Way back in the 1970's, when most of the listed speakers were around, there was another "star" mnamed Dayton Wright, named after Mike Wright. It was a gas-filled electrostatic design one would have to drive with a couple of Crown 300 amps or the Amzilla amp to get them singing — and sing they did. Later, it was discovered that almost all speakers developed a gas leak, that could be "fixed" only by the company and turned out to be a lot of inconvenience and outright hassle. The Kef 104 should also be in the line-up. Another honourable mention should include the ESS Heil spedakers (I don't remember their model name or number) — an then there was the JBL 100 that sounded just great when connected to a McIntosh amp.