Boss Audio MR6B 6.5" 2-Way Marine Speakers — Black, 180W, 1 Pair

6.5" 2-Way Marine Speakers — Black, Entry-Level, Sold as a Pair

The Boss Audio MR6B is a straightforward 6.5" 2-way marine speaker pair for standard helm and cockpit installations. With a poly injection cone, aluminum voice coil, and 89dB sensitivity, it delivers reliable audio performance at a lower price point than the higher-spec models in the lineup. The shallow 2-1/8" mounting depth makes it a practical choice for locations with limited clearance behind the mounting surface.

At 180W total power handling and 89dB sensitivity, it pairs well with standard marine head units without requiring an external amplifier. Black finish suits dark-hardware helm stations and modern boat aesthetics.

Specifications

• Size: 6.5" (6-1/2")
• Configuration: 2-way
• Power handling: 180W total
• Frequency response: 80 Hz – 20 kHz
• Sensitivity: 89 dB (1W/1m)
• Cone material: Poly injection
• Voice coil: Aluminum
• Mounting depth: 2-1/8" (2.125")
• Finish: Black
• Quantity: 1 pair (2 speakers)
• SKU: 153-MR6B

Best Use Case

The MR6B is the right choice when a reliable, no-frills 6.5" marine speaker is needed at a lower price point — secondary cabin speakers, replacement speakers for older vessels, or budget-conscious builds where audio quality is a secondary priority. The shallow 2-1/8" mounting depth is a practical advantage for tight installations where deeper speakers won’t fit. For higher output, better low-frequency extension, or a cloth surround for improved durability, the MR60B or MR62B are worth the step up.

Also Consider

• Boss Audio MR62B 6.5" Weatherproof Marine Speakers — Black (Pair) — cloth surround, confirmed weatherproof, 100W RMS
• Boss Audio MR60B 6.5" Marine Speakers — Black (Pair) — 200W peak, 40oz magnet, 80Hz low-end
• Boss Audio MRGB65 6.5" Marine Speakers with RGB Lighting — White (Pair) — RGB accent lighting, white finish
• Boss Audio MR652C 6.5" Coaxial Marine Speaker — 350W (Individual) — high-output coaxial, sold individually
• Browse all Navigation & Electronics

Parts Desk Insights

The MR6B is the entry-level model in the Boss Audio black 6.5" marine speaker lineup — it sits below the MR60B and MR62B in output, sensitivity, and magnet size. The 89dB sensitivity vs. 90dB on the MR60B/MR62B is a minor difference in practice, but the 180W vs. 200W power handling and the absence of a confirmed weatherproof rating are worth noting. The shallow 2-1/8" mounting depth is the primary reason to choose this model over the others — if a customer has a depth-constrained installation, this is the right fit. The frequency response in the original product data listed "80 Hz to 20 Hz" — this was a data entry error; the correct upper limit is 20 kHz, which has been corrected here. Confirm impedance and weatherproof rating with supplier if a customer asks.