Lewitt PURE TUBE Essential Set

Lewitt PURE TUBE Essential Set

Lewitt PURE TUBE is a premium studio microphone with tube technology, developed to deliver a modern, warm and inspiring vocal sound with extremely low noise. The 1-inch true condenser capsule with a cardioid pickup pattern drives a completely new, puristic tube circuit free from semiconductors and capacitors in the signal path, resulting in maximum clarity and a smooth, musical high end.

Revolutionary tube circuit and capsule

PURE TUBE uses a 3 µm gold-sputtered Mylar diaphragm in a 1-inch externally polarized condenser capsule. It is powered by a specially developed circuit design where the signal path is free from semiconductors and capacitors. A hand-selected 12AU7/ECC82 tube provides subtle character, rich warmth and naturally rounded highs — optimized for modern vocal sound.

Optimized for vocals and voice

The microphone is holistically designed for vocal production: a frequency range of 20–20,000 Hz, cardioid polar pattern, and a signal-to-noise ratio of 87 dB(A). It lets the voice sit naturally at the front of the mix while handling heavy compression and stacked vocal layers without unwanted noise.

Ultra-low self-noise

Thanks to the puristic tube circuit and carefully optimized construction, PURE TUBE reaches a self-noise level of only 7 dB(A). This makes it especially suitable for sensitive vocal recordings, soft dynamics, extensive layering and situations where heavy compression is used without raising noise.

Thoughtful studio integration

The package includes a compact external power supply (PSU) that works with both 230 V/50 Hz and 110 V/60 Hz. The microphone connects via a 7-pin XLR connector to the PSU, placing all active electronics outside the capsule for optimal signal quality. The zinc die-cast microphone housing ensures durability and long life.

Specifications

• Type: Externally polarized tube condenser microphone
• Acoustic principle: Pressure gradient transducer
• Diaphragm: 3 µm gold-sputtered Mylar
• Capsule diameter: 25.4 mm (1")
• Polar pattern: Cardioid
• Frequency range: 20–20,000 Hz
• Sensitivity: 28.2 mV/Pa (–31 dBV/Pa)
• Self-noise: 7 dB(A)
• Max SPL: 132 dB SPL
• Signal-to-noise ratio: 87 dB(A)
• Dynamic range: 125 dB(A)
• Tube: Hand-selected 12AU7/ECC82
• Power supply (PSU): 230 V, 50 Hz / 110 V, 60 Hz
• Connector (microphone): 7-pin XLR
• Microphone housing: Zinc die-cast
• Dimensions (microphone): 196 × 65 × 45 mm (7.7" × 2.6" × 1.8")
• Weight (microphone): 692 g (24.41 oz)
• Measurement standards: IEC 60268-4, IEC 61938 (phantom reference), IEC 60268-1 (noise measurement)

FAQ

Is PURE TUBE optimized for vocals?

Yes, the microphone is specifically designed and optimized for vocal recording, with capsule, circuit and mechanics tailored for voice use.

How low is the self-noise of PURE TUBE?

The self-noise is only 7 dB(A), which is extremely low for a tube-based studio microphone.

How is the microphone powered?

PURE TUBE uses an external PSU included in the package. It supports both 230 V/50 Hz and 110 V/60 Hz and connects via a 7-pin XLR cable.

What polar pattern does PURE TUBE have?

The microphone has a cardioid polar pattern, focusing on the sound source in front of the capsule while reducing unwanted room sound.