Infinity had a reputation as a company that continually pushed the state of the art, and often made the best speakers that you could buy at any price. They started in 1968 with the Servo Statik I, and all of their subsequent top speakers were variations on that theme: dipole radiation pattern, push-pull planar drivers, and servo-controlled bass. I'm going to list what I think were Infinity's top speakers during each era of the company. If I miss anything, please let me know, and I'd love to see comments on this history. 1968-1977 Servo Statik I / Servo Statik IA 1977-1982 Quantum Reference Standard / Quantum Line Source (EMIT introduced) 1983-1987 IRS III / IRS V / RS1b (not really the top of the line and not really servo bass, but very close) (EMIM introduced) 1988-1989 IRS Beta / IRS Gamma (L EMIM and SEMIT) Does anyone have any other nominations or comments on this list? Does any other speaker company have such a pedigree of incredible achievement?