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BidirectionalCascade Microphones C77

Bidirectional Ribbon Microphone

The C77 is a passive, symmetrical ribbon microphone employing the “medium ribbon/long path” architecture described in Michael Joly’s ribbon motor design analysis.

The ribbon measures 45mm in length and is made of 2.5 micron, 99% pure aluminum. The ribbon tuning is checked and adjusted by the staff at Cascade.

The mic is part of Cascade’s “premium” series; its visually stunning case is finished in polished nickel. The C77 is upgraded at the Cascade plant to include a Switchcraft XLR connector and a Lundahl LL2913 transformer.

Although the C77 no doubt incorporates some Chinese-made parts (most likely including the ribbon motor), the mics are assembled by hand in the US.

At the 2008 AES show, Cascade CEO Michael Chirac noted that the C77 case has enough room to accommodate active electronics or even a tube circuit, suggesting that such products are in the Cascade pipeline.

The Cascade Microphones C77 is also known as: C-77.

The mic was released in 2008.


Frequency Response - BidirectionalClick Graph to Compare!
C77 Bidirectional Frequency Response Chart
Pickup Patterns Pads & Filters
Bidirectional (1.6 mV/Pa; 30 - 18,000 Hz)
Ribbon Construction Impedance SPL/Noise
99% Pure aluminum, 2.5 micron, 1 3/4'' x 3/16'' 200 Ohms (Low) Max SPL: 145 dB
Weight Length Max Diameter Interface(s)
n/a 165mm (6.50'') 76mm (2.99'')
  • 3-pin XLR male (1)
Power Specifications

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