Integrated amp for Synchrony Ones

It's harder to find integrated amps that double power to 4 ohm than it is separates. But they are out there. 3000 budget might limit options.

I have head them sound very good off higher power Audio Research and Rogue tube amps but I suspect they are designed to do best with higher power and current SS amps.

I would choose a well regarded 250 w/ch or higher SS Class D amp if it were me. If you have not heard a good Class D amp you owe it to yourself to check one out.

You want an amp that can double power output from 8 to 4 ohms and similarly to the extent possible from 4 to 2 ohm. That is not likely to be a tube amp. Class D amps are very efficient allowing for smaller size and less power draw to do the job and the better ones designed with more robust power supplies are likely to do best.

Having said that, the 80w+ tube amps I heard sounded very good indeed with those but if it is the best performance one seeks beyond just good sound, particularly in the bass, more power and current is the ticket and Class D a very efficient, practical and potentially cost effective way to achieve that.

Something along the line of. Bel canto c5i maybe.

I always like classe amps as well when I hear them ( not class d).

There is a Danish company gato that makes a very nice looking 250w/ch class d integrated but not sure how to find that one.

It sounds like a very good match to me, one I would consider myself.