New York, NY (October 17, 2017)—Austrian microphone manufacturer Lewitt Audio is showcasing its new flagship large-diaphragm cardioid condenser microphone, the LCT 540 SUBZERO, at the 143rd AES Convention, booth #740.
According to Lewitt Audio promotional materials, the LCT 540 SUBZERO features a notably low self-noise specification, increasing the dynamic range to 132 dB.
“At 2 kHz, where the threshold of human hearing is about 0 dB SPL, the selfnoise is below -7 dB SPL,” explains Lewitt Head of Product Management Moritz Lochner of the LCT 540 SUBZERO. “The acoustical selfnoise is 4 dB(A), the electrical selfnoise is -1 dB(A). The acoustic self-noise of 4 dB (A) is caused by random molecules bouncing against the diaphragm. But that’s a cumulative value; if you look at self-noise across the full frequency spectrum, you’ll see that the LCT 540 SUBZERO is all the way below the hearing threshold. It’s literally better than your ears. Describing something frequency-dependent in one single value is nowhere near detailed enough at this level of engineering. We even redesigned our self-noise measuring equipment especially for this microphone.”