Earthworks P30/C-B Users Manual

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P30/C

Gooseneck

Cardioid Microphone

User’s Guide

Printed in USA

earthworksaudio.com

July 11, 2018

MADE IN USA

P30/C

Description

Earthworks P30/C is a directional pre-polarized con-

denser High Denition Microphone™ with a rst-order

cardioid pickup pattern directly coupled to a dedicated
wideband, low output impedance transformerless pre-

amplier. The P30/C requires a standard 24-48V Phan­tom Power supply. It features a frequency response from

20Hz to 30kHz, fast impulse response, very low handling
noise, uniform polar pattern, and high SPL handling ca­pabilities. It provides excellent uncolored rejection of
sounds arriving off-axis. Each microphone is delivered
with its own calibration chart providing the individually

measured frequency response curve. A mounting clip is

included with the microphone. The P30/C is protected
by US Patent No. 6,091,829.

Applications

Earthworks P30/C is easy to operate. Connect the mi-

crophone to a microphone preamplier supplying 24­48V phantom power using a standard XLR microphone

cable. Please allow up to one minute for the microphone
to settle. Plugging in the microphone “hot” (phantom
power already present at the input) will not damage the
microphone, and is actually preferred for faster settling.
It is normal for any phantom powered mic to “pop” when

plugged in or powered up. Make sure to mute the signal
to speakers or headphones when phantom power is rst

applied.

The excellent performance characteristics of the P30/C
give it a very wide range of application possibilities. With

its 5-inch exible neck and small microphone head, this
high-quality microphone could be placed where other

microphones could not, such as under the strings of an
acoustic bass. The P30/C is an ideal choice for record­ing or live sound applications using percussion, acoustic
or amplied instruments, or choir when using micro­phone stands. It is superior for choir because it doesn’t
spotlight; rather, it picks up an entire section with no hot
spots.

This microphone has no removable parts.

Care of Microphone

Earthworks P30/C microphone is a precision instrument
designed and built to provide years of excellent perfor­mance. Following these simple rules will help to protect
your investment in the P30/C:

Specications

Frequency Response: 20Hz to 30kHz

Polar Pattern: Cardioid

Sensitivity: 20mV/Pa (-34dBV/Pa)
Power Requirements: 24-48V Phantom, 10mA
Peak Acoustic Input: 145dB SPL
Output: XLR-3
Output Impedance: 65Ω, balanced between pins 2 & 3
Minimum Load: 600Ω between pins 2 & 3
Noise: 20dB, A equivalent

Dimensions L x D: 250 x 22 mm (10 x .860 in.)
Weight: 225g (.5lb)

Specications are subject to change without notice.

Pin 1
“Shield”

Pin 3
“-”

XLR Output Connector Assignment of P30/C

Frequency Response of P30/C (typical)

Pin 2
“+”

•

Avoid touching the front protective screen.

•

Never attempt to disassemble the microphone –
it cannot be opened.

Avoid extreme heat and condensing humidity.

•

Allow the microphone to warm up in the case
when bringing it in from the cold weather.

•

Rough handling may damage the microphone
even if no visible marks are left.

When not in use keep the P30/C in its case.

•

Impulse Response of P30/C (typical)

Polar Response of P30/C (typical)