User's Manual

TABLE OF CONTENTS
Model SF-24V Ribbon Microphone
Revised 2019
Introduction 3
SF-24V Vacuum Tube Stereo Ribbon Microphone 3
Active & Vacuum Tube Ribbon Technology 3
Description 4
Applications 4
Ribbons in the Digital World 5
User Guide 5
Using the SF-24V Vacuum Tube Stereo Ribbon Microphone 5
Operation 6
Power Supply Input Module 7
Fuse Replacement 7
Voltage Changeover 7
Amplification Considerations 8
Stereo Microphones and Ground Loops 9
Equalization and Ribbon Microphones 10
Hum, Noise and Mic Orientation 10
Microphone Techniques 11
General Tips for Using the Royer SF-24V 11
Specialized Stereo Recording Techniques 14
Classic Blumlein Technique 14
Mid-Side (M-S) Technique 14
Care and Maintenance 16
Care for the Satin Nickel Finish 16
Care for the Optional Optical Black Finish 16
Care for the SF-24V’s African Padouk Presentation Case 17
Features 17
Specifications 18
Polar Pattern 19
Frequency Response 19
Wiring Diagram 20
Warranty 21
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