The used car I just bought came with Polk Audio MM6520 coax 6.5" speakers, vintage circa 1991. Can anyone fill me in on the specs for these things? My searches on the Polk Car Electronics page and in this forum have come up empty. I'm looking for sensitivity, impedance, RMS power range, and so on.
The head unit driving these things is a Clarion DB336MP, and when I turn up the volume mid-way, the speakers distort like crazy. Either the head unit is too weak and hits its clipping range before the volume gets high, or the speakers are bolluxed - they look like they should handle this lo-end head unit. I'm still going through the car, so not sure if there is a wiring problem, or a zorched crossover, or if the HU is connected to an amp (maybe miswired) - who knows.