1954 Edgar Villchur and Henry Kloss release the AR-1 speaker for Acoustic Research. It is the first acoustic suspension loudspeaker, allowing for miniaturization in speaker design.

1959 Arthur Janszen (with Henry Kloss) releases the Model Nine loudspeaker [1] for KLH Research, a full-range electrostatic speaker that is still revered by audiophiles.

1961 HH Scott releases the 350A, thefirst commercial stereo FM radio receiver.

1970 Advent Corp.’s Model 200 cassette tape deck [2] brings Dolby B-type noise-reduction technology to the masses. It also was invented by Henry Kloss.

2005 Harmonix Systems’ “Guitar Hero” [3] real-time music video game (“Rock Band” would come out two years later) is a technical tour de force. Alex Rigopulos and Eran Egozy, the company’s founders, had met at MIT’s famed Media Lab.