I put 4 of these in my Mazda5 and hooked them to a Memphis 300x4 Amp. They can put out a lot of sound (nice headroom) but they are weak on bass and midrange.(I have a separate Sub carrying the Lows from 80Hz on down) Scattered over the next 9 months each speaker blew the bass coil. Their tiny magnet gives you a great fit into small spaces but they just can't perform over the long haul. Now running JL-C5 series and they kick out the sound effortlessly compared to the Polk Audio MM571.
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