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      09-24-2012, 06:45 AM   #4
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Drives: e90 328i
Join Date: May 2011
Location: KY

iTrader: (4)

They are a marked improvement over the stock speakers. Sound even better amped with an after market amp, but you don't want to send them more than ~50 watts and be careful because they are low ohms, so it is easy to send them power. With stock amps no issues. With aftermarket amp be sure to cross the mids above 150 hz and use the passive crossovers in the doors. BSW sells crossovers in their component set, which is the same drivers as they provide in the stage 1 kit, but with crossovers.