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      08-14-2012, 10:18 AM   #3
rallybull's Avatar
Drives: F30 335i w/PPK
Join Date: Jul 2012
Location: USA

Posts: 803
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At the minimum upgrade sub. This might mean removing existing subs. Also would like to prevent very low bass freq (<100Hz) reaching other speakers. If quality would not have improved substantially then also upgrade the other speakers.
rallybull is offline   United_States
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