Thanks again guys. Very informative responses. At the moment I've got the CODA S5.5 and the SimAudio 330A or 400m Mono blocks at the top of my list. The CODA is 45lbs. The SimAudio units are under 33lbs each. Have no actually experience hearing the CODA but I have heard several YouTube demos of the SimAudio amps. Even though YouTube is not HiRes I did get a sense of their character and it seemed relaxed and laid back with good control, deep bass and a very smooth high end.
I spoke to James at Destination HiFi and he said the S5.5 is a perfect match for my Harbeths and has several customer with that configuration.
I won't make a decision until my new Streamer and DAC arrive and I give the Benchmark AHB2 a shot. But I still feel that no matter how ut sounds I can do better than the Benchmark with the units I'm considering
You mentioned that your amp was superior to the Benchmark. Can you share your specific qualitative experiences in this regard. It would be helpful.
Please elaborate on your enthusiastic response to the CODA S5.5. What type of magic?