Ralph @atmasphere was my primary reasoning to try the 6SN7. No one is kinder, smarter and with incredible patience. However, he hasn't been able to talk me into his class D AMPS yet.......
A week or two ago someone posted about removing the PreAmp from your system and go direct from the DAC . I tried for a week . It was clean, clear and had Dynamics but........lacked engagement . I of course but the pre back in the system yesterday .