Nobsound NS-08E with Burson V5i Opamps
Very easy to install and quite pleased with the results. The v5i seems to have cleaned up the high and made the bass tighter than before.
Hifiman Susvara, Massdrop x Sennheiser HD 6XX with Burson Soloist 3XP
Great customer service – responded promptly to inquiries. Very satisfied with purchase.