Expand your system with this 8-speaker bundle of Polk’s MM572 Ultra-Marine coaxials. Engineered for extreme conditions, these speakers combine rugged IP56 certification with titanium-coated cones, Santoprene surrounds, and pivoting 1″ Terylene tweeters for powerful, accurate sound in any environment.
Key Features
- Sold as 4 pairs (8 speakers total)
- Power Handling (RMS): 100 W Each / 800 W Total
- Power Handling (Peak): 300 W Each / 2,400 W Total
- Impedance: 4 Ω nominal
- Sensitivity: 93 dB @ 1 W / 1 m
- Frequency Response: 35 Hz – 40,000 Hz
- Mounting Depth: ~2.56″ (top-mount)
- Cutout Dimensions: ~4.92″ × 7.15″
- Ultra-Marine Certified (IP56): waterproof surrounds, corrosion-resistant baskets, drainage weep holes, epoxy-coated crossovers
- Titanium-coated composite woofers with Santoprene surrounds
- Pivoting 1″ Terylene dome tweeters