Coles 4104 Lip Microphone and BCD ALT-1 PRE-AMPLIFIER for Microphones.

Coles info

http://www.canford.co.uk/Products/92-392_COLES-4104-MICROPHONE-Lip

http://cvp.com/index.php?t=product/coles_4104

http://www.thomann.de/gb/coles_4104b_lip_microphone.htm

BCD info

http://www.canford.co.uk/Products/20-241_BCD-ALT-1-PRE-AMPLIFIER-Mic-line-auto-single-input-compressor-limiter

http://www.ebay.co.uk/itm/BCD-AUDIO-SOUNDMAN-ALT-1-Level-Taker-Mic-Amp-/171845821218

Used in a professional environment tested and working, has some signs of use marks on it but in overall good condition, comes in it's box with an XLR cable. The BCD units come a psu.

Coles Electroacoustics is a very long established manufacturer of specialised microphones and other acoustic transducers. The most well known are the legendary 4038 studio ribbon microphone, and 4104 and 4115 lip microphones.

4104

Broadcast quality noise-cancelling ‘lip’ microphone, specifically for commentary work in environments where the level of background noise requires that the microphone be used very close to the mouth. It is a gradient ribbon unit with a high degree of acoustic damping, fitted into a special case equipped with nose and mouth breath shields. The talking distance has to be controlled accurately in order to maintain the correct frequency response (avoidance of variation of proximity effect) and this is done by positioning bars which contact the user’s upper lip. Noise reduction is achieved partially through the polar response and partially through the substantial LF roll-off characteristics of the free-field response of the ribbon unit (which is optimised for a flat near-field response). The speech quality is good, mainly due to the correct balance being obtained between the nose and the mouth tones - any deficiency of the former gives a ‘stuffy’ and unnatural speech quality.

The breath shields are corrosion free stainless steel mesh, and the microphones incorporate a high degree of shielding against sources of electromagnetic induction, such as television monitors.

The frequency response is 60-12000Hz, and impedance 300ohms. Distortion is less than 1% at an SPL of 120dB. An XLR 3 pin male connector is incorporated in the base of the handle. Dimensions:200(l) × 57(max.w) × 76(max.d). Weight 283g.

A plastic clip-on hygiene screen is available for this microphone, which can be washed and reused, or thrown away.