Polk MM522Ultra marine certified (IP56 rated) Dirt & water resistant & tested for salt fog, UV & humidity Used in Automobile, Boats & ATVs 5. 25" Dynamic Balance polypropylene woofers 1" Terylene Dome tweeters

2-way passive crossovers included

USB Mirroring for iPhone / Android

45Hz – 40kHz

Uses the power wire side of the 70-1784 (front speaker output only on some models)

Balanced Dome Tweeter

Frequency Response: 10Hz-200Hz

Model Code

Cutout Diameter

06 VOICE COIL Single • Polypropylene cone & rubber surround

- Height: 6-1/4 in (158mm)

005 % Channel Separation (1 kHz) 92 dB Wow and Flutter Below threshold of measurability Dimensions (W x H x D) 17 1/8" x 5 3/16" x 17 1/16" Weight 15

F-250/350 1997