How about an Odyssey Audio Cyclops integrated? It puts out 110wpc and 40 amps peak. That should control your Harbeth speakers quite well. They sell it on their web site for 995 and you can get a souped up version for a little more. They also come with a 20 year warranty.
I am a VERY satisified owner of their Stratos stereo Extreme amp and Kismet Reference speakers.
Bob
I am a VERY satisified owner of their Stratos stereo Extreme amp and Kismet Reference speakers.
Bob