jonlai9I was part of the previous Aune T1 (with electro harmonics 6922EH) drop as well as the HD650 drop. These two sound fantastic together! Clear highs and an overall full sound. If there was any room for improvement it would be with the mids (but that's reaching for a gripe). I've read upgrading to specific tubes will help with the improvement of the mids. My favorite part is the soundstage, I can't get enough of it!