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      05-02-2019, 02:28 AM   #1
Zimi
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Question about speakers for 428i (HI-FI Stereo)

Greetings,

Long time lurker, first time poster!

My car has the Hi-Fi stereo option (includes the tweeters but NOT the Harmon Kardon ones). I want to replace all the stock speakers with the infinities from my old vehicle. I know the driver and passenger coupe doors take 4 inch drivers but unsure of the two speakers in the rear passenger panels. Could you possibly let me know if the rear speakers are also 4 inch drivers?

Thank you in advance!

Last edited by Zimi; 05-02-2019 at 04:21 AM..
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      05-02-2019, 02:40 PM   #2
kingmonkey8
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Quote:
Originally Posted by Zimi View Post
Greetings,

Long time lurker, first time poster!

My car has the Hi-Fi stereo option (includes the tweeters but NOT the Harmon Kardon ones). I want to replace all the stock speakers with the infinities from my old vehicle. I know the driver and passenger coupe doors take 4 inch drivers but unsure of the two speakers in the rear passenger panels. Could you possibly let me know if the rear speakers are also 4 inch drivers?

Thank you in advance!
The rears should be the same.
Is your old vehicle a BMW?
The BMW drivers are shallow to fit between the door and window glass. Otherwise you may need an adapter.
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      05-02-2019, 07:56 PM   #3
jjhebigscreen
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Smile Sound upgrade

Look at Bavsound website. They specialize in what you are trying to accomplish. I replaced all 7 speakers on my 435ix with the hifi system and the difference in the quality of sound is night and day. I could not be happier!
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