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Lewitt LCT 550

The world's first microphone with 0dB-A self noise

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Our Price: $699.00

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Product Description
Additional Information
  • Product Description

    The Lewitt LCT 550 is the first and only large-diaphragm studio microphone ever to achieve 0 dB (A) self-noise*. That makes it possible to capture even extremely weak signals with great precision and detail.

    The Austrian-developed LCT 550 sets new standards in terms of more than just self-noise. A dynamic range of 140 dB (A) guarantees the best-possible results even in challenging settings. The three pre-attenuation levels (0 dB, -6 dB and -12 dB) increase maximum SPL to as high as 155 dB (A). The LCT 550 also offers a clipping history as well as an auto-attenuation mode that automatically switches to the next level of attenuation if the signal is too strong. For the elimination of structure-borne noise, there are two high-pass filters: 80Hz, 12dB/octave and 160Hz, 6dB/octave.

    Manufacturing tolerances have been minimized thanks to highly precise calibration of the capsule and the electronics – which means that any two microphones from this series, set identically, will always form a matched pair at +/- 0 dB!

    * 0dB-A electronics only, 3 dB (A) according to IEC 60268-1 due to Brownian motion (in simple terms: the sound caused by the movement of air molecules ...)


    • A perfect match – highly precise calibration of capsule and electronics means that any two microphones from this series will always form a matched pair at +/- 0 dB
    • Precise transient response thanks to the 3-micron-thin, gold-layered, low-mass, 1-inch Mylar diaphragm
    • Extraordinary sensitivity: capture even extremely weak signals with great precision and detail
    • Cardioid polar pattern for effective rear sound rejection
    • 0 dB (A) self-noise from electronics and circuitry*
    • 140 dB dynamic range Max. SPL of 155 dB (A)
    • Immune to electromagnetic interference thanks to transformerless preamplifier circuitry
    • Illuminated user interface for quick and easy handling in dark environments
    • Noiseless pushbuttons for attenuation and low-cut selection
    • Automatic Attenuation and Clipping History mode
    • Rugged zinc die-cast body Internal shock mount for maximum reduction of structure borne noise
    • Corrosion-resistant gold-plated 3-pin XLR output connector


    • Acoustical operating principle: pressure gradient transducer, externally polarized
    • Diaphragm: 3 micron gold sputtered Mylar
    • Transducer Ø: 25.4 mm / 1 inch
    • Polar pattern: cardioid
    • Frequency range: 20 to 20,000 Hz
    • Sensitivity: 36 mV / Pa (-29 dBV), +/- 0 dB @ 1 kHz
    • Signal / noise ratio: 91 dB (A)
    • Equivalent noise level: 0 dB (A) self-noise from electronics and circuitry
    • Dynamic range of FET mic. Amp.: 140 dB (A)
    • Max. SPL for 0,5 % THD: 143 dB, 0 dB pre-attenuation
    • Pre-attenuation pad: 6 dB, 12 dB, switchable
    • Low cut: 12 dB / octave at 80 Hz
    • Rated impedance: < 150 ohms
    • Rated load impedance: > 1.000 ohms
    • Supply voltage: 48 V +/- 4 V
    • Current consumption: 5.5 mA
    • Enclosure: Zinc die cast
    • Connector: gold plated 3-pin XLR
    • Dimensions: 158 x 52 x 36 mm / 6.22 x 2.04 x 1.42 inch
    • Net weight: 425 g / 14.9 oz
  • Additional Information

    Condition New
    Package Contents Includes DTP 40 Mts shock mount, LCT 40 Ws windshield and DTP 40 Lb artificial leather bag
    Length 6.22 in
    Diameter 2.04 in
    Unit Weight 0.93 lb
    Transducer Type Condenser
    Polar Pattern Cardioid
    Number of Microphones Single Microphone
    Phantom Required 1
    Impedance Rated: < 150 Ohms
    Frequency Range 20 Hz - 20 kHz
    input_pad -6 dB; -12 dB
    Sensitivity -29 dBV/Pa (36 mV)
    Max. SPL 143 dB; 149 with -6 dB pad; 155 dB with -12 dB pad
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