Sources are NAD M51 DAC , OPP0 103d, Bluesound Vault 2i, tuner. Turntable
The Neve is a fine amp... it really is clean and detailed. If you are looking for precision, studio quality it's there. It sounds great don't get me wrong but the Quicksilver is more engaging, you know you are listening through a SET amp.
The Quicksilver has incredible tone and a natural quality to the sound. It's lightning fast and has airy highs . The bass is very well defined, again, great tone. It seems much more powerful than the Neve but being tube I would expect it to be. I haven't spent a lot of time with this amp but I can say it's the best sounding headphone stage I've ever heard.
It' s built exactly like my Mid Monos.... it is a tank!!! Same heavy gauge steel used in chassis, same power transformer. It is beautifully constructed. I had mine built with optional chrome transformer cover, it looks sharp.
Im using Grado RS2e and Klipsch HP 3 primarily, I used them with some old beyer 600 Ohm and it drove them all no problem. This amp has balls ! I also used a pair of Sennheiser ear buds and those too have never sounded better. $1000 isn't cheap but it's worth it . Best new piece of gear I have bought in a while.