Sonos Products

W4S is owned by Cullen, we could call it a division of Cullen. As for the ZP90 jitter issue the ESS chip in DAC 1 and 2 have extremely good jitter reduction. I hear very little difference with my Cullen modded ZP vs an un modded unit. Beyond that the sound quality of a ZP90 and a W4S Dac is great, add to that the functionality of Sonos and I think you'll be very happy.

Bobf1717, I have the Dac2 and the Sonos ZP80. I also have a Mac Mini that I use as a server via USB to the W4S. Sonically, the Asynchronous USB of the Mini is superior to the Sonos, but the Sonos user interface is much, much better. Cullen offers an I2S via HDMI mod to the Sonos, which they haven't publicized for some reason. it's less expensive than the clock/power supply mod, and should equal or beat the USB out. Give Rick or EJ a call for more info. I'm going for it as soon as I can get around to shipping the zp to them.

Has anyone had the HDMI/I2S mod done on their Sonos yet? I have been thinking about that along with the DAC2, and was wondering if anyone had any thoughts on it? Thanks

I'n curious too

Looking for some advice. I currently have my ZP-90 connected directly to my amp (Rotel 1582). I dont have a pre-amp or DAC. If you were me and could only afford one, would you get the ZP-90 Cullen mod or get a DAC? Also does using a DAC then force you to use a pre-amp?