@Currawong said the Hugo2 was the only one he’s tried that ran them.
Yeah, most portable gear didn't seem to be a good match. There was a stark difference, mainly in the quality of the bass, between even more powerful portable gear and desktop amps. Just after I shot the video, I did get in an L&P L6 (that crazy R2R DAP) and it could handle them, which was unexpected. But at $6k or whatever it costs, it dang well should!
Any recommendations for a tube amp for the LCD 5? I'm thinking in the W22 or the Feliks Audio Euphoria.
I'd honestly be surprised if any of the high-end tube amps didn't do a good job. I have the Studio Six here, and, once warmed up, it nails it with both speed and a touch of musicality that is spot-on for the LCD-5s, IMO anyway.
I no longer have the susvara, so I cannot comment on the direct comparison of speed and detail. But I do know that the LCD-R, on a speaker amp, approached the susvara in speed and detail, and the LCD-5 has more speed and detail than the LCD-R. Take that however you will.
It will be interesting to compare them both out of the Master 10 then, which I haven't done yet. The LCD-Rs were a whole different beast from it.
Speaking of the Susvaras... I shot another video. You'll have to wait a bit though for it.