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Schoeps CMBIg

Battery-powered microphone amplifier with unbalanced output

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Schoeps Mikrofone
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Our Price: $656.00

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Product Description
Additional Information
  • Product Description

    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 Schoeps 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 as well (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 on the following page.

    Instead of a large XLR connector, the CMBI has a flush-mounted 5-pin miniature connector at the output which also allows for external powering. For normal connection of the CMBI to a DAT recorder, etc., a 5 m cable with a 3.5 mm mini stereo plug is included. This cable can be extended with a standard 3.5 mm stereo jack to stereo plug cable, or with a miniature connector extension cable such as SCHOEPS KS 5 I.

    For operation with pocket transmitters, Schoeps has ready-made cables with special connectors on request.

    For stereo recordings, there is a Y-shaped cable (KIY 250/0 I) which connects two CMBI to a compact junction box by means of two pieces of cable, each 250 mm in length. The short cable leading out of this box has a miniature connector and can be extended either with the K 5 ISK cable or with the extension cable KS 5 I.


    • Unbalanced, medium-impedance output
    • For use with short cables (a few meters)
    • For connection to any desired microphone input without phantom power
  • Additional Information

    Condition New
    Length 92 mm
    Diameter 20 mm
    Unit Weight 72 g
    Transducer Type Condenser
    input_pad -15 dB
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  • View FileSchoeps CMBI Manual (11.82 MB)