Nothing shill about this. I have a small taste of the 300b sound from a Ming Da amp with 300b and 805 tubes. It sounded quite good to my ears, but has been a PITA with respect to reliability. I've read a lot of Audiogoners who have replaced tube separates with the DK Design and I recently auditioned the amp. I was very impressed with the amp, but in the set up I heard it didn't have quite the seductive sound I had heard from the 300b's. I would like the best of all worlds. Just wondering what more experienced listeners have found.