Like Atmasphere, I too would have to say our own Purity Audio Design pieces. There are other preamps I do like and dislike which aided in the design of ours.
Preamps I do like include; Shindo, Audio Note as well as some of the new upper end solid state units. There is a lot of good gear out there.
Preamps I do like include; Shindo, Audio Note as well as some of the new upper end solid state units. There is a lot of good gear out there.