Schoeps CMC 3U User Manual Download

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MK --

Microphone Capsules

CMC --

Microphone Amplifiers

User Guide

Colette
Modular System

Table of Contents

page

System Overview

CMC -- Microphone Amplifiers

Phantom Powering

Technical Specifications

Notes on Electromagnetic Compatibility

Block Diagram

MK -- Microphone Capsules

Capsule Selection

Attaching a Capsule

Basic Characteristics of Transducers

Suggested Capsules for Specific Applications 11
Pressure Transducers

Boundary Layer Microphones

Pressure Gradient Transducers

Specifications for Complete Microphones

Care and Maintenance

Possible Problems

Warranty

Summary of Contents for CMC 3U

Page 1: ...ications 7 Notes on Electromagnetic Compatibility 7 Block Diagram 8 MK Microphone Capsules 9 Capsule Selection 9 Attaching a Capsule 9 Basic Characteristics of Transducers 10 Suggested Capsules for Sp...

Page 2: ...uator swivel low cut filter microphone amplifiers 20 capsules in all RC KC Active Tube special version MK DZC GVC KC Active Cable CUT Signal balanced unbalanced TR 200 KCg Active Table Stand RC Active...

Page 3: ...ly as if it were a miniature micro phone Colette Active Cables are often used to help conceal microphones for film and video production while Colette Active Extension Tubes have become a mainstay of c...

Page 4: ...3 or 5 is the response at the very lowest audio frequencies The standard version of the CMC 6 has a 12 dB octave rolloff below 20 Hz as a protection against infrasonics while the standard version of...

Page 5: ...connector or adapter is defective or wired in a non standard way such that one modulation lead of the micro phone is shorted to ground at DC while the powering is on If a microphone is connected to su...

Page 6: ...ut RS R R C C see note in the text concerning tolerances with XLR 5 stereo microphones Fig 2 To add phantom powering to a balanced grounded transformerless input capa citors must be inserted into the...

Page 7: ...suggestions can help to reduce the likelihood of picking up noise 1 Keep both the microphone and the cable away from sources of interference such as monitors digital equipment computers RF emitters m...

Page 8: ...or pin 3 of the XLR input Given the permitted tolerances this voltage should be between 44 and 52 VDC for P48 and between 11 and 13 VDC for P12 Then measure the short circuit current between ground pi...

Page 9: ...specially true when miking instruments For voice try the MK 4S or MK 4VXS For instruments the omnidirectional MK 2 may be of interest no proximity effect low sen sitivity to popping or solid borne noi...

Page 10: ...ithout exception are single diaphragm electrostatic trans ducers They fall into two general categories pressure transducers and pressure gradient transducers Many of our capsules combine the two princ...

Page 11: ...5 D vocalist microphone CMH 64 cardioid Studio MK 4 MK 4V cardioids MK 22 Open Cardioid with pop filter PR 120 S PR 120 SV All instr incl percussion MK 4 cardioid to pick up room sound as well especia...

Page 12: ...spect to the sound source even though they are omnidirectional With the microphone amplifier CMC 6xt the frequency range of these capsules can be extended to 40 kHz 10 0dB 10 20 10 0dB 10 20 reverbera...

Page 13: ...dary layer capsules hemispheric directional pattern no coloration of off axis sound Suggested applications Music orchestra including pit orches tra on stage speech BLM 03C Round table discussions Note...

Page 14: ...mpromise between omni good low frequency response and cardioid consistent directional pattern at all frequencies Suggested applications MK 21 music orchestras spot micro phone vocals speech MK 21H whe...

Page 15: ...le for music and speech highly consistent polar response 0 axis is at the side of the capsule marked by a red dot Note Though not specifically designed for such use the MK 4V capsule can also be used...

Page 16: ...consistent polar response 0 axis is at the tip of the capsule Note Though not specifically designed for such use the MK 41V capsule can also be used on the RC Active Tube or the variable angle joint...

Page 17: ...out proximity effect or undue sensitivity to wind or solid borne sound slightly brighter than the MK 2H omni or MK 4 cardioid Intermediate switch positions are mechanically possible but are not reprod...

Page 18: ...kup ca 50 cm 20 MK 40 for close pickup ca 50 cm 20 high frequency emphasis for better speech intelligibility in reveberant venues e g churches MK 4VXS for extremely close pickup under 10 cm less than...

Page 19: ...K 41S supercardioid for close pickup under 50 cm considerable low frequency attenuation compensates for proximity effect suggested application speech in a loud environment Capsules 19 MK 4A for extrem...

Page 20: ...close pickup 3 mV Pa 29 dB 18 dB 76 dB 144 dB MK 4VXS cardioid close pickup 10 mV Pa 24 dB 14 dB 80 dB 134 dB MK 41S supercardioid 80 Hz 20 kHz 13 mV Pa 24 dB 15 dB 79 dB 132 dB Specifications for Com...

Page 21: ...y or dusty environments in order to avoid problems of the kind described above Possible Problems Wind Noise and Polar Pattern Noise problems may be a consideration when choosing a microphone pattern d...

Page 22: ...professional equipment is still designed primarily for use with dynamic micro phones or with earlier less sensitive condenser microphones If an input sensitivity control is available it should be set...

Page 23: ...sending your defective product for repair please contact your local dealer or dis tributor for instructions In exceptional cases you can by prior arrangement with SCHOEPS send the product directly to...

Page 24: ...e without notice Not responsible for errors or omissions 131203 Technik Schall SCHOEPS GmbH Spitalstrasse 20 D 76227 Karlsruhe Durlach Germany Tel 49 721 943 20 0 Fax 49 721 943 2050 www schoeps de ma...

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