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Schoeps CMC 6xt U Mic Preamp

Schoeps CMC 6 Uxt Microphone Preamp with phantom power

Schoeps CMC 6 xtU Microphone Preamplifier extends the frequency response beyond 40 kHz

Schoeps CMC 6 xtU Mic Preamp

This version is indicated by the letters ”xt” engraved on the microphone's output socket. It extends the frequency response of the axially addressed Colette capsules beyond 40 kHz. On the pages of these capsules, the frequency response curves are shown with both, the standard CMC 6 amplifier and the CMC 6xt.

Features

  • 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

The capsules of condenser microphones (the only type which we manufacture) 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 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 amplifier offers a symmetrical, transformerless, direct-coupled Class A output stage with low impedance, low distortion, and high freedom from interference.

Please note:

The two amplifiers in a stereo pair of microphones should be of the same type.

On request, we can select ”matched pairs” of capsules with equal sensitivity and frequency response for critical applications, at slight additional cost.

Schoeps CMC 6 xtU Specifications

Current consumption with 12 V
CMC 6, CMC 6 xt
Powering voltage 12 / 48 V
8 mA
Current consumption with 48 V 4 mA
Impedance (at 12 V) 25 Ω
Impedance (at 48 V) 35 Ω
Low-cut frequency 20 Hz
Maximum output voltage 1 V
Minimum recommended load impedance 600 Ω
Length 116 mm
Diameter 20 mm
Weight 60 g
Surface finish matte gray (g) or nickel (ni)
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