User manual AKG C 319B

[. . . ] An overview of the complete system is shown at the end of this instruction booklet. The following main features are provided: · Robust mechanical construction low self-noise low power consumption high operating reliability low impedance capsule connections will operate up to 60° C and over 95 % relative humidity built-in attenuation switch with 0 and ­ 10 dB position (see fig. 1) extended long-life stability transformerless output stage to be powered from any standard phantom powering source (acc. [. . . ] The capsule modules may be taken off from the powering module with a left-hand twist. The offered modules and the accessories of the system provide the user with the flexibility to work in a wide range of application areas. A) Selection of capsule modules to adjust to different acoustical situations: CK 91 ­ Cardioid Microphone Capsule A classic cardioid capsule suitable for all general purposes where a uniform front-to-back ratio is required. CK 92 ­ Omnidirectional Microphone Capsule This capsule is very suitable for chorus and soloist work in sound and tv studios. Reporters may also benefit from the inherent lack of proximity effect. The resulting higher directivity offers the advantage of better separation in multichannel recording work or improved gain before feedback in sound reinforcement situations. CK 94 ­ Figure-eight Microphone Capsule This capsule provides for high rejection of sound from the side (±90° off-axis) and is consequently well suited for interviews and dramas. In connection with a second microphone with cardioid, hypercardioid, or omni-directional response, an M/S combination can be easily formed and used. CK 97-O ­ Miniature Omni-directional Capsule A versatile miniature microphone of small dimensions with omnidirectional response. The capsule may be used generally for voice applications, but may also be used to record music instruments. CK 97-C ­ Miniature Cardioid Microphone Capsule This miniature microphone may be used wherever a microphone should not be seen in the recording scene. It will also provide for additional gain before feedback in sound reinforcement situations. CK 98 ­ Short Shotgun Microphone Capsule This capsule presents a good compromise between required length of the tube and the resulting directivity. The result will justify the operation of this microphone capsule in quite different application areas such as film, tv, stage, and video work. It will also work well where high acoustical separation between different instruments is required without having to erect acoustical dividers. B) Using the cable set MK 90/3 + H 98 This accessory enables the sound engineer in film, tv, and theatre work to use the relatively small microphone capsules remotely from the substantially larger powering/output module via a highly flexible cable connection. [. . . ] The foam windscreen should be occasionally soaked in a non-aggressive detergent/water solution and will be ready for use after drying. Electrical working principle: condenser microphone, selfpolarized Acoustical working principle: pressure gradient receiver Frequency range: 20­20, 000 Hz ±2 dB from nominal frequency curve Open-circuit sensitivity (at 1000 Hz): 10 mV/Pa ­40 dBV re. 1 V/Pa Electrical impedance: 200 ohms Recommended load impedance: 1000 ohms Weighted sound pressure level acc. [. . . ]