The Ampex ATR-100 is a

multitrack tape recorder Multitrack recording (MTR), also known as multitracking or tracking, is a method of sound recording developed in 1955 that allows for the separate recording of multiple sound sources or of sound sources recorded at different times to create a ...

, designed by

Ampex Corporation Ampex is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor. The name AMPEX is a portmanteau, created by its founder, which stands for Alexander M. Poniatoff Excellence.AbramsoThe History ...

, of

Redwood City, California Redwood City is a city on the San Francisco Peninsula in Northern California's Bay Area, approximately south of San Francisco, and northwest of San Jose. Redwood City's history spans its earliest inhabitation by the Ohlone people to being a ...

, United States. It was introduced at the Spring 1976 AES Conference in Los Angeles,Alastair Heaslett and was geared towards the ultra high end studio market. The original versions were designed specifically as a

stereo Stereophonic sound, or more commonly stereo, is a method of sound reproduction that recreates a multi-directional, 3-dimensional audible perspective. This is usually achieved by using two independent audio channels through a configuration ...

quadraphonic Quadraphonic (or quadrophonic and sometimes quadrasonic) sound – equivalent to what is now called 4.0 surround sound – uses four audio channels in which speakers are positioned at the four corners of a listening space. The system allows for th ...

(2 or 4 track) mixdown and mastering deck. It has gained a reputation in the

recording industry A record, recording or records may refer to: An item or collection of data Computing * Record (computer science), a data structure ** Record, or row (database), a set of fields in a database related to one entity ** Boot sector or boot record, r ...

as the most accurate analogue tape recorder ever to be produced. The ATR-100 was designed by a three-person design team consisting of Robert P. Harshberger Jr. (motors and control system), Alastair M. Heaslett (signal electronics) and Roger Sleger (mechanical systems). o
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Features and design

Key features of the design are the machine's interchangeable headblock system, which allows the ATR-100 to be converted to run either quarter-inch or half-inch magnetic tape. Ampex was the first company to implement a servo-controlled, direct-drive-capstan tape transport, which allows the tape speed and tension to be continuously monitored by a servo relay. The transport consequently has excellent wow and flutter specifications. The ATR-100 also features dual

VU meter A volume unit (VU) meter or standard volume indicator (SVI) is a device displaying a representation of the signal level in audio equipment. The original design was proposed in the 1940 IRE paper, ''A New Standard Volume Indicator and Reference Lev ...

s, or four VU meters in the case of the four track models, and a digital tape timer. An optional

remote control In electronics, a remote control (also known as a remote or clicker) is an electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operate devices such as ...

is also available.

Upgrade

Approximately two years after the release of the ATR-100, Ampex released the next generation Ampex ATR-102, which was essentially the same machine as the ATR-100, with the exception of some repositioned components and slight design modifications.

Evolution

Following the success of the ATR-102, Ampex went on to release the 16-track Ampex ATR-116 and the 24-track Ampex ATR-124. Both machines were designed with the same transport and similar electronics. The Ampex ATR-124, though still widely regarded as the most accurate and best sounding multitrack ever produced, was a financial disaster for Ampex, resulting in only 62 being produced. Base price for these recorders in 1980 was $48,500 for the sixteen track machine and $62,500 for the 24 track machine. With additional components and customizations, either machine could easily reach over $100,000 in cost when it was originally released. Because of this, the Ampex ATR-124 is extremely rare, extremely expensive to service and maintain, and is referred to by many engineers as "The King of All Tape Machines."

References

External links

* {{cite web , url=http://recordist.com/ampex/docs/histapx/ampchrn.txt , title=Chronology of Ampex Professional Products , publisher=Recordist.com by Josephson Engineering , work=Ampex Virtual Museum and Mailing List , accessdate=November 16, 2018 , author=Sanner, Howard (Draft: 29 October 95; Rev. 4 November 99) Sound recording technology Tape recording