I don't have a 205 but I do have a Modwright BPD 83SE with the outboard tubed power supply. The 6SN7's are the Psvane CV-181 and the 5AR4 is some huge Russian variant. I had a Cambridge 851C and extensively compared the two sans preamp into a Cambridge 840W, a pair of Xindak XA8800 monoblocks (the big ones), and a 4 channel Jaton AV-AP5140. Speakers were BG Corp 520DX, Meadowlark Hot Rod Herons, and Triangle Luna 260's. Both players had stock fuses (as far as I know on the Oppo that is). I'll keep it brief in saying that I kept the Oppo and let the Cambridge go. The Cambridge was an all around fine player but the Modwright Oppo was slightly more detailed and certainly possessed a deeper, wetter soundstage, being more palpable. I did prefer the Cambridge in the lower range being faster and more articulate. I'm not criticizing the Cambridge at all; just saying that the 205 modified by Modwright should be a significant improvement though the additional cost with quality tubes is equivalent to buying another 851C so it should be quite a bit better.