What a blast! Listening to everything and anything! Just got the new PSAudio Nuwave DSD DAC in the system, it is a noticeable upgrade from my previous PSAudio dac.. Everything is more "musical", more information in the music, exquisite detail Listened with the 6 pack for while until went into distortion, same bad adapter, so ordered a new one. Using the EL3N's and TS 5998's just amazing, and listening to DSD files, well the detail is immense. Please forgive pic of 6 pack as that is what I was using when first installed dac, but it is okay now with only one tube per socket, as required!! It is amazing how the increase in clarity, has opened up the Sennheiser 800 even more! Totally satisfied with the system now. Tube rolling will be even more interesting now.