Bring the unmistakable intimacy of a classic ribbon microphone to modern recording setups with the Sontronics Sigma 2 active ribbon microphone. Building on the original Sigma—one of the earliest phantom-powered ribbon microphones—this second-generation design combines traditional ribbon warmth with high sensitivity, low self-noise and a strong output that integrates easily with contemporary audio interfaces, preamps and mixers. Its 20Hz–15kHz frequency response delivers smooth highs, natural mids and full-bodied lows, while a true figure-8 pattern captures the front and rear of the microphone with strong rejection at the sides. From expressive vocals and solo strings to brass and woodwinds, the Sigma 2 captures performances with a natural sense of depth, detail and character.

Active Ribbon Design Combines Warmth With High Sensitivity

Phantom-powered active electronics give this ribbon design a healthy 24mV/Pa sensitivity while preserving the smooth, intimate response associated with traditional ribbon microphones. That stronger output makes it practical for quieter and more nuanced sources without demanding excessive preamp gain, while a low 10dB A-weighted equivalent noise level helps keep delicate details clear. With impedance of 150 ohms or less, the microphone integrates readily into modern recording signal chains while retaining the natural tonal character that makes ribbon capture so useful on voices and acoustic instruments.

Figure-of-Eight Pickup Opens Up Creative Recording Options

A true figure-of-eight polar pattern captures sound equally from the front and rear while providing strong rejection at the sides, giving engineers flexibility for close-miking, room interaction and stereo recording techniques. Maximum SPL handling of 125dB also allows the Sigma 2 to move beyond delicate sources and capture guitar amplifiers or percussion when positioned with appropriate care. Integral RFI filters help protect recordings from unwanted radio-frequency interference, making this microphone a dependable option for professional studios, venues and location setups as well as controlled home-recording environments.

British Engineering Meets Classic Ribbon Style

Hand-built in the UK, the Sigma 2 pairs its precision ribbon technology with a rugged stainless-steel body and black anodized finish that evokes the understated elegance of vintage studio microphones. Its compact 6.5" x 2" x 1.3" form factor makes positioning straightforward around performers and instruments, while the included shockmount helps isolate the microphone from unwanted mechanical vibration. Supplied in a protective ABS flight case for storage and transport, the Sontronics Sigma 2 gives vocalists, instrumentalists and recording engineers a versatile active ribbon microphone that balances classic warmth with the sensitivity and convenience of a modern studio design.