I send another reg. for Sony CDP-X779ES for two dual V6 classic Op amps. My experience with Burson discrete Op amps is very good. I use your Op amps more than last two years. In this moment, I use three, four equipment with Burson SS op amps. That means, I have 13 Burson Op amps: 5psc V6 dual Classic, 5pcs V5 dual, 2psc V5 singl, and one V4… I think that marks my opinion about Burson SS Op amps. I will send you reg. for two another equipment…