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Summary of Contents for royer SF-24V
- Page 1 Royer Labs Model SF-24V Vacuum Tube, Stereo Ribbon Velocity Microphone Operation Instructions Manual & User Guide Made in U.S.A.
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Page 2: Table Of Contents
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 Using the RSM-24 Shock Mount Accessory Description Features Usage Properly Inserting the Microphone into the Shock... -
Page 3: Introduction
SPL handling (130 dB) without the use of pads. It gives the SF-24V an output level comparable to that of condenser microphones, and its buffer stages provide a low impedance output and present a perfect impedance load to each of the ribbon elements. -
Page 4: Description
OUTPUT 1 and OUTPUT 2, and correspond to the lower and upper transducers, respectively. The SF-24V is reasonably tolerant of shock and vibration, but care should be taken to prevent accidental stretching of the ribbon elements due to rough handling. This is covered in the Care &... -
Page 5: Ribbons In The Digital World
"settle." 2. The stereo outputs of the SF-24V are available at the power supply through a pair of male XLR connectors. OUTPUT 1 corresponds to the upper transducer and OUTPUT 2 corresponds to the lower transducer when the mic is held vertically. -
Page 6: Operation
Therefore, listen to the feed before committing to it. 3. The Royer model SF-24V is a powered microphone and must be connected to its power supply to operate. -
Page 7: Using The Rsm-24 Shock Mount Accessory
Using the RSM-24 Shock Mount Accessory Description Your SF-24V is supplied with a Royer RSM-24 suspension type shock-mount accessory designed specifically for this microphone. The RSM-24’s specially formulated polymer mounts provide maximum isolation from shock and vibration while holding the SF- 24V securely in place, allowing the microphone to be safely positioned at any angle. -
Page 8: Removing The Microphone From The Shock
Connecting the SF-24 The SF-24V comes with a dedicated power supply that operates from line voltages ranging from 100-240 volts AC. A seven-pin cable is used to power the microphone and carry the audio signals from the microphone to the power supply. -
Page 9: Power Supply Input Module
Power Supply Input Module The power OFF/ON switch and the Power Input Module are located on the rear side of the power supply (Image 1). The Power Input Module (Image 2) serves multiple functions and is integral to the design of the power supply. It serves as a means to connect and remove the AC mains cable, it houses the AC line fuses, provides a convenient method of voltage changeover, and also serves as an RF line filter. -
Page 10: Amplification Considerations
Amplification Considerations Almost any stereo microphone preamplifier (or pair of mono preamplifiers) with nominal gain characteristics will give excellent results with your SF-24V vacuum tube ribbon microphone. Unlike standard ribbon microphones, which depend on a proper impedance match to deliver optimal performance, the input impedance of your preamplifiers will have minimal affect on the... -
Page 11: Stereo Microphones And Ground Loops
SPL applications like drum overheads. It will not overload or produce distortion up to its SPL handling capacity of 130 dB SPL. In actuality, the SF-24V’s ribbons would stretch well before the electronics would reach an overload condition. Due to the high output potential of the SF-24V, it is recommended that the microphone preamplifier you pair it with have a... -
Page 12: Equalization And Ribbon Microphones
The SF-24V reduces this condition because the essential gain is provided at the microphone, negating the need for additional gain to be supplied by the preamplifier. All Royer SF-series microphones (SF-1, SF-12, SF-24, SF-24 Live and SF-24V) are designed to minimize the effects of unwanted radiation by integrating the transducer barrel as part of the magnetic return circuit. -
Page 13: Microphone Techniques
It is important to remember that the SF-24V’s ribbon elements can be damaged by wind. When the SF-24V is mounted on a boom stand, be sure the stand is moved slowly. When the microphone is taken down, put it in its box immediately or, if it is to remain in its shock mount, place the mic sock over the transducer end of the microphone. - Page 14 SF- 24V vertically at a height of four to eight feet and anywhere from five to twenty or more feet from the section. Close miking brass is a job for the Royer R-121 or R-122 -- we do not recommend close-miking with the SF 24V or any SF-series microphone.
- Page 15 If the room sounds good, try positioning the mic 10 to 20 feet from the piano. If you position the SF-24V somewhere between the soundboard and the open lid of the piano, there will be some amount of reflected sound from the lid. Careful positioning can minimize or accent lid reflections, depending on what sound you’re striving for.
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Page 16: Specialized Stereo Recording Techniques
Rotating the SF-24V counter-clockwise by 45º positions it for MS recording. By inserting your SF-24V with the logo in the left slot of the RSM-24 shock mount (see Using the RSM-24 Shock-mount, page 7), then facing the shock-mount's logo directly at the center of the performance, the microphone will be rotated 45º... - Page 17 element is at 90º to the performance and is the “side” microphone. If the microphone is to be mounted upside down, make the proper adjustments in your wiring orientation. If the outputs of the mid and side elements are made equal using gain controls, the stereo pickup will be similar to that of two microphones placed as a Blumlein X-Y pair, delivering a wide stereo image.
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Page 18: Care And Maintenance
Care for the Satin Nickel Finish The SF-24V’s standard dull satin nickel finish is durable and easy to maintain. Simply use a soft cloth to clean the microphone body. If needed, a small amount of denatured alcohol can be used to remove fingerprints and other stains. ... -
Page 19: Care For The Sf-24V's African Padouk Presentation Case
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. -
Page 20: Specifications
Camera style carrying case, dedicated power supply, protective presentation case for the microphone, protective mic sock, 20-foot shielded 7-conductor cable RSM-24 shock mount, IEC AC-line cord. To learn more about Royer products and their usage, visit our website at www.royerlabs.com. -
Page 21: Polar Pattern
Polar Pattern Frequency Response... -
Page 22: Wiring Diagram
Wiring Diagram... -
Page 23: Warranty
1 year Parts and Labor SCOPE OF WARRANTY: From the date of original purchase and for the respective periods specified above, Royer Labs agrees to repair, at its sole expense, all Royer Labs products which are defective in material and workmanship.
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