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Schoeps CMBI Battery Powered Microphone Amplifier  From Schoeps

Component Microphone Amplifier

Schoeps Microphones

What We Think

All capsules are available in matched pairs with official Schoeps documentation. For matched pairs multiply the cost of the microphone exactly by two and then add $40 dollars for the matching fee! The amplifier bodies are available in sequentially serial numbered pairs at no additional charge. Any Schoeps product not found on our webpage can be purchased through Sound Pure. Please call and talk to one of our staff members to inquire about the price and availability!

Manufacturer's Description from Schoeps

  • Unbalanced, medium-impedance output
  • For use with short cables (a few meters)
  • For connection to any desired microphone input

If a recorder has no phantom powering or a microphone input is unbalanced as in many portable recorders and wireless microphone transmitters, a phantom-powered microphone can be awkward to use. For these and other situations SCHOEPS offers the CMBI, a battery-powered microphone amplifier with unbalanced output.

Combine this with one of 19 microphone capsules of the Colette Series and you obtain a microphone which is acoustically equivalent to the balanced version using a CMC microphone amplifier. The CMBI features a readily available internal 6 V silver oxide battery which, combined with power-saving circuitry, gives up to 80 hours of operation. About 6 hours before the end of battery life a built-in LED begins to light up as a warning. In addition to battery operation, the CMBI allows for external powering through a standard XLR microphone cable. (The included K 5 ISK cable is not suitable for this mode of operation.) Because of this model's unbalanced, low-level output and its medium output impedance, the total cable length should be kept to less than about 15 m to avoid possible RF interference and impaired performance. Possible arrangements for connecting the CMBI are shown in the technical appendix.

Accessories included: wooden case, battery, adapter cable K 5 ISK (miniature plug to 3.6 mm mini stereo phone plug, 5 m long)

Available separately: microphone capsules, windscreens, etc.

Schoeps Microphones

About Manufacturer

The focus on high quality, reliability and neutral accurate sound has been the production philosophy of Schoeps Microphones since 1948. The simple elegance and clever engineering of their products boast a true passion for the art of microphone making and a tireless attention to detail. The Colette System is the largest modular mic system available offering twenty different capsules and various active accessories. The newest addition to the acclaimed Colette System is the CMC 6 xt which offers extended frequency response beyond 40 kHz. The CCM Series mics are the smallest phantom powered non-electret microphones in the world. Other notables from Schoeps include the M222 Tube microphone, the VMS 5U portable two channel mic preamp and M/S matrix, three extremely unique stereo mics, the KFM-360 Surround microphone and the Polarflex Microphone System that allows the user to emulate the characteristics of any microphone. Schoeps is unquestionably among the most innovative microphone manufacturers in the world, leading the way in many developments. Central to its design philosophy over the years is the company's insistence on absolute sound neutrality of the microphones. It is really no wonder that Schoeps has so many supporters, not only in the area of classical music recording and reinforcement, but also in film and television. No doubt part of its success is due to the fact that, in a space of only 1500 square meters, a total of 35 employees develop, manufacture and distribute the whole range of Schoeps products. Staff turnover is very small, which says much about the family atmosphere in the company. Many an employee has celebrated his or her 25th anniversary with Schoeps. Continuity is and will remain very important at Schoeps. Despite many outside offers, Ulrich Schoeps intends to continue the life's work of his father.

Specifications

Sensitivity see corresponding capsule
Equivalent noise level see corresponding capsule
Switch setting “0 dB“:  
Maximum output voltage 0.7 V
Maximum sound pressure level at 0.5% THD RL > 10 kΩ: > 130 dB-SPL
Maximum sound pressure level at 0.5% THD RL= 1 kΩ: ca. 120 dB-SPL
Output impedance unbalanced, 500 Ω
Switch setting “-15 dB“:  
Maximum output voltage ca. 0.14 V
Maximum sound pressure level at 0.5% THD at least 130 dB-SPL
Output impedance unbalanced, 300 Ω
Switch on (0 dB) / off / on (-15 dB)
Battery powering 6 V silver oxide battery
Battery powering e.g. IEC 4 SR 44, maximum battery life: 80 h
External powering 7 – 13 VDC, 1.7 mA
Output socket 5-pin miniature
Diameter 20 mm
Length without capsule: 92 mm
Weight 72 g
Surface finish matte gray (g) or nickel (ni)