• Established in 1958

  • Free standard delivery over £199

  • Need help call 0207 636 1481

Lewitt LCT550 Studio Microphone

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. The microphones of the LCT Authentica Series stand for unaltered sound and innovative features: llluminated Settings, Noiseless Push Buttons, Automatic Attenuation with Clip Detection and History all ensure error-free sonic perfection and peerless ease of use for today’s demanding recording artists and engineers.

Lewitt LCT550 Studio Microphone


The LCT 550 is the first and only large-diaphragm studio microphone ever to achieve 0 dB-A self-noise*, and thus the world’s quietest. 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 ...)


  • 0 dB-A self-noise from electronics and circuitry*
  • Highly precise calibration of the capsule and the electronics – any two microphones from this series, set identically, will always form a matched pair at +/- 0 dB
  • 1-inch dual system externally biased capsule with an active front and ultra-thin, gold-layered low mass diaphragm for superior transient response
  • Tailored frequency response for rich and authentic sound on stage or in the studio
  • Cardioid polar pattern for effective isolation of the main sound source
  • Noiseless push buttons for attenuation and HPF selection
  • Max SPL of 143 dB for an impressive total dynamic range of 140 dB
  • 3-position switchable pre-attenuation pad (0 dB, 6 dB, and 12 dB) for handling extremely high soundw pressure levels and 3-position high-pass filter
  • Illuminated user interface for quick and easy handling even in dark environments
  • Noiseless pushbuttons for quick and easy attenuation and HPF selection
  • Clipping history, automatic attenuation and key-lock provide error-free recording and unparalleled ease of use Gold-plated 3-pin XLR output connector
  • Immune to electromagnetic interference thanks to transformerless preamplifier circuitry
  • Extra-large hexagonal ruthenium-galvanized steel-mesh grille provides an open acoustic environment and prevents unwanted internal reflections
  • Comes in a black carrying case; includes LCT 40 SHx shock mount, LCT 40 Wx windshield and DTP 40 Lb artificial leather bag
  • Top applications

  • Classical instruments and ensembles
  • Ambitious stereo recording techniques (XY, ORTF, AB, ...)
  • Vocals & background vocals
  • Acoustic instruments (strings, guitars, piano and similar)
  • Drum & percussion overhead
  • Details

    SKU LCT550
    Brand Lewitt
    Acoustical Operating Principle Pressure gradient transducer, externally polarized
    Directional Pattern Cardioid
    Transducer Ø 25.4 mm / 1 inch
    Frequency Range 20 ... 20.000 Hz
    Sensitivity 36 mV / Pa (-29 dBV)
    Signal / Noise Ratio (Tube) 91 dB-A
    Equivalent Noise Level (Tube) 0 dB-A, electronics only, 3 dB-A, according to IEC 60268-1 due to Brownian Motion
    Dynamic Range of FET Mic. Amp 140 dB-A
    Max SPL for 0.5% THD (Tube) 143 dB, 0 dB pre-attenuation, 149 dB, 6 dB pre-attenuation, 155 dB, 12 dB pre-attenuation
    Pre-attenuation Pad 6 dB,12 dB, switchable
    Bass Cut Filter Slope 12 dB / octave at 80 Hz, 6 dB / octave at 160 Hz
    Rated Impedance < 150 ohms
    Rated Load Impedance > 1.000 ohms
    Supply Voltage 48 V +/- 4 V
    Current Consumption 5.5 mA
    Connector Gold plated 3-pin XLR
    Net weight (Mic) 425 g / 14.9 oz.


    How much is delivery?
    At Ivor Mairants Musicentre we offer thousands of products that are currently in stock and can be delivered to your home address, anywhere in mainland UK. You will be able to see your delivery charge at the "Checkout" page.

    Do you offer Next Day Delivery?
    Yes, we offer a Next Day Delivery service for in-stock orders placed before 1pm Monday-Friday. Next Day Delivery and Saturday Delivery carries an extra charge. Ivor Mairants Musicentre commit to delivering on time, we rely however, on our carriers to fulfil their contract in this regard, and can not be held liable for any failure of third parties in fulfilling delivery expectations.

    Can I change my delivery address after I have placed my order?
    Once you have placed your order with us, we are unable to change any of the information you have given us, as most orders are dispatched from our distribution warehouse. Our contract carriers however offer various levels of free of charge enhanced service such as DPD PREDICT, which allows the consignee to be alerted by e-mail and/or text message of the delivery window and allows for changes allowed by the contract carrier to the detail of the actual delivery time and/or location. Where such services are available all orders will benefit from auto enrolment in the services. Ultimately, if there is no-one to sign for your delivery, you will be left a card by our contract carrier inviting you to collect from the depot or re-arrange delivery.

    If it proves impossible to deliver your goods within the time allowed by our contract carriers, the consignment will be returned to us and you will unfortunately become liable for all redelivery, and/or redirection charges. Please check your confirmation email for the status of your goods before contacting us. Should you need to change your details, for example you have moved house, you can change your details by contacting customer services on 0207 636 1481 or by email at info@ivormairants.co.uk and the new information will be updated within 24 hours. Please note that any orders placed before changes are made will use your old details.

    Can I track my order?
    The vast majority of our UK and Eire domestic consignments and international shipments are by trackable service. You will be emailed a tracking number with your dispatch information. Please note that tracking numbers are not used for smaller orders sent by Royal Mail or similar postal service. If you require your order to be consigned using a trackable service, please advise us AT THE POINT OF ORDER.


    There are no reviews yet. Be the first to review this product

    Out of Stock

    Our Price: £779.00

    Our Price £659.00

    Yours for just per month

    You May Also Like

    1. Lewitt LCT940 FET Condenser/Tube Microphone

      Our Price: £1,839.00

      Our Price £1,549.00

    2. Lewitt  LCT840 Dual-Diaphragm Tube Microphone

      Our Price: £1,279.00

      Our Price £1,079.00

    3. Lewitt MTP940 Large Diaphragm Live Microphone

      Our Price: £569.00

      Our Price £479.00

    4. Lewitt DGT650 Digital USB Multi-Tool Microphone

      Our Price: £569.00

      Our Price £469.00

    5. Lewitt LCT140 Condenser Microphone

      Our Price: £219.00

      Our Price £189.00

    6. Lewitt LCT240 Diaphragm Condenser Microphone

      Our Price: £219.00

      Our Price £189.00