Lewitt LCT 550
Large-Diapragm Condenser Microphone w/0 dB Self-Noise

OUR PART #  AMS-LCT-550


Lewitt's 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 ...)

Ideal applications:
Classical instruments and ensembles
Ambitious stereo recording techniques (XY, ORTF, AB, etc.)
Vocals & background vocals
Acoustic instruments (strings, guitars, piano)
Overhead miking (drums & percussion)

Lewitt LCT 550 Features:

  • Highly precise calibration of capsule and electronics- any two microphones from this series will always form a matched pair at+/- 0 dB
  • Precise transient response thanks to the3-micron-thin, gold-layered, low-mass, 1-inch Mylar diaphragm
  • Extraordinary sensitive: capture even extremely weaksignals with great precision and detail
  • Cardioid polar pattern for effective rear soundrejection
  • 0 dB (A) self-noise from electronics and circuitry *
  • 140 dB dynamic range Max. SPL of 155 dB (A)
  • Immune to electromagnetic interference thanks totransformerless preamplifier circuitry
  • Illuminated user interface for quick and easyhandling in dark environments
  • Noiseless pushbuttons for attenuation and low-cutselection
  • Automatic Attenuation and Clipping History mode
  • Rugged zinc die-cast body
  • Internal shock mount for maximum reduction ofstructure borne noise
  • Corrosion-resistant gold-plated 3-pin XLR output connector

Lewitt LCT 550 Specifications:

  • Acoustical operating principle: pressure gradienttransducer, externally polarized
  • Diaphragm: 3 micron gold sputtered Mylar
  • Transducer Ø: 25.4 mm / 1 inch
  • Polar pattern: cardioid
  • Frequency range: 20 Hz to 20 kHz
  • Sensitivity: 36 mV / Pa (-29 dBV), +/- 0 dB @ 1 kHz
  • Signal / noise ratio: 91 dB (A)
  • Equivalent noise level: 0 dB (A) self-noise fromelectronics 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 1.42inch)
  • Net weight: 425 g (14.9 oz.)

Lewitt LCT 550
Large-Diapragm Condenser Microphone w/0 dB Self-Noise

OUR PART #  AMS-LCT-550

Product Information:

Lewitt's 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 ...)

Ideal applications:
Classical instruments and ensembles
Ambitious stereo recording techniques (XY, ORTF, AB, etc.)
Vocals & background vocals
Acoustic instruments (strings, guitars, piano)
Overhead miking (drums & percussion)

Lewitt LCT 550 Features:

  • Highly precise calibration of capsule and electronics- any two microphones from this series will always form a matched pair at+/- 0 dB
  • Precise transient response thanks to the3-micron-thin, gold-layered, low-mass, 1-inch Mylar diaphragm
  • Extraordinary sensitive: capture even extremely weaksignals with great precision and detail
  • Cardioid polar pattern for effective rear soundrejection
  • 0 dB (A) self-noise from electronics and circuitry *
  • 140 dB dynamic range Max. SPL of 155 dB (A)
  • Immune to electromagnetic interference thanks totransformerless preamplifier circuitry
  • Illuminated user interface for quick and easyhandling in dark environments
  • Noiseless pushbuttons for attenuation and low-cutselection
  • Automatic Attenuation and Clipping History mode
  • Rugged zinc die-cast body
  • Internal shock mount for maximum reduction ofstructure borne noise
  • Corrosion-resistant gold-plated 3-pin XLR output connector

Lewitt LCT 550 Specifications:

  • Acoustical operating principle: pressure gradienttransducer, externally polarized
  • Diaphragm: 3 micron gold sputtered Mylar
  • Transducer Ø: 25.4 mm / 1 inch
  • Polar pattern: cardioid
  • Frequency range: 20 Hz to 20 kHz
  • Sensitivity: 36 mV / Pa (-29 dBV), +/- 0 dB @ 1 kHz
  • Signal / noise ratio: 91 dB (A)
  • Equivalent noise level: 0 dB (A) self-noise fromelectronics 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 1.42inch)
  • Net weight: 425 g (14.9 oz.)
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