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      06-14-2021, 06:22 AM   #3
Ali-E90
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Drives: 2007 E90 323i (Cdn)
Join Date: May 2013
Location: Toronto, Canada

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2008 BMW M3  [8.00]
2007 BMW 323i  [8.50]
Base 6-speaker has no amp. The poor speakers are fed directly form the HU.

Since you’re interested in also changing the HU for something more modern, your “easiest” option may be to do that and have the new unit run the speakers directly, or also get an aftermarket amp to feed the speakers.

If you want to improve the sound, you’re likely going to need an amp AND change the poor factory speakers anyway.
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