In another thread they say the CXA-60 sound better than the CXA-80, you should also consider listening to the CXA-60insider9 said:May I suggest not to derail this thread any further.
OP, I recently sold my RX2s to a guy who recently purchased Cambridge Audio CXA-60. He planned to buy speakers second hand and when buying a brand new amp demoed it with Silver 2 and 6. He was really impressed with the pairing. Whether it's the pairing you'd enjoy is a different matter but a similar demo would be easy to do.
I'd suggest trying CXA-80 with new Silver 6 and see what you think. These should be easily available.