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Coles Electroacoustics Ltd. 4104,
4038, and 4115 ribbon microphones

Three Coles mics Coles 4104 Coles 4104 Coles 4104 Coles 4104 Coles 4104 4104 specifications 4104 description Coles 4038 Coles 4038 Coles 4038 4038 specifications 4038 description Coles 4115 Coles 4115 Coles 4115 Coles 4115 Coles 4115

We asked Wes Dooley of Audio Engineering Associates about the connec­tion between STC and Coles Electroacoustics, since both companies have offered some of the same microphones for sale over the years. Here is Mr. Dooley’s response.

“Colin and Les (thus the CoLes) had worked for STC as toolmakers, then started their own shop. At some point in the mid 1970s STC jobbed out mic production to Coles. Two years later they decided that mics made no money and were going to discontinue them. Colin and Les bought the tooling that was already at their shop, plus the rights to whatever they needed, and continued manufacturing under the Coles name.”

Following receipt of Mr. Dooley’s remarks, Mr. Steve Beanland of Coles Electroacoustics joined in. Here are his words.

“Coles was founded in 1964. We were two chaps with one lathe in a garage in Harlow and we made anything that we could sell at a profit. It was only a matter of months before we moved to a 400 sq ft factory annexe and took on two men a year later. During this period we moved from general engineering to a degree of specialization in amplifiers.

“At the end of 1969 we had the opportunity of developing a piece of industrial land in Hoddesdon, far too big for our needs at the time, but offered at attractive terms. We built a small factory of 2000 sq ft, which left most of the land still available for future expansion. After two years, we added 2000 sq ft and soon after that another 1000 sq ft of office block as well.

“The most significant development took place in 1972 when we had the chance of manufacturing top quality acoustic equipment under license for STC—the gigantic Standard Telephones and Cables Limited—which was a kind of success story in its own right.

“We took on all their staff, tooling, expertise and experience and moved the production from Harlow to our new factory in Hoddesdon. This was also a quite exceptional piece of luck because when STC, two years later, decided to give up marketing this equipment, we bought all the manufacturing rights and patents and took over their market.

“We have now added another 5000 sq ft to the factory and have further extended the markets overseas and have continued to improve existing products and develop new ones.”

Best regards,

Steve Beanland

Coles Electroacoustics Ltd
Pindar Road

For those of us who use certain Coles Electroacoustics mics, it can be a challenge finding a cable to fit. Below are three images of an adapter that converts these mics for use with an XLR-equipped cable. The same adapter works with STC mics as well as with Western Electric mics. These adapters are not available at this web site.

A few vendors offer these adapters on the Web.


These convert the old WE, Coles, and STC connector to XLR.


A contemporary XLR-equipped cable can then be used.


Download The STC (now Coles)
4038 Ribbon Microphone


Download The STC (now Coles) 4104
Noise-Cancelling Microphone

Coles Electroacoustics Ltd. logotype

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