Analog vs Digital DSP (Grom Install)
 

My 2005 4.8is has MK4 Nav w/ CD Changer and DSP.

I'm trying to see which GROM I want to install and removed the CD changer to check some stuff out but I came to realize that my DSP (although it's working via the nav menu and can change the EQ) did not have the coaxial cable's connected nor is it present?

I can see my amp has the coaxial input but nothing is connected to it and the CD changer has not coaxial at all.:confused:

The MK4 DVD has coaxial as well but nothing is connected to it either.

According to Grom's PDF, MY2002+ should have digital DSP with the coaxial connected? Am I not understanding this correctly?

https://gromaudio.com/docs/bmw-dsp_application.pdf

Earlier X5 had true DSP, later X5 has analog DSP. I think Grom made a mistake and should have stated up to MY 2002 has coaxial DSP.
You should have a 6 pin connector in the back and that is where you plug the Grom too.

Yes I ended up physically checking.

Although it has the coaxial on the amp it's not connected.

Is digital DSP better than analog?

Why did BMW downgrade then?!


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If you like a true digital experience than Digital DSP is what you want.

BMW found out that it was cheaper to build the same option than to provide multiple options.

So can I just get the coaxial cables and upgrade?


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Don't know since my X has the DSP system with the coaxial cable from the amp to the CD changer.