Anyone upgraded a MS sound system in the LA area?

[Trackpad]

I have a newly purchased MS 75D, with the standard sound system and am interested in listening to anyone who has upgraded their sound system. It seems like there are two companies (Al and Ed, Reus) who specialize in such upgrades, possibly others.

I would love to actually hear someone's system and get their honest assessment of what's important to get quality sound, especially costs vs benefit.

I'm in Pasadena, thanks.

 

[DavidP100DL]

I'm in the market for the same and I have the Premium Sound System but it's just not good enough compared to what I am used to. My install is challenged because I have the Rear Facing Seats which use the same space usually occupied by the amplifier when put away.

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Good luck @Trackpad. I'm still a 3-4 weeks out from doing anything, but find myself in the same boat.