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BidirectionalColes Electroacoustics 4038

MSRP: $1,600 Bidirectional Ribbon Microphone

Coles Electroacoustics 4038

Description

The 4038 Studio Ribbon Microphone was designed by the BBC and originally manufactured by STC. Coles, the outsourced manufacturer, bought the rights to the STC microphone line in 1974.

Read about the research and design decisions that led to the 4038 in the BBC Engineering Division’s Monograph #4, The Design of a Ribbon Type Pressure Gradient Microphone (D.E.L. Shorter and H.D. Harwood, December, 1955).

It is one of the world’s best-known ribbon microphones.

The mic’s frequency response is flat from 30 to 15,000 Hz. The ribbon maintains a uniform figure-of-eight polar response in both the horizontal and vertical planes.

4038s manufactured today are identical to those manufactured in 1974. Despite advances made, for example, in magnet technology, the 4038 utilizes the same magnet initially spec’d by the BBC in the 1950s.

The output connector is a Western Electric 4069; the mic can be ordered with a 4069-to-XLR adapter.

Lynn Fuston / EQ Mag

With its waffle-iron looking swivel head, the 4038 is one of the most unique mic designs ever and still the favorite ribbon mic of many engineers. It has one of the most unique sonic characters of [ribbon] mics. With a very pronounced midrange peak, it sounded amazing on drums, even in mono. For female voice, it had a nice presence without much high end. On sax, it had a presence that would cut right through a track, but it sounded a bit pinched to me. On guitar it was not my favorite.

The Coles Electroacoustics 4038 is also known as: 4038 Studio.

The mic was released in 1961.

Pickup Patterns Pads & Filters
  • Bidirectional (30 - 15,000 Hz)
Ribbon Construction Impedance Max SPL
Low mass damped ribbon 300 Ohms (Low (50-1000 Ohms)) 125 dB
Weight Length Max Diameter Interface(s)
1080g (38.10oz) 197mm (7.76'') 83mm (3.27'')
    Power Specifications

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