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  • Josephson C550H Measurement Mic
  • Josephson C550H Measurement Mic

Josephson C550H

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Product Description

Josephson Series Five microphones are rugged, stable and cost-effective alternatives
to high voltage metal diaphragm lab mics for speaker testing, room acoustics, and
general audio measurements between 20 Hz and 20 kHz. The 6mm condenser
capsule has a permanently polarized backplate and a 3.5µm polyester diaphragm,
metallized with a rugged nickel-chromium alloy. Frequency response is flat ±2 dB from
20 Hz to 20 kHz. Like all Josephson mics, the diaphragm is critically conditioned
during manufacture for minimum drift over time. Series Five mics have been in rugged
field service for more than twenty years, with little or no change in response. Several
versions are available for use with a variety of other equipment.

The C550H is a “half inch” model available in two sensitivity steps, each one
covering an operating range of about 100 dB. The C550H provides 10 mV/Pa output,
suitable for microphone level inputs.  Frequency response is flat for on-axis sound
incidence. All models may be powered with standard 24 to 48 volt phantom supplies, and
provide symmetrical active balanced output. They will also operate on phantom power
as low as 15 V with some reduction in maximum level.



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