Schoeps CMC621G Wide Cardioid Microphone Kit, Includes CMC 6U Amplifier, MK 21 Wide Cardioid Capsule, SG 20 Stand Clamp, B 5 Popscreen, Matte Gray

Amplifier
The capsules of condenser microphones (the only type which SCHOEPS manufactures) can't be connected directly to microphone cables or inputs; a microphone amplifier is required in between. Thus a complete microphone of the Colette series comprises any of the twenty available types of capsules combined with an amplifier. The CMC 6 Ug is designed for standard 48- and 12-Volt phantom powering. Its circuitry recognizes the supply voltage and adjusts itself automatically. Its performance characteristics remain essentially the same either way; mainly, the difference is that the current drawn at 12 Volts is greater than at 48 Volts. However, the 12-Volt mode consumes less power and might be preferred for battery-powered recording.

The microphone amplifier provides the electrostatic charge which the capsule requires in order to produce a signal. Since only a miniscule amount of current is contained in this signal, amplification of the current is required. To avoid interference to the signal on the way from the microphone to the input of the mixer or preamp, the signal is conveyed at low impedance and in balanced form. The CMC 6 Ug amplifier offers a symmetrical, transformerless, direct-coupled Class A output stage with low impedance, low distortion and high freedom from interference.

• Flat frequency response
• Extremely low noise and distortion
• Balanced, very low-impedance output
• Can be used with very long cables
• Well-protected against RFI
• For use with 12- or 48-Volt phantom powering

Microphone capsule
This type of capsule has a directional pattern between omni and cardioid. The basic idea in designing this capsule was to combine the advantages of the cardioid with those of the omni. This results in a pickup pattern which blends the two sets of characteristics. It has fuller and more extended low-frequency response than a cardioid, with less proximity effect, while picking up more room sound than a cardioid. The polar diagram shows the directivity of the MK 21 to be only slightly dependent on frequency. This contrasts with omnidirectional capsules, whose directivity increases with rising frequency and with cardioids (at least smaller ones), which tend to accentuate high frequencies that arrive at oblique angles.
• Wide cardioid
• Especially consistent directionality throughout its frequency range
• Pleasant sonic impression, often described as "warm"
• Often preferred for use as a spot microphone or as the main pair for overall stereo pickup

Stand Clamp
The base of the SG 20 has a 5/8"-27 NS internal thread. A threaded adapter is supplied for 3/8" and 1/2" mounting. The angle can be varied continuously in the vertical plane.
• For a microphone of 20 or 21 mm diameter (e.g. CMC, CMD, CMIT or CMBI)
• Stable metal housing
• Robust and non-scratching plastic clamp

B 5 popscreen
Acoustic foam close-speech popscreen; provides sufficient protection at normal speaking distances for cardioids and other directional capsules, especially when speech capsules are used. With omnidirectional capsules it may even be used outdoors in light wind. Minimal effect on sound quality.
• For moderate distances from the person speaking
• Can also be used as a windscreen for pressure transducers
• Negligible effect on sound quality