I have R-1's all over now. I had the opposite experience. My MF Trivista SACD>Placette passive >CJ Bi-amp SS system became warmer and nicer in the HF. There was less bass but it was nicer in character. I still remember my wife and I's first listen. We were both pleasantly surprised. The system became more laid back in character. I also use the Oyaide WPC-Z cover which I have come to believe is very beneficial. Over time there was no noticeable change from first listen. Mine were cryo'd. My P-300 got upgraded(components and outlets) and it was edgy at first and got better with time. About a month I'd say- or 50-100 hours. Good luck. Get a WPC-Z or two even though they cost more than the outlets.
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