Just finished listening to The Beatles White Album Super Deluxe via Chromecast Audio -> DarkVoice 336SE -> 6xx. It’s a winner. I have an RCA 6AS7 and Shanguang Treasure 6SN7 tubes in the DarkVoice. This is a fantastic combo. Lush tube sound, detailed and controlled low end with mids and highs that are just right.
While everything I listen to with this setup sounds excellent I especially enjoy rock and jazz recorded in the 60s and 70s with this setup. The guitars, horns and vocals are sublime. As has been written on this site many times before, the DarkVoice and 6xx are made for each other. If you have one and not the other you are missing out.
In in addition to the Beatles re-release I have also really been enjoying Van Morrison’s ... It’s to Late to Stop Now(Live) vol II, III & IV and Oliver Nelson’s Blues and the Abstract Truth. These album just sound right when the air is cooling and the leaves are falling.