Lewitt AMS-LCT-840 Reference Class Tube Microphone — main product image

Lewitt AMS-LCT-840 Reference Class Tube Microphone

Lewitt

Lewitt AMS-LCT-840 Reference Class Tube Microphone

Name: Lewitt AMS-LCT-840 Reference Class Tube Microphone
Brand: Lewitt
SKU: AMS-LCT-840

Exceptional Tube Microphone for Studio and Stage The Lewitt LCT 840 Reference Class Tube Microphone is a premium-quality microphone designed for capturing exceptional audio in a variety of demanding applications. With its dual-diaphragm design and versatile polar patterns, this microphone deliver...

$1,199.00*

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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.

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Overview

Exceptional Tube Microphone for Studio and Stage

The Lewitt LCT 840 Reference Class Tube Microphone is a premium-quality microphone designed for capturing exceptional audio in a variety of demanding applications. With its dual-diaphragm design and versatile polar patterns, this microphone delivers a warm, classic sound ideal for vocals and instruments.

Specifications:

Type: Premium externally polarized dual-diaphragm tube microphone
Diaphragm: Ultra-thin 1-inch externally biased, gold-layered low-mass diaphragms
Polar Patterns: 5 directional characteristics (omni-directional, cardioid, figure-8, wide-cardioid, super-cardioid)
Self-Noise: Extremely low self-noise of 9 dB
Pre-Attenuation Pad: 3-position switchable (0 dB, 10 dB, and 20 dB)
High-Pass Filter: 3-position switchable
Special Features: Illuminated user interface, jog dials, Plexiglas inspection window
Connectivity: Wired (XLR)
Material: Zinc

Key Features

Premium externally polarized dual-diaphragm tube microphone with superior dynamic range and low self-noise

Ultra-thin 1-inch 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

5 directional characteristics for maximum flexibility in a wide variety of recording applications

3-position switchable pre-attenuation pad (0 dB, 10 dB, and 20 dB) for handling extremely high sound pressure levels and 3-position high-pass filter

Illuminated user interface and jog dials for easy handling even in dark environments

Specifications

Microphone Type

Reference Class Tube Microphone

Diaphragm Type

Externally polarized dual-diaphragm

Diaphragm Size

Ultra-thin 1-inch, gold-layered low-mass

Directional Characteristics

Pre-attenuation Pad

3-position switchable (0 dB, 10 dB, 20 dB)

High-pass Filter

3-position

User Interface

Illuminated, jog dials

Frequently Asked Questions

What makes the Lewitt AMS-LCT-840 a "Reference Class" microphone?

The Lewitt AMS-LCT-840 is designated "Reference Class" due to its premium externally polarized dual-diaphragm tube design, superior dynamic range, and low self-noise.

How does this microphone achieve its sound quality?

It utilizes ultra-thin 1-inch externally biased, gold-layered low-mass diaphragms combined with a dual triode tube to ensure accurate transient response and provide a smooth, warm, and airy tube sound.

How many directional characteristics does this microphone offer?

This microphone provides 5 directional characteristics, offering maximum flexibility for various recording applications and optimizing sound capture for different sources.

Can this microphone handle loud sound sources without distortion?

Yes, it features a 3-position switchable pre-attenuation pad (0 dB, 10 dB, and 20 dB), allowing it to handle extremely high sound pressure levels effectively.

Does the Lewitt AMS-LCT-840 have a high-pass filter?

Yes, it includes a 3-position high-pass filter, which is useful for reducing unwanted low-frequency noise or adjusting for proximity effect during recording.

Is the microphone easy to operate in low-light conditions?

Yes, it features an illuminated user interface and jog dials, designed for easy handling and adjustments even when working in dark recording environments.

What are the benefits of having a dual triode tube in this microphone?

The dual triode tube integrated into the microphone is key to achieving its characteristic smooth, warm, and airy tube sound, enhancing the overall sonic quality.

Strengths & Trade-offs

👍 Pros

Features an externally polarized dual-diaphragm tube design, delivering premium sound quality with a smooth, warm, and airy tube character.
Equipped with ultra-thin 1-inch externally biased, gold-layered low-mass diaphragms, ensuring accurate transient response for detailed recordings.
Boasts a superior dynamic range and low self-noise, making it ideal for capturing a wide array of sound sources with clarity.
Offers 5 directional characteristics, providing maximum flexibility for various recording applications and acoustic environments.
Includes a 3-position switchable pre-attenuation pad (0 dB, 10 dB, and 20 dB), allowing it to handle extremely high sound pressure levels without distortion.
Features a 3-position high-pass filter, useful for eliminating unwanted low-frequency rumble or proximity effect.
Comes with an illuminated user interface and jog dials, facilitating easy handling and adjustments even in dimly lit studio environments.
The dual triode tube within the microphone contributes to its characteristic warm and rich audio reproduction.

👎 Cons

The "reference class" status and advanced features suggest a higher price point, which might be prohibitive for budget-conscious home studio users.
Being a tube microphone, it typically requires a warm-up period before optimal performance is achieved.
The need for an external power supply and specialized cables (not explicitly mentioned as included) can add to the setup complexity.
The microphone's sophisticated controls and multiple polar patterns might present a steeper learning curve for novice users.
Its large diaphragm design, while beneficial for sound, may require proper acoustic treatment in the recording environment to prevent unwanted room reflections.