It did not thrive, and never emerged from a bankruptcy declared in March 1981. Citing high labor costs, it closed its Cambridge factory in 1979, laying off most of its 650 workers, and moved production to New Hampshire. Eventually, long after Kloss' departure, Advent ran into hard times. He invented the Novatron tube there, which increased the efficiency of projection TVs.Īdvent continued to concentrate on low-cost high-performance consumer audio products. In 1977, Kloss founded Kloss Video Corporation (KVC) as a spin-off company. In 1972, the Advent VideoBeam 1000 was finally released, the first large-screen projection television for home use. Kloss introduced the Advent 201 in 1971, incorporating Dolby B noise reduction (for both recording and playback), along with chromium dioxide tape in the first popular high fidelity cassette deck. Kloss then resumed work on increasing the fidelity of cassette tapes, a format that had originally been developed to be used only for voice dictation. They were usually offered in both wood veneer and vinyl-covered 'utility' cabinet versions, which other than appearance were acoustically identical. It rivaled the sound of the then top-line AR Model 3a (which used three drivers and a 12-inch (30 cm) woofer), but only cost about half as much.Īdvent produced a number of different versions of the 2-way Advent, including the Advent Loudspeaker, the Smaller Advent Loudspeaker, the 'New' Advent Loudspeaker, Advent/2, Advent/3, 4000 series, and 5000 series, to name a few. To earn some money, he decided to build a high-performance low-cost dual driver speaker system with 10-inch (25 cm) woofer called simply The Advent Loudspeaker (later given the retronym the Larger Advent, after introduction of The Smaller Advent Loudspeaker). Around 1968, Kloss quit KLH to develop a low-cost projection television, but had trouble financing the leading-edge research and development that was still required. The name came from the legal description the advent corporation used in the incorporation documents as a placeholder name before the actual name was selected. Later models also supported recording on tape.Īdvent Corporation was a consumer audio and video hardware company founded in Cambridge, Massachusetts by Henry Kloss in 1967. An early stand-alone Advent Dolby noise reduction unit, for tape playback use only.

Original large advent speakers specs