These speakers were designed for Audio Research. How about a ARC VT 100 or VT200. The JC 1 is good, also Bryston 7b. The maggies are easy to drive but need power to play loud where they really come allive.
I have a pair of Tympani ID's and I was briefly driving them with my NAD 50w 320BEE, which actually worked, although no doubt they weren't singing. I switched to an NAD C372 which has 150WPC and they came to life, not bad for an amp under $800. I briefly tried bridging the 372 into one speaker and it was alive, although NAD doesn't recommend bridging into a 4 ohm load I didn't have any problems at moderate volumes, which in my case wasn't my neighbor two flights commenting that I had an awsome set of speakers, I have audiophile neighbors.
If you have the bucks I would definitely try a Bryston amp but for under $1300 the NAD 372/272 set up is great.
Sincerely the metramonkey
Scifi, if you happen to check back here, give Mikej's BEL 1001 mkV (or a pair of used mk IVs) serious consideration. I switched from a Bryston 4BNRB to a BEL 1001 mk IV and was very pleased. The mk V is a big improvement.
I know of very few ss amps, and certainly none near their (relatively low) price that produce such effortless openness with planars. They produce prodigious amounts of current and never break a sweat driving difficult loads. BEL's designer/manufacturer is a music-loving minimalist (mil. spec. low parts count, short, simple signal paths) who constantly improves his design. This is his only electronic product.