PS Audio AC12 is better than the older DCCA's. Not huge differences but I found the PSA AC12 having more speed and clarity. The new DCCA's are built completely different and my bet would be on the new DCCA without listening. I have had fellow members tell me the difference between the old and new are startling. I am now using the new BMI MK5 which is 10 times the cord the PS Audio AC12 puts out. Pretty pricey but raised my musical enjoyment to a different league.
