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      02-22-2012, 09:14 PM   #1
***Major MammelToe
Wendall's Avatar

Drives: E92 M3 SG coupe
Join Date: Feb 2012
Location: Orange County, CA

iTrader: (3)

Hifi Stereo Amp Upgrade Only

Hi Guys,

I have the Hifi 10 speaker setup in my car. I actually think the sound quality is pretty good for a non-premium setup. When I bought the M3 i promised my wife i would not treat it like my Cayman and cut through metal and fit 9s in the doors rip out the all the Most Fiber wire...etc.

What I want to know is, Has anyone just upgraded the amplifier in the Hifi setup? I think i can deal with the stock speakers. I just want a little more clarity during louder volumes and a little more punch.

I was thinking along the lines of a JL XD600/6. If i set the gains conservatively and run a passive subsonic around 30hz, will the stock Hifi speakers handle around 60w rms each and the subs at 90w rms? And does it sound better?
E92 M3 SG DCT - AA Filter, Verstraβe Paddles, ECS SS, MH race stud, Stoptech BBK, MR Exhaust,RE Pulley, BPM Tune,Euro bumper and GTS lip, Euro MDM & DCT, KW CS, Recaro PP, TMS Soild Diff Mounts, MRF solid subframe mounts, GTS aero, RPM track built motor.