Sanken Microphone Company, Ltd. CMS-2
Mid-Side Stereo Condenser Microphone
The CMS-2 is a mid-side stereo microphone designed for orchestral and ensemble recording applications.
It uses two condenser capsules, diameter unknown, with 1-micron titanium diaphragms. The use of titanium gives the microphone the ability to withstand high-humidity environments, and higher SPL handling abilities (145dB @ 1% THD).
The capsule design is named “push-pull,” about which more details are forthcoming. According to Sanken, the capsule design “gives [the mic] a 6dB higher sensitivity than similar sized conventional microphones.”
Nonetheless, the CMS-2’s sensitivity is relatively low at 2.8 mV/Pa, with self-noise rated at “below 16dBA.”
We assume the mic has two capsules, one of which faces forward, to capture the “mid” channel. The second capsule has a figure-8 pattern and is mounted at 90° to the first, to capture the “side” channel. The output of each capsule is provided separately, via XLR5M; the user would be required to decode the MS information into stereo L/R via outboard gear or a mixing console.
The CMS-2 ships with a hard mount (p/n H-21D) and a vinyl storage case.
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The mic was released in 1975.
Specifications
Pickup Patterns | Pads & Filters |
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Mid-Side Stereo
(2.8 mV/Pa; 20 - 18,000 Hz) |
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Capsule Dimensions | Impedance | SPL/Noise |
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Diameter n/a Diaphragm gauge: 1 microns |
250 Ohms (Low) | Max SPL: 145 dB Self-noise: 16.0 dB(A) |
Weight | Length | Max Diameter | Interface(s) |
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180g (6.35oz) | 173mm (6.81'') | n/a |
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Power Specifications |
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