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The Amazing Ensoniq

Mar 23rd 2016

Keyboard Kountry carries a large collection of parts for many Ensoniq keyboards. Most of our parts are used but, unless otherwise stated, all electrical parts have been tested for proper functionality. Here's some interesting information about Ensoniq.


Ensoniq was founded in 1982 by former MOS Technology engineers Robert "Bob" Yannes (designer of the MOS Technology SID chip for the Commodore 64 home computer), Bruce Crockett, and Al Charpentier. Their first product was a software drum machine that ran on a home computer.

In January 1998, ENSONIQ Corp. was acquired by Creative Technology Ltd. for $77 million, and merged with E-mu Systems to form the E-Mu/Ensoniq division. The fusion with E-mu sealed Ensoniq's fate: after releasing an entry-level E-mu MK6/PK6 and Ensoniq Halo keyboards - essentially keyboard versions of the Proteus 2500 module - in 2002, the E-Mu/Ensoniq division was dissolved and support for legacy products was discontinued soon afterward.

Musical instruments and digital systems

ESQ-1 (1986)

Ensoniq entered the instrument market with the Mirage sampling keyboard in 1985. At the price of $1500USD it cost significantly less than previous samplers such as theFairlight CMI and the E-MU Emulator. Starting with the ESQ-1, they began producing sample-based synthesizers. Following the success of these products, Ensoniq established a subsidiary in Japan in 1987.

Ensoniq products were highly professional. Strong selling points were ease-of-use and their characteristic "fat", rich sound (generally thought of as being an "American" quality, as opposed to the "Japanese" sound which was more "digital" and somewhat "cold"). After the Mirage, all Ensoniq instruments featured integrated sequencers (even their late '80s and early '90s samplers) providing an all-in-one "digital studio production concept" instrument. These were often called "Music Workstations". Starting with the VFX synthesizer, high-quality effects units were included, in addition most synthesizer and all sampler models featured disk drives and/or RAM cards for storage. The manuals and tutorial documents were clearly written and highly musician-oriented, allowing the users to quickly get satisfactory results from their machines. In 1988, the company enlisted the Dixie Dregs in a limited edition promotional CD "Off the Record" which featured the band using the EPS sampler and SQ-80 cross wave synthesizer.

The company had much success with the SQ product line starting in the early 1990s. This was a lower-cost line that included the SQ-1 (61 keys), SQ-2 (76 keys) and SQ-R (rack-mounted, with no keys or sequencer). Later versions were produced with 32 sound-generating voices.

ASR-10 (1992)

The company's heyday was in the early 1990s when the VFX synthesizers offered innovative performance and sequencing features (and terrific acoustic sounds), along with the ASR series of 16-bit samplers which also integrated synthesis, effects, and sequencer into a single-unit digital studio. The TSsynthesizers followed the legacy of the VFX line, improving several aspects such as the polyphony, effects engine, sample-loading capabilities and even better synth and acoustic sounds. The DP series of effects rack-mount units offered parallel processing and reverb presets on a par with Lexicon's offerings, but at affordable prices.

DP/2 (1995)

Despite these strengths, early (1980s) Ensoniq instruments suffered from reliability and quality problems such as bad keyboards (Mirage DSK-8), under-developed power-supply units (early ESQ1), or mechanical issues (EPS polypressure keyboard). Through the early and mid-1990s, much effort was focused on improving the reliability of the products. The company didn't manage to reinvent its workstation concept in order to survive the mid and late '90s, and no lower-budget versions of their keyboards were offered to replace the aging SQ line. Excellent synthesizers like the VFX or TS models lacked cheaper rack-mount counterparts. Finally, while the competition's products were continually evolving and newer technologies such as physical modeling were introduced, Ensoniq failed to follow the late '90s market orientation, often recycling old concepts on their new products. During this time, much of the engineering effort and company resources were focused on computer sound cards, which offered more profit for the company.

Timeline of major products

1985 - Ensoniq Mirage

1986 - Ensoniq ESQ-1

1986 - Ensoniq SDP-1 Sampled Digital Piano

1988 - Ensoniq SQ-80

1988 - Ensoniq EPS

1989 - Ensoniq EPS-M

1989 - Ensoniq VFX

1990 - Ensoniq SQ-1

1990 - Ensoniq SQ-2

1990 - Ensoniq SQ-R, later Ensoniq SQ-R plus

1990 - Ensoniq EPS 16 Plus

1990 - Ensoniq SD-1

1992 - Ensoniq KS-32

1992 - Ensoniq ASR-10

1993 - Ensoniq TS 10

1993 - Ensoniq DP/4

1995 - Ensoniq DP/2

1996 - Ensoniq MR61

1996 - Ensoniq KT-76

1997 - Ensoniq ASR X

1997 - Ensoniq E Prime

1998 - Ensoniq Fizmo

1998 - Ensoniq ZR-76

1998 - Ensoniq ASR X Pro

1998 - Ensoniq PARIS Digital Audio Workstation

2002 - Ensoniq Halo (E-mu product using Ensoniq brand)