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White 5-inch three-way marine speaker pair with powder-coated stainless steel grilles and titanium cones

Poly-Planar LLC.

Poly-Planar LLC. IDXCW32437 5" 200 W 3-way marine electronic

SKU CH-E4ZT-NCNWH MPN IDXCW32437

A pair of 5-inch waterproof 3-way marine speakers rated at 200 watts peak with UV-stable frames and anti-magnetic grilles

  • Product typeMarine Speaker
  • Product weight4
  • Waterproof build survives harsh marine environments
  • 200 W peak power delivers loud, clear sound
  • Anti-magnetic design protects navigation instruments
  • UV-resistant frame endures 600 hrs salt-spray test
  • Sold as a pair for balanced stereo coverage

Marine-grade 5" 3-way speaker pair

The Poly-Planar IDXCW32437 is a 5-inch three-way coaxial marine speaker sold as a matched pair. Each unit handles 200 watts peak and 100 watts continuous power at 4 ohms. A titanium-plated cone, mylar tweeter and midrange driver combine with an anti-magnetic structure that protects navigation instruments. The powder-coated stainless steel grille and UV-resistant frame meet ASTM salt-spray and UV standards for 600 hours.

Upgrade for salt-water and UV exposure

Boat owners replacing factory speakers or adding audio to open cockpits benefit from the waterproof build and corrosion-resistant materials. The anti-magnetic design allows installation near compasses and electronics. Buyers needing a single speaker, a different impedance, or a shallow-mount unit under 62 mm depth should consider other options.

Verify cut-out and mounting depth

Confirm your helm or panel can accommodate a 115 mm cut-out diameter and at least 62 mm of clearance behind the mounting surface. The outer grille measures 153 mm, so allow space for the flange. Ensure your amplifier or head unit can drive a 4-ohm load at the rated continuous power.

How it compares

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

Price $45.99
Cheaper than about 60% of the 312 comparable items (median $69.49).

Specifications

Product
Brand namePOLYPLANAR
Model nameIDXCW32437
Product typeMarine Speaker

Questions about this item

What amplifier power rating matches the 200 W peak and 100 W continuous rating of these speakers?

Choose an amplifier that delivers up to 100 watts RMS per channel at 4 ohms so the 100 W continuous rating is met without exceeding the 200 W peak limit.

Will the anti-magnetic design prevent interference with a fluxgate compass mounted nearby?

Yes, the anti-magnetic construction is intended to avoid disturbing navigation instruments such as fluxgate compasses when the speakers are installed close to them.

How can I verify the UV and salt-spray resistance after the speakers are mounted?

The grilles and frames are tested to ASTM standards for 600 hours of UV and salt-spray exposure; after installation, inspect for no chalking, cracking or corrosion on the white plastic and powder-coated stainless steel.

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