LEWITT LCT 840 (opened)

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.

Features and Applications

Features

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 soundFive consistent directional characteristics – cardioid, omnidirectional, figure-8, broad cardioid and supercardioid – offer maximum flexibilitySuperior dynamic range of 130 dB-A (Tube) and extremely low self-noise of 9 dB-A for ear-catching realism and distortion-free sonic depth3-position switchable pre-attenuation pad (0 dB, 10 dB, and 20 dB) for handling extremely high sound pressure levels and 3-position high-pass filterIlluminated user interface and jog dials for easy handling even in dark environmentsNoiseless pushbuttons for quick and easy attenuation and HPF selectionUnique features like clipping history and automatic attenuation provide error-free studio recording and unparalleled ease of useSolid die-cast metal body with a stylish, oversized tube inspection window specially coated for maximum protection against electromagnetic interferenceCustom PSU 840 power supply unit with sturdy full-metal housing and brushed, anodized black aluminum frontExtra-large hexagonal ruthenium-galvanized steel mesh grille provides an open acoustic environment and prevents unwanted internal reflectionsCorrosion-resistant gold-plated 3-pin XLR output connectorComes 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

Top applications

Lead and background vocals Acoustic instruments // piano, guitar, drums, percussion, strings... Wind instruments // brass and woodwinds... Demanding studio applications

Tech Data

Acoustical operating principle pressure gradient transducer,

externally polarized

Transducer O 25,4 mm

1 inch

Directional pattern omni

broad-cardioid

cardioid

super-cardioid

figure-8

selectable on remote control

Frequency range 20 ... 20.000 Hz

Sensitivity 23 mV / Pa (-33 dBV), cardioid

20 mV / Pa (-34 dBV), omni

23 mV / Pa (-33 dBV), figure-8

Signal / noise ratio 85 dB-A

Equivalent noise level (IEC 61672-1) 9 dB-A, cardioid

10 dB-A, omni (IEC 61672-1)

9 dB-A, figure-8 (IEC 61672-1)

Dynamic range of mic. Amp. 130 dB-A

Max. SPL for 0,5 % THD 139 dB, 0 dB Pre-attenuation

149 dB, 10 dB Pre-attenuation

159 dB, 20 dB Pre-attenuation

Pre-attenuation pad 10 dB

20 dB

selectable on remote control

Bass cut filter slope 12 dB / octave at 40 Hz

6 dB / octave at 300 Hz

Rated impedance < 200 ohms

Rated load impedance > 1.000 ohms

Supply voltage custom power supply unit

230 V, 50 Hz

110 V, 60 Hz

Current consumption 170 mA

Connector gold plated 11-pin XLR

Cable 8 m (26 ft)

11-pin audio cable

oxygen-free copper

Dimensions (Mic) 192 x 60 x 46 mm

7,5 x 2,4 x 1,8 inch

Dimensions (PSU) 250 x 150 x 70 mm

9,8 x 5,9 x 2,8 inch

Net weight (Mic) 662 g

23,3 oz

Net weight (PSU) 1894 g

66,8 oz