1" true condenser studio microphoneLCT 540 SUBZERO

  • Incredibly detailed sound on vocals and instruments
  • Self-noise below the threshold of human hearing 
  • Ideal for extreme processing
  • Outstanding dynamic range
  • Cardioid polar pattern
LCT 540 S



LCT 540 S
Lifestyle LCT 540 S

Your mic for ultra-detailed studio recordings.

Rediscover your instrument and voice on a whole new level of musical detail. With the LCT 540 SUBZERO, we set a new benchmark in terms of capturing fine-grained details of your recording source. Our unique approach towards electronics and capsule design makes the microphone better than human hearing.

Record details of your voice and instruments that usually wouldn’t even be audible. Make every detail count.

Detailed sound on vocals and instruments

Experience a whole new level of musical detail.

The LCT 540 SUBZERO reveals unheard dimensions of musical detail. You can create ultra-resolution sonic images of your vocals and instruments. Make even the subtlest nuances sound crystal clear. Produce vibrant recordings and rediscover sound with depth and musicality.

Every single part is meticulously calibrated pushing this microphone to be even better than human hearing.

LCT 540 SUBZERO capsule

Self-noise values below the threshold of human hearing

How is this mic better than human hearing?

Our hearing threshold is very frequency-dependent. It is less sensitive towards low and very high frequencies and most sensitive around 2 – 5 kHz. With our specific and unique approach towards circuit and capsule design, we were able to realize self-noise that'll stay below the threshold of hearing across the entire frequency spectrum.

LCT 540 SUBZERO graph better than human hearing mobile
LCT 540 SUBZERO graph better than human hearing

Fit for extreme processing

Even the subtlest nuances sound crystal clear.

With its cutting-edge circuit and capsule design, the LCT 540 SUBZERO  features an impressive dynamic range of 132 dB to capture everything from loud to subtle. You won’t hear the self-noise of the mic even after heavily compressing the signal.

Material recorded with the LCT 540 SUBZERO is fit for extreme processing.

LCT 540 SUBZERO pop filter

Yes, we like science

We had to elevate measurement to a new level.

To measure the self-noise of the LCT 540 SUBZERO, we built a unique device. It's ten times more massive than conventional ones, weighing over 4500 kg or 9900 lbs in total. This amount of mass will dampen frequencies up to a 1/10,000th of their sound pressure. The frequency range from 20 Hz to 20,000 Hz is dampened by 60 dB, up to 80 dB on the higher frequencies. 

Measurement device LCT 540 SUBZERO
cardioid pattern
cardioid pattern

Cardioid pattern

Ideal for vocals and instruments.

A cardioid polar pattern picks up sound coming from the front of the mic. This makes it perfect to focus on a single instrument or your vocals in your studio.

LCT 540 SUBZERO - shock mount mobile
LCT 540 SUBZERO - shock mount


Audio Media International

“Overall its technical ability is sublime; it sounds warm, clear (not yet clinical), smooth and dynamic. I would look forward to further using a pair for a live classical recording - lessening the need for noise reduction tools in the mix stage. Thank you to LEWITT for pushing innovations and setting new benchmarks for microphone manufacturing.”

Ross Simpson

Full review


“This cardioid condenser shows its quality right away, sitting effortlessly next to a mic more than twice its price across a range of sources. For vocal work it ticks all the boxes, possessing great clarity along with an easily worked proximity buildup, a smooth high end and all the low-end richness you need for voiceovers or in-your-face breathy vocals. The condenser mic HF lift is subtle and free from phasey peaks, keeping sibilance natural and easily controlled.”

Robbie Stamp

Full review

Recording Magazine

“It’s not too crisp, has zero muddiness, and is best described as detailed, full, and musically honest. [...] Also, due to its clean nature, the LCT 540 SUBZERO makes not only an incredibly detailed vocal mic, but also a great closeup/intimate mic on the quietest of sources.”

Paul Vnuk Jr.

Sound on Sound

“Given that it is a mid-priced mic with a somewhat lower price tag than I expected from its performance, the LCT 540 SUBZERO represents extremely good value and is capable of taking on a wide range of recording tasks.”

Paul White

Full review


Acoustical operating principle

Pressure gradient transducer, externally polarized


3 micron gold sputtered Mylar

Transducer Ø

25.4 mm, 1 in

Polar pattern



41 mV/Pa, -28 dBV/Pa

Equivalent noise level

4 dB (A)

Max. SPL for 0.5 % THD

136 dBSPL, 0 dB pre-attenuation

Signal / noise ratio

90 dB (A)

Dynamic range

132 dB (A)

Pre-attenuation pad

 0 dB
-6 dB
-12 dB

Low-cut filter

80 Hz (6 dB/oct)
160 Hz (6 dB/oct)

Internal impedance

68 Ω

Supply voltage

48 V ± 4 V

Current consumption

3.6 mA 

Mic enclosure

Zinc die cast


Gold plated 3-pin XLR

Microphone dimensions

158 x 52 x 36 mm, 6.22 x 2.04 x 1.42 in

Microphone net weight

371 g, 13.1 oz

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Microphones measured according to: IEC 60268-4 | Phantom power according to: IEC 61938 | Noise measurement according to: IEC 60268-1

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