Record details of your voice and instruments that usually wouldn’t even be audible. Make every detail count.  With its cutting-edge circuit and capsule design, the LCT 540 SUBZERO  features an impressive dynamic range of 132 dB to capture everything from loud to subtle. You won’t hear the self-noise of the mic even after heavily compressing the signal. Material recorded with the LCT 540 SUBZERO is fit for extreme processing. Our hearing threshold is very frequency-dependent. It is less sensitive towards low and very high frequencies and most sensitive around 2 – 5 kHz. With our specific and unique approach towards circuit and capsule design, we were able to realize self-noise that'll stay below the threshold of hearing across the entire frequency spectrum. Features 1 true condenser studio microphone Self-noise below the threshold of human hearing  Ideal for extreme processing Low-cut filters and attenuation Cardioid polar pattern Specifications Acoustical operating principle: Pressure gradient transducer, externally polarized Diaphragm: 3 micron gold sputtered Mylar Transducer Ø: 25.4 mm, 1 in Polar pattern: Cardioid Sensitivity: 41 mV/Pa, -28 dBV/Pa Equivalent noise level: 4 dB (A) Max. SPL for 0.5 % THD: 136 dBSPL, 0 dB pre-attenuation Signal / noise ratio: 90 dB (A) Dynamic range: 132 dB (A) Pre-attenuation pad: 0 dB -6 dB -12 dB Low-cut filter: linear 80 Hz (6 dB/oct) 160 Hz (6 dB/oct) Internal impedance: 68 O Supply voltage: 48 V ± 4 V Current consumption: 3.6 mA Mic enclosure: Zinc die cast Connector: Gold plated 3-pin XLR Microphone dimensions: 158 x 52 x 36 mm, 6.22 x 2.04 x 1.42 in Microphone net weight: 371 g, 13.1 oz Watch: LEWITT LCT 540 S - Studio microphone for ultra-resolution recordings