Sontronics Zeta – Professional Large-Diaphragm Condenser Microphone

Sontronics Zeta is a modern large-diaphragm condenser microphone designed and hand-built in the United Kingdom. Combining a high-sensitivity JFET circuit with a boutique Lundahl transformer, it delivers a clear, open and naturally musical sound. This studio microphone is created for vocalists, voiceover artists, music producers and audio engineers who demand exceptional detail and professional recording quality without relying on heavy processing.

Key Features

• High-sensitivity JFET design capturing every nuance with clarity and dynamics
• Boutique Lundahl transformer adding smooth, musical character
• Ultra-low self-noise (approx. 9 dBA)
• Cardioid polar pattern for focused sound capture
• Precision-machined, solid metal body
• Internal vibration isolation made from Markforged Onyx
• Hand-built and individually tested in England

Sound That Inspires Creativity

Designed to deliver a polished, studio-ready sound from the very first take, this microphone captures subtle vocal details and the natural dynamics of acoustic instruments. With a sensitivity of 33 mV/Pa, it reproduces performances with exceptional realism. The Lundahl transformer enhances warmth and musical depth without sacrificing transparency or definition.

Thanks to its extremely low self-noise of just 9 dBA, it performs equally well in professional recording studios and home studio environments. Even quiet vocal passages and ambient room recordings remain clean and controlled.

Applications

• Studio vocals (Pop, Rock, R&B, Indie, Jazz)
• Voice-over and spoken word
• Podcasting and streaming
• Acoustic guitar
• Piano and grand piano
• String instruments
• Room and ambient recordings

Technical Specifications

• Microphone type: Large-diaphragm condenser
• Polar pattern: Cardioid
• Frequency response: 20 Hz – 20 kHz
• Sensitivity: 33 mV/Pa
• Impedance: ≤200 Ω
• Max SPL: 125 dB (0.5% THD @ 1 kHz)
• Equivalent noise level: 9 dB (A-weighted)
• Connector: 3-pin XLR
• Power requirement: 48V phantom power
• Product weight: 0.68 kg
• Packaged weight: 2.15 kg
• Dimensions: 190 x 53 x 53 mm

Materials & Construction

The microphone features a precision-engineered metal body with a modern black finish and refined gold accents. Instead of traditional elastic suspension, the internal isolation system uses Markforged Onyx – a micro carbon-fibre-filled polymer with high internal damping. This design reduces structure-borne vibration through controlled mechanical dissipation without introducing secondary resonances.

What’s Included

• Sontronics Zeta condenser microphone
• Dedicated internal isolation mount (Internal Capsule Shockmount)
• Protective packaging

Conclusion

If you are looking for a microphone that combines modern clarity with transformer-driven musical warmth, ultra-low noise and a studio-ready sound straight out of the box, Sontronics Zeta is an outstanding choice. It is a professional tool built for creators who value tone, reliability and expressive performance in every session.