Earthworks Audio P30/C
Cardioid Condenser Microphone
The P30/C is one of the two microphones in Earthworks’ Periscope™ series. It is essentially an SR30 Cardioid condenser, with the SR30’s tapered body replaced by a 4-inch gooseneck.
The adjustable neck allows the mic’s capsule to be easily positioned in tight or hard-to-reach spaces, such as under the strings of an acoustic bass.
The P30/C shares the SR30’s flat, extended frequency response (30Hz–30kHz at 6 inches) and the fast transient response that is the hallmark of Earthworks’ “High Definition” microphones.
The mic’s impedance conversion circuitry is transformerless, with relatively high current draw (10mA) and self-noise (22dBA) — although for close-miked applications, the self-noise is unlikely to be audible.
Like many of Earthworks’ mics, the P30/C is covered by Patent US6091829, which describes the use of a conical element behind the capsule to alter the capsule’s frequency response and, presumably, improve its Cardioid pattern control.
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Specifications
Pickup Patterns | Pads & Filters |
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Cardioid
(10 mV/Pa; 30 - 30,000 Hz) |
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Capsule Dimensions | Impedance | SPL/Noise |
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Capsule diameter: 9mm |
100 Ohms (Low) | Max SPL: 145 dB Self-noise: 22.0 dB(A) |
Weight | Length | Max Diameter | Interface(s) |
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n/a | 275mm (10.83'') | 22mm (0.87'') |
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Power Specifications |
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