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 Eµ Modular

  

Overview
4070 System


Created by
 Western Graphics
Last modified
 13 March, 2004
 

Eµ Modular Overview

Eu Modular
Modular During late 1972 Dave and Scott worked on building a set of analog synthesizer circuits and a monophonic keyboard for a new totally modular synthesizer. In early 1973 they launched the new Modular synthesizer as a completed product and as a set of kits.

Over the next year the number of high quality, professional modules expanded. The panels were built of heavy duty aluminum, with cemet pots and full sized 1/4" jack connectors. Prospective owners could specify which module and cabinets they wanted, as well as choosing from either a monophonic or polyphonic keyboard. Customers could also buy sub-modules, which were the core elements of each module, to build up into finished modules.

MODULAR MP3 Demos !!
 Courtesy of Ed Rudnick  at E-mu Systems

FizzBelch (6MB)

download mp3

Pineapple Rag (815KB)

download mp3



Documentation Dave and Scott produced their first official catalog in early 1974 with a detailed listing of every module and sub-module available. They also produced a short form catalog in the same year, and a price list. During the next 2 years they issued regular minor updates to the manual every 6 months or so, and price lists were also updated - although the prices didn't really change much. The Technical Catalog was re-issued in 1978 with the revised SSM based modules, and then a final version was issued in September 1980 complete with details of the Audity System.

Users The Eµ Modular was initially aimed at experimenters and hobbyists, but universities and high profile studios around the US became the key customer base. Several well known 1970's US based musicians bought examples, and Patrick Gleeson in San Francisco created one of the largest configurations and recorded a number of albums based on the Eµ Modular. More recent users include Vince Clarke.

Low Profile Dave and Scott kept their company at a low profile for the first few years. "We are basically opposed to conventional advertising, and prefer to rely on word of mouth". They did build up a dealer network in the US, as well as selling directly from the factory. Dealers were expected to have a demonstration modular in a studio environment. They exhibited at AES for the first time in 1975.

Models The Eµ Modular synthesizers were built to order, so each one of the approximately 100 - 150 made are all different. They were manufactured from 1973 - 1981.

Design
"The goal of our circuit design is to get the ultimate in performance, compatibility with competitive professional pricing. Of particular significance are the criteria of wide dynamic range, low distortion and noise, flexibility and reliability. The modular system was conceived as an optimum general purpose studio unit, also usable in sophisticated live performance".
    
From the Eµ Systems Technical Catalog 1974

Values Today Eµ Modulars range in value depending on the configuration and condition, but a typical price is $/£8 -10,000.

Why Eµ ?
  Dave named the company after the initial letters of Electronic Music, and then choose Greek for the Mu. "Our business is and will continue to be a modest venture; quality electronic music systems are not a volume product and cannot alone support a large corporation. We prefer to think of ourselves as craftsmen rather than manufacturer, as each system we build gets a good deal of special attention".

Dave and Scott dropped the Greek alphabet around 1980, after becoming an incorporated company called E-mu Systems Inc. Greek was not allowed in a USA company name!

Other Developments Whilst continuing to manufacture the modular range, Eµ  Systems also worked on a number of other interesting developments. They developed a 16 voice polyphonic digital scanning keyboard in 1976 using a Z80 microprocessor (after building a monophonic one in 1973 using TTL logic). This became the basis for the Sequential Circuits Prophet 5 (and provided excellent license revenues!) and various Oberheim's.

They also worked on an abortive Guitar synthesiser for Dave McLaughlin, and they collaborated with Solid State Music to create the famous range of SSM analog synthesiser chips (used in several famous synthesizers and some Emulator's).

 Product Spec

* Analog Modular Synthesizer
* Modular Digital Sequencer
* Digitally Scanned Keyboards
* Floppy Disk Storage
 

  Manuals

* Eµ Short Form
     Catalog 1974  2.8 MB

* Eµ Technical Catalog
     1974           8 MB

 

* Eµ Price List 1974
                       28 KB

* Eµ Technical Catalog
     1978          4.9 MB

* Eµ Modular Brochure
     1977          6.7 MB

* Eµ Modular Operation
     Manual      4.5 MB

* Modular Calibration
     Notes           33KB

 

 

 Modules

Basic Modules
*
2000 - VCA
* 2010 - Quad VCA
* 2100 - VCF LPF
* 2110 - VCF - HPF
* 2120 - UAF
* 2140 - Resonant Filter
* 2145 - Filter Controller
* 2200 - VCO
* 2210 - Saw/Pulse VCO
* 2310 - Early TG (1973)
* 2320 - Early TG (1973)
* 2340 - VC Lag
* 2350 - Dual TG
* 2355 - VC TG
* 2400 - Noise Source
* 2410 - Sample & Hold
* 2420 - Dual Preamp
* 2430 - Ring Modulator
* 2440 - Env Follower
* 2450 - Quad Invereter
* 2451 - Potporri
* 2455 - Mixer
* 2460 - Dual Reverb

Modular Sequencer
* 2500 - VC Clock
* 2510 - Address Generator
* 2520 - Voltage Source
* 2530 - Analog Switch
* 2540 - Memory Address
* 2545 - Memory
* 2546 - Programmer
* 2547 - Tape Interface
* 2550 - Hex Inverter
* 2551 - Triple OR
* 2552 - Triple Latch
* 2553 - Dual One Shot

Keyboards
* 4000 - Monophonic
* 4050 - Polyphonic
* 4060 - Keyboard/Sequencer
* 4070 - Disk Subsystem

 Modular Demo


 

 Prices

New Prices 1973 - 1981
*  $3 - 10,000

Secondhand Prices
* Very hard to locate
* $5- 10,000