Lii Audio F-15, Alpair 12P, Magnepan 1.7, Monolith M1570, Même 99 Neo, HD650 with Burson Audio V6 Classic
As you can see on the first picture I use an very old Burson audio Opamp, the first I bought from Burson and the only one that can fit here! The cover plate touch the top of the Opamp ! It work great with the V6 Classic.