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White 5.25 inch round marine speaker with stainless grille and centre tweeter

Poly-Planar LLC.

Poly-Planar LLC. MA6500 5.25" 320W white marine speaker

SKU CH-DEJ4-446DG MPN MA6500

A 5.25-inch white marine speaker delivering 320 watts peak power with waterproof construction and UV-resistant frame

  • Product typeMarine Speaker
  • Product weight7.2
  • 320 W peak power handles loud transients
  • 80 W continuous power delivers steady output
  • UV-resistant frame and waterproof build survive marine exposure
  • 4 Ω impedance matches common marine amplifiers
  • 65 mm mounting depth fits tight console spaces

Product identity

The Poly-Planar MA6500 is a 5.25-inch marine speaker built for boats and other wet environments. It uses a three-way design with a mylar tweeter and midrange mounted across the main cone. The colourfast plastic frame resists UV damage and the waterproof construction handles direct exposure. Stainless steel mounting hardware is included for installation.

Deciding specification

Peak power handling reaches 320 watts while continuous power is rated at 80 watts at 4 ohms impedance. The cutout diameter measures 121 millimetres and the mounting depth is 65 millimetres, so the available cavity space determines fit. The outside grill diameter is 160 millimetres and each unit weighs 3.00 pounds.

Fit and alternatives

This speaker suits owners replacing a single 5.25-inch round unit or adding one location where the cutout and depth match. Buyers needing a pair for stereo sound must order two individual units. Installations with a smaller cutout or shallower mounting depth cannot accommodate this model. Systems requiring a different impedance or power rating should consider other options.

How it compares

Measured against everything we stock in Boat Audio & Electronics, at today’s prices. Recalculated every night.

Price $82.99
Typical for this category: the median of 312 items is $69.49.

Specifications

Product
Brand namePOLYPLANAR
Model nameIDXCW11228
Product typeMarine Speaker
Size & build
Shipping weight4.08 kg
Package size533 × 381 × 229 mm

Questions about this item

How loud will the 320-watt peak rating actually play on my boat?

The 320-watt peak figure is a short-term maximum; the continuous power handling is 80 watts, which determines realistic listening volume.

What does the 4-ohm impedance mean for my marine amplifier?

A 4-ohm load draws more current than 8-ohm speakers, so your amplifier must be stable at 4 ohms to deliver full power without overheating.

Will the 65-millimetre mounting depth fit behind my helm panel?

The speaker needs 65 millimetres of clearance behind the cutout; measure your panel depth to confirm it fits before cutting.

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