Royer Labs SF-12 Stereo Ribbon Microphone – Blumlein Coincident Stereo Capture
The Royer Labs SF-12 is a professional stereo ribbon microphone designed for capturing natural, immersive stereo recordings in a single-point coincident configuration. It combines two matched ribbon transducers in a fixed Blumlein (and Mid-Side capable) arrangement, making it a go-to microphone for orchestral recording, drum overheads, acoustic instruments, and high-end ambient capture.
True Stereo Capture in a Single Microphone
The SF-12 integrates two precision-aligned ribbon elements set in a fixed 90°/Blumlein configuration. This allows it to capture accurate stereo imaging from a single microphone position, preserving phase coherence and spatial realism without the need for multi-mic setups.
Natural Ribbon Sound with Ultra-Smooth Highs
Like all Royer ribbon designs, the SF-12 delivers a warm, natural tonal balance with smooth high-frequency response. It avoids harshness and sibilance while maintaining detail, making it especially effective for cymbals, strings, brass, and acoustic instruments.
Highly Accurate Stereo Imaging
The coincident ribbon design ensures excellent phase accuracy between left and right channels. This produces stable stereo imaging with a realistic sense of depth and room ambience, especially in orchestral and acoustic recording environments.
High SPL Handling for Loud Sources
Despite being a ribbon microphone, the SF-12 handles high sound pressure levels extremely well, making it suitable for close-miking loud sources such as drum kits, guitar cabinets, and brass sections without distortion or breakup.
Passive Ribbon Design – No Power Required
The SF-12 is a passive microphone with no internal electronics, requiring no phantom power. This contributes to its low noise floor, high reliability, and pure signal path while reducing distortion risk in high-SPL environments.
Professional Studio Applications
It is widely used in professional recording studios for orchestras, drum overheads, piano, choirs, and room ambience capture. Its ability to function as both a stereo and dual-mono source adds flexibility in advanced recording workflows.
Key Features
- Stereo ribbon microphone with fixed Blumlein coincident configuration
- Two matched 1.8-micron aluminum ribbon elements
- Natural, smooth high-frequency response with minimal harshness
- Excellent stereo imaging and phase coherence
- High SPL handling for drums, brass, and guitar amps
- Passive design with no active electronics or phantom power required
- Can function as stereo or dual mono microphone
- Ideal for acoustic, orchestral, and ambient recording
Specifications
- Microphone Type: Stereo ribbon (dual element)
- Polar Pattern: Figure-8 (each ribbon)
- Frequency Response: approx. 30 Hz – 15 kHz
- Maximum SPL: approx. 130 dB
- Sensitivity: approx. -52 dBV/Pa
- Output Impedance: approx. 300 ohms
- Connector: 5-pin XLR (split to dual XLR outputs)
- Power Requirement: None (passive ribbon design)
- Weight: approx. 369 g
Ideal For
The Royer SF-12 is ideal for recording engineers and studios that require natural stereo imaging, phase-accurate room capture, and smooth ribbon tone for orchestral, acoustic, and high-end music production environments.