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Old 06-08-2009, 01:16 PM   #2
Registered User
Join Date: Oct 2008
Location: SW FL
Posts: 19
My Ride: 330ci ZHP
4 door. I used the same amps for almost the same setup that you have. Everything installed nice and went well with the exception of one thing.

When I bridged the MRP-300 it introduced a pretty strong hiss. I have the gains turned way down to make it tolerable. I have heard guys over on the DIY Mobile audio page mentioning the same thing with the PDX series. Seams to be something with the way alpine distributes the power on the speaker connections., and or why you need all for channels inputed, when you are only driving two out.

Have you noticed anything similar?

And how do they run in your spare well?? Any issues with overheating?
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