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Speaker upgrade s677 DSP Pro System

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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spitfun
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Speaker upgrade s677 DSP Pro System

Post by spitfun » Tue Jan 24, 2023 2:36 pm

I am looking at upgrading my speakers ( just the mids and tweeters for now). From what I see I have the s677 hifi professional dsp system,are they just 4 ohm speakers which means I can go with any speakers that fit or am I missing something? I don't want to remove door panels to look as I hear the clips break so I would rather have new speakers on hand and remove it only once.
2012 Z4 Sdrive35i M Sport manual

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B21
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Speaker upgrade s677 DSP Pro System

Post by B21 » Tue Jan 24, 2023 3:10 pm

They are a BMW specific moulding pattern…cheapo solution is to get some adapter rings…

For a 677 system ideally you should be looking at Audiotec Fischer, Eton or Audison plug n play versions…

In most cases you will need to cut a hole in the plastic recess that sits in the inner door skin to get the bigger magnets to clear..

See this for more info…

viewtopic.php?p=1677642#p1677642
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:

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