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Vintage Inspired
Built upon the shoulders of giant RCA mics, each JRS-34 ribbon is cut, corrugated and installed by hand.
Modern Electronics
Custom CineMag transformers, a patented round magnet, and Cloudlifter JFET technology expand the JRS-34's performance for today's applications.
Made in the USA
Shipped in a custom wood case
with a two year ribbon warranty and a limited lifetime
warranty on all other parts.
Active Output
The active JRS-34 requires phantom power and has an output level compatible with virtually any modern preamp.

Figure 8 polar pattern w/ -35db null at 90°

Patented Rounded Magnet technology

Phantom Powered “Cloudlifter” Class A, Discrete Circuity

Ribbon dimensions: .19" wide, 2.35" long, 1.8 microns thick

New mount offers 180 degree range of motion

Internally shock mounted

Handmade entirely in the USA

Dimensions: 7.75” x 3” x 1.75”

Weight: 1.03lbs

Frequency Response: 20 HZ – > 20kHz

Output Sensitivity: -27 dBv/Pa

Max SPL: 138 dB > 1kHz

Out Impedance (in Ohms): 150 ohms

Recommended Load (in Ohms): 1kohm or greater

Supplied Accessories: Wood Case, Mic cover

Optional Accessories: Cloud U1 Shockmount

Patents:  8,433,090;  9,167,327;  9,888,315;  

10,356,507;  10,721,552;  D605,637

*RCA is a registered trademark of Radio Corporation of America. References to RCA are historical in nature and imply no affiliation with Cloud Microphones.

Raise Your Voice



The Cloud JRS-34 combines the best attributes of vintage & modern ribbon

microphone technologies.

Designed in collaboration with Stephen Sank, the prefix JRS pays homage to the late Jon R. Sank, who was known for his work with RCA that produced legendary microphones.


Ribbon Microphones: The Complete Guide for Recording Engineers
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Pair of Cloud JRS-34 mics recording classical guitar
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Cloud Microphones JRS 34 Ribbon Microphone Review with Samples
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