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      11-17-2019, 07:37 PM   #1
Lozza47
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Drives: 2013 F30 335i / 2011 E92 M3
Join Date: Sep 2019
Location: Melbourne

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Hi Fi Under seat sub upgrade

Hi all,

Does any one have any recommendations for the best direct fit under seat sub upgrade over Hi Fi sound system in m235i?

A lot of threads are based on improvements over HK system.

I won't be changing the amp either.

Alternatively, if you could only do one - would changing out the speakers or changing out the amp for something like bimmer tech's harness the best audio performance improvement?

I find the low 20-60hz area on the m235i to be no existent.
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