Coles 4115

Coles 4115

Broadcaster's Microphone

The 4115 Broadcaster’s Noise Cancelling Ribbon Microphone is used for close indoor talking situations where good quality broadcasting and public address announcement speech is required to be reproduced in conditions with high background noise present. The 4115 has a proven reliable performance capability, being since its introduction, used by broadcasters throughout the world. The high degree of acoustic damping applied to the robust corrugated aluminium ribbon ensures freedom from resonance and relative immunity to handling noises and mechanical shocks. There are many situations in which speech is partially or completely drowned out by background noise; for example in aircraft, saw mills, shunting yards, or power stations. Yet these are all places where it may be a matter of life and death to have spoken instructions heard and obeyed without a second’s delay. The 4115 is the microphone of choice for these circumstances. There are two special versions for use in aircraft where, in addition to the other requirements, it needs to be compatible with the aircraft’s electronics. These models are approved by the Civil Aviation Authority, adn are also the choice of aircraft manufacturers and airlines. Features

• Up to 20 dB reduction of middle and low frequency interfering sounds
• Close talking without breath or pop noises
• Broadcast quality speech reproduction
• 4038 High Fidelity 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
• All microphones factory tested in free field conditions
• Impedance 300 ohm
• Sensitivity -65 dB W.R.T. IV/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 7¼” (197 mm) x 3¼” (83 mm) x (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, for safe keeping. 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