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Lewitt LCT 840 Dual Diaphragm Tube Microphone

Product Code: 456020

LEWITT’s LCT 840 is a premium-class externally polarized dual-diaphragm tube microphone designed to excel in a variety of demanding applications.

£899.03 (INC VAT)
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LEWITT’s LCT 840 is a premium-class externally polarized dual-diaphragm tube microphone designed to excel in a variety of demanding applications. Equipped with a precision-engineered 1-inch capsule, the LCT 840 stands for exceptionally warm and classic, solid vintage sound. Perfectly suited for miking vocals and instruments, this rugged multi-purpose microphone allows for highly nuanced and authentic sound reproduction in the studio and even on stage. Five switchable polar patterns – omni-directional, cardioid, figure-8, wide-cardioid and super-cardioid – make the LCT 840 a highly versatile tool for professional audio engineers and performers looking for true and authentic tube sound.

Like all LEWITT mics, the LCT 840 stands out for its extremely low self-noise of 9 dB and effective rejection of off-axis sounds. The microphone features three levels of attenuation and three switchable high-pass filters, LEDs and pushbuttons for noiseless handling on the power supply unit (PSU).

Apart from user-friendly operating controls and advanced technological features so essential to memorable recordings, the LCT 840 also makes an eye-catching design statement: The microphone is equipped with a plexiglass inspection window on the front side of the body, so the illuminated tube itself is fully exposed. The inside window surface is coated with a highly conductive, yet transparent film preventing electromagnetic interference.

In short: The unique combination of innovative design, high-end technology and tube-typical sound quality ensures magic takes.


  • Ultra-thin 1-inch externally biased, gold-layered low-mass diaphragms combined with a dual triode tube ensures accurate transient response while providing smooth, warm and airy tube sound
  • Five consistent directional characteristics – cardioid, omnidirectional, figure-8, broad cardioid and supercardioid – offer maximum flexibility
  • Superior dynamic range of 130 dB-A (Tube) and extremely low self-noise of 9 dB-A for ear-catching realism and distortion-free sonic depth
  • 3-position switchable pre-attenuation pad (0 dB, 10 dB, and 20 dB) for handling extremely high sound pressure levels and 3-position high-pass filter
  • Illuminated user interface and jog dials for easy handling even in dark environments
  • Noiseless pushbuttons for quick and easy attenuation and HPF selection
  • Unique features like clipping history and automatic attenuation provide error-free studio recording and unparalleled ease of use
  • Solid die-cast metal body with a stylish, oversized tube inspection window specially coated for maximum protection against electromagnetic interference
  • Custom PSU 840 power supply unit with sturdy full-metal housing and brushed, anodized black aluminum front
  • Extra-large hexagonal ruthenium-galvanized steel mesh grille provides an open acoustic environment and prevents unwanted internal reflections
  • Corrosion-resistant gold-plated 3-pin XLR output connector
  • Comes in a black case; includes PSU 840 power supply unit, LCT 40 SHxx shock mount, LCT 40 Tr audio cable with gold-plated 11-pin XLR connectors and LCT 40 Wxx windscreen
Microphone Capsule: 25,4 mm
Microphone Response: 20 ... 20.000 Hz
Microphone Impedance: < 200 ohms
Microphone Maximum SPL: 159 dB
Microphone Dynamic Range: 130 dB-A
Microphone Signal-to-Noise: 85 dB-A
Microphone Sensitivity: 23 mV / Pa
Microphone Self Noise: 9 dB-A
Microphone Connector: gold plated 11-pin XLR
Microphone Powering: 230 V, 50 Hz
Physical Height: 192 x 60 x 46 mm
Physical Weight: 662 g
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