POLK AUDIO OPEN BOX MM5251 Mobile Monitor Series 5.25" Component Speaker System

Polk Audio continues its tradition of making brilliant-sounding speakers in stylishly designed packages — their Mobile Monitor (MM) Series speakers look great and sound even better. Each speaker utilizes an extra-strong, extra-small neodymium magnet that saves space and weight, allowing these speakers to fit into more places in more vehicles while still delivering a full sound with lots of kick. Their lightweight carbon composite frames provide strong, flex-free support for the speakers' motor assemblies.

• component speaker system includes two 5-1/4" woofers, 2 tweeters, and two external crossovers
• woven honeycomb glass fiber composite woofer cone with butyl rubber surround
• 1" silk composite dome tweeter with swivel mount
• 2-way external crossover with 2-position tweeter level
• certified for marine use
• 2.7-ohm impedance for extra power (compatible with virtually all factory or aftermarket car stereos)
• power range: 15-90 watts RMS (200 watts peak power)
• frequency response: 50-25,000 Hz
• sensitivity: 92 dB @ 2.83 V
• top-mount depth: 2-3/8"

The Polk MM5251 component system features 5-1/4" woofers with honeycomb-textured woven glass fiber composite cones that respond very quickly for a clean, crisp, and powerful sound. Large voice coils — over an inch in diameter — give the speaker high power handling capability and extended reliability.

Separate 1" silk dome tweeters add a sweet high end that blends perfectly with the low notes, and swivel mounts let you aim the tweeters to produce a superior soundstage in your car. The external crossovers direct the signal flow so all your music stays in perfect harmonic balance, from the fat thump of an electric bass all the way up to the "ping" of the cymbals. A tweeter attenuation setting allows you to tweak the high-frequency level to your taste.

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