You maywant to look at Oppo 105. you can run the xlr of the Oppo to your integrate or future tube amp and the sub out to your Rythmik. (select small Front + sub in Oppo speaker s/u page).
Yes, the EE dac ”maybe better” but IMO, the Oppo dac is not that bad either. and on the plus side you gain a preamp, a blu ray, sacd player and the most importance is the bass managerment systemat a very afordable price. And yes, you will have tube and you have a full range system