The Commodore 64 team strikes out on its own.

Ensoniq was founded by the engineers behind a home computer. In its March 1985 case history of the Commodore 64, IEEE Spectrum reported that members of the design team — Albert Charpentier, Robert “Bob” Yannes and Charles Winterble, with David Ziembicki and Bruce Crockett, who had helped bring the machine into production — had left Commodore in the spring of 1983 and formed a company called Peripheral Visions. Yannes had designed the Commodore 64’s SID sound chip. English Wikipedia gives Ensoniq’s founding year as 1982; the 1985 account puts the departure in 1983, so we note both.

The plan, IEEE Spectrum said, was to design another computer. To raise working capital the group took a contract from Atari to design a keyboard for its Video Computer System, a product that was previewed but, as the video-game market crashed, never released; Commodore sued, saying the project belonged to it. By early 1985 Peripheral Visions had been “renamed Ensoniq” and was about to “release its first product, a music synthesizer.” The magazine listed Charpentier as vice president of engineering, Yannes as senior designer and Ziembicki as manager of production control.

The company was based in Malvern, Pennsylvania, west of Philadelphia, and Wikipedia says its plant in nearby Great Valley housed manufacturing and employed nearly 200 people. Unusually for a small instrument maker, it designed its own sound chips.

The Mirage, the ESQ-1 and the ASR-10.

The first instrument was the Mirage sampling keyboard, which reached the market in 1984–85. At $1,695, Wikipedia says, it cost far less than the Fairlight and E-mu samplers that came before it, and it sold 8,000 units in its first year — figures we give as Wikipedia’s. Its sound came from the Ensoniq 5503 Digital Oscillator Chip, or DOC. Yannes said in a 1996 e-mail interview that the DOC was modelled on the Mountain Computer sound card for the Apple II rather than on his SID, and that every Ensoniq sound chip used multiplexed oscillators to fit at least 32 voices on a chip. The same chip went into Apple’s Apple IIGS computer under a 1986 agreement, Wikipedia records.

A run of instruments followed: the ESQ-1 synthesizer in 1986, the SQ-80 and the EPS sampler in 1988, the VFX in 1989, the lower-cost SQ-1 in 1990, and in 1992 the ASR-10 sampler and the TS-10 synthesizer. Most combined sounds, effects and a sequencer in one keyboard — the “workstation” idea. The company also made the DP/4 effects unit (1993), the ASR-X (1997) and the PARIS recording system (1998), and set up a Japanese subsidiary in 1987. Wikipedia credits the instruments with ease of use, a “fat,” rich sound and clearly written, musician-oriented manuals, but also notes reliability problems with some early models, and price competition from Roland, Korg and Yamaha. In 1988 the company enlisted the Dixie Dregs for a limited promotional CD, Off the Record, on which the band played the EPS and the SQ-80.

Each generation of chip built on the last. Wikipedia traces the line from the DOC to the DOC II in the EPS, the OTIS in the VFX, the OTTO in the ASR-10 and TS-10, and finally the OTTO-48 in the ASR-X, alongside an effects processor, the ESP, used from the VFX onwards. The chips found other homes too: some of them were used in arcade games, and Ensoniq licensed its OTTO chip to Advanced Gravis for the Gravis Ultrasound card, and from 1994 sold its own PC sound cards — the Soundscape range and later the AudioPCI, which shipped with many IBM-compatible computers, according to Wikipedia.

Samplers and digital synthesis.

Digital sampling and synthesis reached recording studios in the late 1970s and 1980s. Fairlight, founded in Sydney in 1975 by Peter Vogel and Kim Ryrie, introduced its CMI in 1979; New England Digital, founded in Vermont in 1976 by Sydney Alonso and Cameron Jones, built the Synclavier; and Wolfgang Palm’s PPG, in Hamburg, introduced wavetable synthesis in 1979, English Wikipedia says.

American makers brought prices down. E-mu, whose name Dave Rossum coined in 1971 and which he and Scott Wedge formed as a partnership in 1972, moved from modular synthesizers to samplers; Ensoniq, of Malvern, Pennsylvania, launched its Mirage sampler in 1985 at $1,695; Kurzweil, founded in 1982, launched its K250 in 1984; and Alesis, formed in Hollywood by Keith Barr in 1984, Mix reported, launched the ADAT recorder in 1991.

Few stayed independent. PPG closed in 1987, and New England Digital in the early 1990s. Creative Technology of Singapore bought E-mu in 1993 and Ensoniq in 1998, and merged them. The Korean piano maker Young Chang bought Kurzweil in 1990; Hyundai Development Company bought Young Chang in 2006, and the group, renamed HDC Young Chang in 2018, is based in Incheon; Kurzweil’s own website names no parent company today.

Some names returned. Blackmagic Design, the Australian video company, bought Fairlight in 2016 and sells Fairlight consoles. Cameron Jones bought back the Synclavier trademark, and his Synclavier Digital released the Regen synthesizer in 2022. Jack O’Donnell bought Alesis in 2001; it belongs to his inMusic group of Cumberland, Rhode Island.

This guide sets out what can be checked about each brand — who founded it, who owns it, and what it says about where its products are made — and marks clearly what rests only on the company’s own word.

Bought for its sound cards.

Those sound cards decided the company’s fate. In January 1998 Ensoniq was bought by Creative Technology, the Singapore company behind the Sound Blaster cards, for US$77 million, according to Wikipedia’s articles on both companies, which say Creative wanted Ensoniq’s PCI audio technology. Creative already owned the California sampler maker E-mu Systems, bought in 1993, and it merged Ensoniq’s music business into it. Sound On Sound, in a September 2002 history of E-mu, was blunt: Creative “forced them to merge with Emu. This proved unsuccessful,” and Ensoniq “were closed down completely.” In that account, only the Ensoniq PARIS digital mixer made what the magazine called “a short-lived appearance” before the closure. E-mu itself, by then based in Scotts Valley, California, carried on under Creative.

Wikipedia says the Pennsylvania operation was wound down over the following three years. The name appeared one last time in 2002 on the Ensoniq Halo, an E-mu keyboard, before the combined E-mu/Ensoniq division was dissolved and support for older products ended. Ensoniq is a defunct brand, remembered through its instruments and their manuals. The ensoniq.com address today shows only a parked holding page, and is not a source for the company.

For a design guide, Ensoniq shows how a brand can outlive the company that carried it, once that company is folded into a rival. Compare E-mu, the rival it was merged into, and Sequential. For this guide we use a slate blue and fog grey with a sans, an unofficial interpretation; no product or logo is reproduced.

Keep Ensoniq’s identity on hand — save it to a board in the Made Good inspiration library.