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      04-29-2016, 04:30 PM   #7
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Drives: 2000 M5, 2018 M550i, 2022 M4
Join Date: Jun 2015
Location: brooklyn, ny

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Quote:
Originally Posted by sandwi54 View Post
Will these work with the HiFi system? I have HiFi system but upgraded to Bimmertech Amp and Bavsound Stage 1 speakers. Wondering if these are plug-n-play and can replace the HiFi stock woofers.
These should work with your HIFI sound system and will definitely sound better than HIFI subwoofers. Reason I am so confident is because my friend just got a 428i gran coupe with HIFI system. The bass was a lot worse than my M4. We both upgraded to the bavsound Underseat subwoofers, and installed same time. The speakers were identical and both were plug and play. So i do not see a reason why the Harmon Kardon subwoofers would not plug and play in to the HIFI sound system.

I actually figured that the people that would be most interested in these subwoofers, would be the ones with a HIFI sound system.
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