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User Manual for Lewitt LCT 840 Reference Class Tube Microphone Click to enlarge the picture
Contents of the user manual for the Lewitt LCT 840 Reference Class Tube
- Product category: Tube Microphones Lewitt
- Brand: Lewitt
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Lewitt Tube Microphones
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User manual for the Lewitt LCT 840 Reference Class Tube contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Lewitt product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Lewitt user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Lewitt product will considerably shorten its lifespan!
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Product description The LCT 840 Reference Class Tube Microphone from Lewitt is a premium class externally polarized microphone for vocals and miking instruments in the studio or on stage. Equipped with a precision-engineered 1.0" capsule, the LCT 840 delivers a classic vintage sound. This multi-purpose microphone offers versatility, letting you choose between five different polar patterns - cardioid, omnidirectional, figure 8, wide cardioid, and supercardioid. This unit has a low self-noise of 9 dB and rejection of off-axis sounds. The microphone's PSU power supply unit offers three levels of attenuation and three switchable high-pass filters, indicators and push buttons for noiseless handling. The microphone and the PSU unit are connected via an included 26' 11-pin XLR cable.
The LCT 840 is equipped with a plexiglass inspection window on the front of the body that fully exposes the illuminated tube. The inside window surface is coated with a highly conductive, yet transparent film preventing electromagnetic interference. - 1.0" 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 offer flexibility - cardioid, omnidirectional, figure 8, broad cardioid, and supercardioid
- Dynamic range of 130 dB-A (Tube) and low self-noise of 9 dB-A for realism and distortion-free sonic depth
- 3-position switchable pre-attenuation pad (0, 10, and 20 dB) for handling high sound pressure levels and 3-position high-pass filter
- Illuminated user interface and jog dials for easy handling even in dark environments
- Noiseless push buttons for quick and easy attenuation and HPF selection
- Unique features like clipping history and automatic attenuation provide error-free studio recording and ease of use
- Solid die-cast metal body with an oversized tube inspection window specially coated for maximum protection against electromagnetic interference
- Extra-large hexagonal ruthenium-galvanized steel mesh grille provides an open acoustic environment and prevents unwanted internal reflections
- Corrosion-resistant gold-plated 11-pin XLR output connector
UPC: 847986000064 In the Box Lewitt LCT 840 Reference Class Tube Microphone Black Carrying Case PSU 840 Power Supply Unit LCT 40 SHxx Shock Mount LCT 40 Tr 11-Pin Gold-Plated XLR Audio Cable (26') LCT 40 Wxx Windscreen Limited 2-Year Warranty Table of Contents
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Technical parametersLewitt LCT 840 Specs | | | Operating Principle | Pressure Gradient | | Diaphragm | 1.0" / 25.40 mm | | Tube | Yes | | Polar Pattern | Cardioid, Figure-8, Omnidirectional, Supercardioid, Wide-Angle Cardioid | | Pattern Selection | Switched | | Frequency Range | 20 Hz to 20 kHz | | Signal to Noise Ratio | 85 dB A-Weighted | | Equivalent Noise Level | Cardioid: 9 dB A-Weighted
Omnidirectional: 10 dB A-Weighted
Figure 8: 9 dB A-Weighted | | Maximum SPL | 139 dB SPL | | Pad | -10 dB
-20 dB | | THD | 0.5% | | Impedance | 200 Ohms | | Load Impedance | 1000 Ohms | | Sensitivity | Cardioid: -33 dBV/Pa
Omnidirectional: -34 dBV/Pa
Figure 8: -33 dBV/Pa | | Low-Cut Filter | 12 dB/Octave @ 40 Hz
6 dB/Octave @ 300 Hz | | Dynamic Range | 130 dB A-Weighted | | | | Output Connectors | 1 x 11-Pin XLR | | Operating Current Consumption | 170 mA | | Length | 7.56" / 192 mm | | Diameter | 2.36" / 60 mm | | Weight | 1.46 lb / 662 g | | | | Package Weight | 17.5 lb | | Box Dimensions (LxWxH) | 16.7 x 14.2 x 5.9" |
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