It just so happens that within a short space of time I have listened to two great reasonably priced devices - last month it was the Mytek streamer and now it is the LEBEN CS600X. I have not heard such good audio products in a long time. Leben charms with beautiful timbre, this is just a given with Japanese amplifiers but Leben also offers great dynamics, bass and spacing. Those are elements that are not always associated with EL34 tubes.
This is an extremely functional device, because it is also a high-end headphone amplifier and one can also use various power tubes in the CS600X. The only thing missing is remote control, everything else is great !.
That is why I have to award it the RED FINGERPRINT and give it my fullhearted recommendation.