User's Manual
Table Of Contents
- Introduction
- SF-24V Vacuum Tube Stereo Ribbon Microphone
- Active & Vacuum Tube Ribbon Technology
- Description
- Applications
- Ribbons in the Digital World
- User Guide
- Using the SF-24V Vacuum Tube Stereo Ribbon Microphone
- Operation
- Power Supply Input Module
- Fuse Replacement
- Voltage Changeover
- Amplification Considerations
- Stereo Microphones and Ground Loops
- Equalization and Ribbon Microphones
- Hum, Noise and Mic Orientation
- Microphone Techniques
- General Tips for Using the Royer SF-24V
- Specialized Stereo Recording Techniques
- Classic Blumlein Technique
- Mid-Side (M-S) Technique
- Care and Maintenance
- Care for the Satin Nickel Finish
- Care for the Optional Optical Black Finish
- Care for the SF-24V’s African Padouk Presentation Case
- Features
- Specifications
- Polar Pattern
- Frequency Response
- Wiring Diagram
- Warranty
Care for the SF-24V’s African Padouk Presentation Case
The SF-24V’s handcrafted presentation case is milled from two matching pieces of African
Padouk. To best protect the case, minimize direct and prolonged exposure to sunlight, heat, and
moisture. As the case ages, it will take on a darker, more lustrous hue. To maintain and beautify
the case’s finish, we suggest wiping it with a thin coat of boiled linseed oil or Tung oil (available
at most home improvement stores) once a year. Use the oil sparingly and apply with a soft cloth.
Paste wax may also be used for a high luster finish.
CAUTION!
Due to the transducer’s powerful magnets, keep recorded tapes, spring-wound watches and
personal credit cards with magnetic coding away from the microphone to prevent possible
damage.
Features
• Excellent stereo imaging and separation in one microphone
• Smooth, wide frequency response
• Vacuum Tube electronics offer greatly enhanced output and a constant, optimized impedance
to the ribbon element
• X-Y, M-S, or mono recording from one microphone
• Extremely low residual noise
• Ribbon elements are unaffected by heat or humidity
• Absence of high-frequency phase distortion
• Excellent phase linearity – even off axis
• Equal sensitivity from front or back of microphone
• Consistent frequency response regardless of distance
• Compact size
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