help me make sonos better

you all know sonos does not serve the purity of detail/refinement market but it does do a fabulous job satisfying wife, kids, and even serious listener's who are working on "honey do" lists...

but there must be a way to make it better. read about the cullen mods and external dacs and am ready to dive into the water but for the life of me can't find the ultimate pool. can/will someone lead me to the right place? what and how much $ would be nice to know as well. many thanks....
Folks, what is the strategy when using a zp100? I don't believe these have any digital outs- would a dac go into the analog outputs, and if so, how would it sound?

I have a tube integrated Jolida and want to make my Sonos source sound at least as good as the cdp.
I don't think there's a ZP100. There's a ZP90 and ZP120, both have digital outputs.

There's a BR100, which is a "zone bridge" - basically a wireless distributor. The BR100 doesn't play any music, it just sends it to the ZP's.

In any system, DACs can't connect to analog outs; only digital outs. There are some DACs that allow analog pass through, like the Benchmark DAC1 Pre, but that doesn't convert an analog signal, its basically a pre-amp with DAC.
Kbar, thanks for your response. I do have a zp100 (had Sonos since the time it came out). Looks like I will have to get a new one with digital outs...
Pjohri, I think I'm pretty much where you want to be when you say

[I have a tube integrated Jolida and want to make my Sonos source sound at least as good as the cdp.]

Cullen mod to the Sonos, Monarchy DIP, cheap Dacmagic DAC, into an integrated Jolida. That's ~$1100 of tweakery, but it sounds wonderful with lossless files.
Sorry Pjohri. I do remember the ZP100 now. I thought they all had digital outs since the first generation. Guess you learn new things every day!