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Product Description
The Lewitt LCT 550 is the first and only large-diaphragm studio microphone ever to achieve 0 dB (A) self-noise*. 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 ...)
Specifications:
- Acoustical operating principle: pressure gradient transducer, externally polarized
- Diaphragm: 3 micron gold sputtered Mylar
- Transducer Ø: 25.4 mm / 1 inch
- Polar pattern: cardioid
- Frequency range: 20 to 20,000 Hz
- Sensitivity: 36 mV / Pa (-29 dBV), +/- 0 dB @ 1 kHz
- Signal / noise ratio: 91 dB (A)
- Equivalent noise level: 0 dB (A) self-noise from electronics and circuitry
- Dynamic range of FET mic. Amp.: 140 dB (A)
- Max. SPL for 0,5 % THD: 143 dB, 0 dB pre-attenuation
- Pre-attenuation pad: 6 dB, 12 dB, switchable
- Low cut: 12 dB / octave at 80 Hz
- Rated impedance: < 150 ohms
- Rated load impedance: > 1.000 ohms
- Supply voltage: 48 V +/- 4 V
- Current consumption: 5.5 mA
- Enclosure: Zinc die cast
- Connector: gold plated 3-pin XLR
- Dimensions: 158 x 52 x 36 mm / 6.22 x 2.04 x 1.42 inch
- Net weight: 425 g / 14.9 oz
Features
Specifications
| Package Contents | |
|---|---|
| Diameter | |
| Length | |
| Frequency Range | |
| Impedance | |
| Input Pad | |
| Number of Microphones | |
| Phantom Required | Yes |
| Polar Pattern | Cardioid |
| Sensitivity | |
| Maximum SPL | |
| Transducer Type | Condenser |
| Tube or Solid State |