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LCT 640 Introduction Thank you that you have opted for a LEWITT product. In this operating manual you will learn more about your LEWITT microphone, its handling and its proper usage. With the LCT Authentica Series, LEWITT introduces a new generation of highly versatile wired condenser microphones that all aim for setting new benchmarks of technology, sound quality and user-friendliness in both professional studio recording and onstage use.
LCT 640 The product LEWITT’s LCT 640 is designed to raise the bar in its class of reference-quality large-diaphragm condenser microphones. This Austrian-designed and engineered pro-mic delivers a smooth, unsurpassably rich and exceptionally nuanced sound, and exhibits a remarkable set of qualities that enthuses even the most discerning users.
LCT 640 Features / Top applications Features Top applications ·Superior transient response from ultra-thin externally biased, gold-layered low-mass diaphragms for ear-catching realism and authentic sound ·Flat frequency response for natural, authentic sound ·Five consistent directional characteristics – cardioid, omnidirectional, figure-8, broad cardioid and supercardioid – for maximum flexibility in a wide variety of recording applications ·10 dB self-noise and max SPL of 145 dB for an impressive total
LCT 640 Using the mic User-interface ① Status indicator ② Polar pattern indications ③ Noiseless polar pattern push button ④ Attenuation indications Status indicator ① ·The microphone is in normal working mode if the status indicator is illuminated in white. ·The microphone is in key-lock mode if the status indicator is not illuminated. ·The microphone experiences clipping due to high SPL if the status indicator flashes in red.
LCT 640 Using the mic High-pass filter indications ⑥ ·The currently active high-pass setting is illuminated. Setting a high-pass filter ·High-pass filters can be set by briefly pressing the high-pass filter push button ⑦. Settings are: Off, 12 dB / octave at 40 Hz and 6 dB / octave at 150 and 300 Hz. High-pass filters eliminate unwanted low frequency noise such as structure borne noise.
LCT 640 Using the mic Key-lock function The push buttons of the microphone can be locked and unlocked by constantly pressing the polar pattern push button ③ for more than 2 seconds. Clipping history Checking the clipping history lets you know if the microphone had experienced clipping in the past. The microphone displays the clipping history after constantly pressing the high-pass push button ⑦ for more than 2 seconds.
LCT 640 Tech data 3 dB / unit 3 dB / unit Tech graph Dimensions 52 Omni dB ref. 1 V / Pa Figure-8 dB ref. 1 V / Pa 3 dB / unit 158 Broad-cardioid 3 dB / unit 3 dB / unit dB ref. 1 V / Pa Super-cardioid Cardoid dB ref. 1 V / Pa dB ref.
LCT 640 Tech data Tech data ·Acoustical operating principle: ·Transducer Ø: ·Directional pattern: ·Frequency range: ·Sensitivity: ·Signal / noise ratio: ·Equivalent noise level: pressure gradient transducer, externally polarized 25,4 mm 1 inch omni broad-cardioid cardioid super-cardioid figure-8 20 ... 20.
LCT 640 Accessories Accessories LCT 40 Wx DTP 40 Lb LCT 40 SHx AIu-case 10
LCT 640 Cautions Cautions ·The capsule is a sensitive, high precision component. Make sure you do not drop it from high heights and avoid strong mechanical stress and force. ·To ensure high sensitivity and best sound reproduction of the microphone, avoid exposing it to moisture, dust or extreme temperatures. ·Keep this product out of the reach of children. ·Do not use force on the switch or cable of the microphone. ·When disconnecting the microphone cable, grasp the connector and do not pull the cable.
LCT 640 Warranty Warranty All products manufactured by LEWITT GmbH feature a limited two-year warranty. This two-year warranty is specific to the date of purchase as shown on your purchase receipt. LEWITT GmbH shall satisfy the warranty obligations by remedying any material or manufacturing faults free of charge at LEWITT’s discretion either by repair or by exchanging individual parts or the entire appliance.
LCT 640 Regulatory information LEWITT GmbH declares under its sole responsibility that LCT 640 complies with the European directive 2004/108/EC. The product has been tested according to harmonized European standards: EN 55013:2001+A1:2003+A2:2006 EN 55020:2007 EN 61000-3-2:2006 EN 61000-3-3:1995+A1:2001+A2:2005 Product testing was carried out by TIMCO Engineering Inc., notified body number 1177. WEEE note: Electronic waste has to be collected separately.
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