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Josephson Engineering

Josephson Engineering C617SET

Measurement/reference-grade omnidirectional condenser, high-voltage metal-diaphragm

Microphone

$2,925Manufacturer list price

Specifications

Type
Microphone
Description
Measurement/reference-grade omnidirectional condenser, high-voltage metal-diaphragm
Topology
condenser (small diaphragm)
Signal path
Analog
Channels
1
Channel format
mono, balanced
Form factor
End-address cylindrical machined body, black finish
Connection
XLR
DSP
false
Powered
true
Drivers
Sub-micron pure-nickel metal diaphragm, Microtech Gefell MK221 half-inch omni capsule, 200V high-voltage polarization; cascode FET front end + balanced bipolar class-A symmetrical output stage
Frequency response
10 Hz - 20 kHz ±1 dB (SET w/ MK221 capsule); 10 Hz - 80 kHz ±1 dB for C617 body alone
Max SPL
127 dB SPL (+7 dBV max output for <1% THD @ 1kΩ load)
Sensitivity
66 mV/Pa (-24 dB ref 1V/Pa)
Polar pattern
Omnidirectional
Impedance (Ω)
50
Country of manufacture
USA
Phantom power
48V

Details

I/O: 3-pin XLR balanced output (SET version, supplied with Microtech Gefell MK221 capsule); C617 body-only version accepts other 1/2-inch capsules

Notable use: Reference-standard omni for critical music recording and acoustic measurement; spot-miking and spaced-pair stereo where phase accuracy and absence of proximity effect are required

Notes: Second generation of Josephson's high-voltage metal-diaphragm omni; operates on standard P48 phantom but internally generates full 200V capsule polarization. SDC by capsule size (half-inch). Price: SoundPure listed retail $2,925 with a promotional price of $2,635 seen at time of research — used listed retail; flagged as a discountable street price, not confirmed direct-from-Josephson MSRP. Year of introduction not stated in sourced materials — left blank.

Where to buy

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