, UV exposure, and the occasional splash — while the receiver’s preset EQ and wireless remote keep the controls simple and accessible from anywhere on deck.
What’s Included
- Boss MR508UAB Marine Receiver
- 1 Pair of Boss MR6W 6.5" Weatherproof Full-Range Marine Speakers
Key Features
- Bluetooth Audio Streaming & Hands-Free Calling — Wirelessly stream from Spotify, Pandora, and other apps; take calls without touching your phone
- CD/USB/SD/Aux Playback — Plays CD, MP3, WMA formats from USB drives, SD cards, and auxiliary inputs
- FM/AM Tuner — Built-in radio for local stations and marine weather channels
- 50W x 4 Max Power (Receiver) — Enough headroom to drive additional speakers or an amplifier
- Preset Built-In EQ — Quickly dial in sound for open-air marine listening environments
- Wireless Remote Included — Control playback from anywhere on the boat
- RCA Outputs — One pair of RCA outputs for connecting an external amplifier
- 6.5" Weatherproof Speakers — Poly carbon cone and rubber surround rated for marine exposure; 180W MAX / 90W RMS per pair
- Smartphone Compatible — Works with audio output from smartphones and MP3 players via Bluetooth or aux
Specifications
- Brand: Boss Audio Systems
- Model: MCK508WB6
- Receiver Max Power: 50W x 4
- Speaker Size: 6.5" Full Range
- Speaker Power: 180W MAX / 90W RMS (per pair)
- Inputs: USB, SD, Aux, Bluetooth
- Outputs: 1 x RCA Pair
- Formats: CD, MP3, WMA, FM/AM
- Weight: 3.17 kg (7.0 lb)
- Part Number: MCK508WB6
Whether you’re cruising the coast or anchored in a quiet cove, the Boss MCK508WB6 delivers the soundtrack your time on the water deserves.
⚓ Parts Desk Insight
- This is a kit — receiver and speakers are bundled: Customers sometimes ask if the speakers are sold separately. The MCK508WB6 includes both the MR508UAB receiver and the MR6W 6.5" speakers as a matched set.
- 50W x 4 max power leaves room to expand: The receiver’s RCA output allows customers to add an external amplifier later if they want more volume or want to drive additional speaker zones.
- Marine-rated ≠ fully submersible: The MR6W speakers are weatherproof and designed for marine exposure, but they are not waterproof for direct submersion. Mounting location matters — avoid direct spray zones where possible.
- Bluetooth pairing is straightforward: The receiver supports standard Bluetooth pairing. Customers should confirm their phone’s Bluetooth profile compatibility if they plan to use hands-free calling alongside audio streaming.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.