PMT Audio
Coles 4038 Studio Ribbon Microphone

Coles

4038 Studio Ribbon Microphone

Ribbon Microphone

From Coles:

The 4038 Studio Ribbon Microphone is of British Broadcasting design (BBC) and used for broadcasting and recording such sounds where a clear smooth wide range frequency response, absent of transient distortion and relatively high sensitivity is essential.

The 4038 has a proven reliable performance capability, being since its introduction, used by broadcasting networks throughout the world such as the BBC.

The frequency response of the 4038 is exceptionally flat from 30 to 15,000 c/s and throughout this range the shape of the bi-directional (figure of eight) polar response is maintained substantially constant both in the horizontal and vertical planes, giving a natural smooth sonic quality textured response to sound signal being picked up.

Specs

Type
Pressure gradient transducer ribbon microphone
Ribbon
Low mass damped ribbon to control transient response
Polar response
Bi-directional
Magnetic fields
By use of hum neutralising wiring and magnetic shielding of the toroidal ribbon to line transformer 30 to 40 dB reduction is achieved in response to stray disturbing magnetic fields
Frequency response
30 Hz to 15,000 Hz
Impedance
300 ohm
Sensitivity
–65 dB W.R.T. 1V/Pa
Distortion
Less than 1% at 125 dB SPL
Connection
By means of 4069 3 pin jack plug. Pin 1 positive – Pin 2 negative – Pin 3 screen
Body housing
Made of heavy gauge perforated brass backed by finely woven monel mesh. Rotating hinge connection allows microphone to tilt through 90° and turned in any direction when either suspended or free standing
Dimensions
7 1/4" (197 mm) x 3 1/4" (83 mm) x 2 3/8" (61 mm)
Weight
2 lb. 6 oz. (1.08 Kg)
Finish
Black stove enamel textured paint
Packaging
Each microphone comes in a foam lined rigid plastic carrying case with 4069 jack plug, and soft cloth protective bag
Accessories
4070 Floor stand plug adaptor, 4071 Mic to stand adaptor with XLR, 4069 to XLR, Soft cloth protective bag, Foam lined rigid plastic carrying case
Made in
England

Source: Coles 4038 Studio Ribbon Microphone technical specification (PDF)