Quote:
Originally Posted by m2michael23
For f30s don't have HK, what do we do that can make the sound better? subwoofers? amplifiers or speakers?
i have 335i m-sport.
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Replace the OEM amp with either a XD600/6 (no center channel) or a JBL MS-8 DSP/8-channel amp directly.
Then decide if you want to replace speakers as well.