02-15-2016, 05:17 AM | #1 |
Brigadier General
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at a loss
There is a lot of posts on upgrading stock audio on F30s but wondering about HK
Trying to find a simple solution to just give at least a slight bump in sub levels. Has anyone got any reliable info / sources on this. Read few posts about bav sound and Earthquake SWS 8`s but whats the general preferences / type anyone has gone for thanks
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F30 335i M Sport - now departed
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