People sometimes ask me for a great all in one system that works with Roon. Quite a few of my customs have come up with this solution so I decided to pass it on.
The KEF LS50 wireless speaker pair has a USB input and a 24/129 DAC built is as well as a 230W amp. Both speakers have their own amps and you connect them to each other with a Cat5 cable.
All you need to do is attach a microRendu to the USB input and you have a complete Roon Ready system.
The LS50 wireless costs twice as much as the standard LC50 but it includes DSP functionality that can be controlled via an iPhone app. You can attach a sub to the LC50 wireless and configure the DSP to send bass to it.
People have told me the LS50 wireless + R400b sub + microRendu combination sounds almost as good as the Kef BLADE a much more expensive pair speakers.