Earthworks C30/C-B

Earthworks C30/C-B

Earthworks C30/C-B

Earthworks C30/C-B

Hanging Gooseneck Install Microphone - Cardioid - 20Hz to 30kHz in black

MAP: $599.00


The Earthworks C30 ChoirMic™ is a hanging gooseneck condenser microphone with 30’ (9m) cable designed for installation in churches and other venues.The C30 features a small microphone head attached to a flexible mini gooseneck, which allows quick and precise positioning of the microphone. The 30’ (9m) attached Canare® Star Quad cable resists twisting due to temperature and humidity changes, so you can rest assured that the microphone will stay put once it has been properly aimed. Measuring just .86 inches (22mm)  in diameter at its largest point, the C30 practically disappears from view when installed, providing a low profile miking solution.

Choir microphones have always presented a unique design and installation challenge – the traditional solution is to use an angle guide on the microphone’s lead to aim towards the performance venue. The problem with this approach is that either a very small microphone had to be used to keep aimable weight within practical limits or locate the microphone’s electronics at some considerable distance from the element inviting losses and noise.The C30 ChoirMic™ is the ultimate problem solver for miking choirs and other venues with high ceilings.With its wide pickup pattern at all frequencies, you can easily cover large groups with just a few microphones. The C30 will reproduce the sound of the choir with incredible articulation and no spotlighting, so no one voice outshines the rest. Instead, the choir will sound like a unified voice. With over 30dB of rear rejection, the C30 has more gain before feedback while picking up almost no sound from the rear of the microphone.

The C30 includes a 30′ (9m) unterminated cable. The  accessory is available for purchase to terminate with an XLR. Standard cable length is 30′ (9m), but can be customized when ordering using accessory. Available in black or white. Available in cardioid or hypercardioid.


  • 30kHz flat frequency response

  • No spotlighting

  • Uniform frequency response on or off axis

  • More gain before feedback

  • Picks up almost no sound from the rear of the microphone

  • Electronics housed in microphone

  • Prevents RFI

  • Mini-gooseneck allows quick and easy positioning

  • Comes with 30 foot balanced, twisted pair Canare cable

  • Available in black and white

  • Custom cable lengths available

  • Does not come with XLR (order accessory C30-XLR for installed male XLR)


C30/C Frequency Response

 50Hz to 30kHz ±2dB at 12 inches (30cm)

Polar Pattern

 Cardioid or Hypercardioid

C30/C Sensitivity

 10mV/Pa (-40dBV/Pa)

Power Requirements

 24 – 48V Phantom, 10mA

C30/C Max Acoustic Input

 145dB SPL


 XLR (pin 2+)

Output Impedance

 65Ω balanced (between pins 2 & 3)

Min Output Load

 600Ω between pins 2 & 3


 16dB SPL equivalent (A weighted)

Dimensions L x D

 324mm x 22mm (12.75 x .860 inches)

Attached Cable

 30 feet (9.14m) Canare Star Quad


 .22 lb. (100g) microphone only; 1.2 lb (544.3g) microphone with 30′ cable