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Milford, NH – January 2010… Earthworks, Inc., a leading manufacturer of High Definition Microphones™ for recording, live sound, and test/measurement applications, proudly introduces the SR40, 40kHz High Definition Microphone. Offering a wealth of features—most notably an extended high frequency response, extremely fast impulse response, short diaphragm settling time, near-perfect cardioid polar pattern, and high rejection of sounds from the rear of the microphone—the new SR40 makes an exceptional choice for a myriad of miking applications from drum overheads to miking a guitar cabinet, or as a solo microphone.

Earthworks’ new SR40 offers a 30Hz – 40kHz frequency response. Considering that very few microphones offer a frequency response above 20kHz, audio professionals will quickly notice subtleties in the sound that are simply non-existent from microphones with less high frequency range. Suddenly, high frequency overtones spring to life—enabling, for example, an acoustic guitarist’s performance to exhibit greater depth and realism. Equally significant, the SR40 offers an extremely fast impulse response that enables the microphone to acquire fast transients far more accurately. The exceptionally short diaphragm setting time allows the SR40 to reveal subtle low level nuances in sound that other microphones mask.

The SR40’s near-perfect cardioid polar pattern ensures that the microphone will not beam or spotlight and provides significantly more gain before feedback than conventional microphones. This near-perfect polar response also enables vocalists or instruments at the sides of the microphone (at 45- or 90-degrees) to have the same pristine sound quality as those at the front of the microphone. This near-perfect polar response also facilitates the use of fewer microphones with closer placement to the source, enabling yet additional gain before feedback in live sound applications.

The SR40’s high SPL handling and rear rejection are additional noteworthy attributes. With an acoustic input rating of 145dB SPL, the new SR40 is a first-rate performer when it comes to capturing loud sound sources. Be it a guitar cabinet or a close miked trumpet or saxophone, the SR40 is ideally suited to handle challenging instruments. Similarly, the exceptional rear rejection performance enables the SR40 to easier isolate instruments in a recording or live performance setting, thus minimizing acoustic ‘bleed’.

The SR40 comes in a black finish, requires 48-volt phantom power and has an optional screw-on windscreen. The Earthworks SR40 is a robust microphone with the ability to handle a diverse range of recording and sound reinforcement tasks. The new Earthworks SR40, 40kHz High Definition Microphone carries a MSRP of $1,295 and is also available in matched pairs at $2,690 MSRP. Both SR40 singles or matched pairs are currently available at authorized Earthworks dealers.

About Earthworks, Inc.

Earthworks is a New Hampshire, U.S.A. based manufacturer of High Definition Microphones that is dedicated to quality and sonic excellence. Each Earthworks product is handmade with great care, meticulous attention to detail, and a strong emphasis on quality. Earthworks prides itself in making only the very best in professional audio equipment intended for mission critical sound applications. For additional information, visit the company online at or call (800) 654-6427, ext 14.