
Advent Corporation was a consumer audio and video hardware company founded in
Cambridge, Massachusetts
Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. It is a suburb in the Greater Boston metropolitan area, located directly across the Charles River from Boston. The city's population as of the 2020 United States census, ...
by
Henry Kloss in 1967. It closed in 1981.
Naming
The name came from the legal description ''the
advent corporation'' used in the
incorporation documents as a
placeholder name
Placeholder names are intentionally overly generic and ambiguous terms referring to things, places, or people, the names of which or of whom do not actually exist; are temporarily forgotten, or are unimportant; or in order to avoid stigmat ...
before the actual name was selected.
Products
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. To earn some money, he decided to build a high-performance low-cost dual driver speaker system with
woofer
A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 50 up to 200 Hz. The name is from the onomatopoeic English word for a dog's deep bark, " woof" (in contrast to a ' ...
called simply ''The Advent Loudspeaker'' (later given the
retronym
A retronym is a newer name for something that differentiates it from something else that is newer, similar, or seen in everyday life; thus, avoiding confusion between the two.
Etymology
The term ''retronym'', a neologism composed of the combi ...
the ''Larger Advent'', after introduction of ''The Smaller Advent Loudspeaker''). 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.
Advent 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. They were usually offered in both
wood veneer
Veneer refers to thin slices of wood and sometimes bark that typically are glued onto core panels (typically, wood, particle board or medium-density fiberboard) to produce flat panels such as doors, tops and panels for cabinets, parquet fl ...
and vinyl-covered "utility" cabinet versions, which other than appearance were acoustically identical.
The popularity of the Advent Loudspeaker overshadowed any other Advent products, even the eventually released first video projector for home,
Advent VideoBeam 1000.

Kloss then resumed work on increasing the fidelity of
cassette tape
The Compact Cassette, also commonly called a cassette tape, audio cassette, or simply tape or cassette, is an analog audio, analog magnetic tape recording format for Sound recording and reproduction, audio recording and playback. Invented by L ...
s, a format that had originally been developed to be used only for voice
dictation. The original Advent 200 model, launched in 1970, had exhibited mechanical problems and was quickly replaced by Advent 201 in 1971, incorporating
Dolby B noise reduction
Dolby Laboratories, Inc. (Dolby Labs or simply Dolby) is a British-American technology corporation specializing in audio noise reduction, audio encoding/compression, spatial audio, and high-dynamic-range television (HDR) imaging. Dolby lice ...
(for both recording and playback), along with
chromium dioxide tape in the first popular high fidelity
cassette deck
A cassette deck is a type of tape machine for playing and recording audio cassettes that does not have a built-in power amplifier or speakers, and serves primarily as a Transport (recording), transport. It can be a part of an automotive entertai ...
. Advent 201 was a "game changer":
Stereo Review
''Sound & Vision'' was an American magazine, purchased by AVTech Media Ltd. (UK) in March 2018, covering home theater, audio, video and multimedia consumer products. Before 2000, it had been published for most of its history as ''Stereo Review' ...
had found that it can successfully compete against more expensive reel-to-reel decks. Commercially it was not as successful as the loudspeakers were, but was manufactured for few years.
In 1972, the VideoBeam was finally released, the first large-screen projection television for home use. In 1977, Kloss founded Kloss Video Corporation (KVC) as a spin-off company. He invented the
Novatron tube there, which increased the efficiency of projection TVs.
Financial issues and closure
Advent continued to concentrate on low-cost high-performance consumer audio products. Eventually, long after Kloss' departure, Advent ran into hard times. Citing high labor costs, it closed its Cambridge factory in 1979, laying off most of its 650 workers, and moved production to
New Hampshire
New Hampshire ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
.
It did not thrive, and never emerged from a bankruptcy declared in March 1981. KVC passed on reacquiring the (by then) New Hampshire-based brand, which was later merged into
Jensen Electronics, which in turn was acquired by
Audiovox in 2004. KVC ran into increasing competition from Japanese manufacturers entering the now-proven market for large-format consumer TVs, eventually selling its assets and shutting down.
References
Sources
* {{cite book , last=Singer , first=H. , last2=Rosenblatt , first2=B. , title=Key Changes: The 10 Times Technology Transformed the Music Industry , publisher=Oxford University Press , year=2023 , isbn=978-0-19-765689-1 , url=https://books.google.com/books?id=t4fQEAAAQBAJ&pg=PA138 , access-date=2023-11-07
1967 establishments in Massachusetts
1981 disestablishments in New Hampshire
American companies established in 1967
Audio equipment manufacturers of the United States
Companies based in Cambridge, Massachusetts
Companies that have filed for Chapter 11 bankruptcy
Companies that filed for Chapter 11 bankruptcy in 1981
Defunct manufacturing companies based in Massachusetts
Electronics companies established in 1967
History of Cambridge, Massachusetts
Loudspeaker manufacturers