Royer Manual
Table Of Contents
- Introduction
 - Active Ribbon Technology
 - Description
 - Ribbons in the Digital World
 - User’s Guide
 - Operation
 - Using the RSM-24 Shock Mount Accessory
 - Amplification Considerations
 - The Sweet Spot
 - Proximity Effect and Working Distance
 - Microphone Technique
 - Stereophonic Microphone Technique
 - Care and Maintenance
 - Features and Specifications
 - Polar Pattern
 - Frequency Response
 - Warranty
 
cause the microphone to become inoperative. Since the active electronics isolate the ribbon 
element from phantom power, a miswired cable should not cause damage to the ribbon.
5. Never  attempt  to  “test”  the  SF-2  or  any  ribbon  microphone  with  an  ohmmeter.  A  blown 
ribbon could result.
6. Always provide adequate wind protection by using a windscreen or mic sock with your SF-2 
(and any other ribbon microphone).
7. If the microphone is to remain set up on a stand when not in use, place the provided mic sock 
over it until it is to be used. Do not carry the microphone around without placing a mic sock 
over  it.  Failure  to  follow  this  commonsense  practice  may  yield  a  stretched  ribbon  and 
compromised performance.
Using the RSM-24 Shock Mount Accessory
Description
The SF-2 comes standard with an SFS-2 shock mount. This mount is operated by squeezing the 
clip side of the shock to widen its felt-lined interior, inserting the microphone, then releasing the 
clip to hold the mic securely. 
The  SF-2  with  Deluxe  packaging  is  supplied  with  a  Royer  RSM-24  suspension  type  shock 
mount.  The  RSM-24’s  specially  formulated  polymer  mounts  provide  maximum  isolation  from 
shock  and  vibration  while  holding  the  SF-2  securely  in  place,  allowing  the  microphone  to  be 
safely positioned at any angle.
Carefully slide the SF-2 into the RSM-24, lining up the microphone’s logo with the RSM-24’s 
forward facing slot. The fit will feel tight, but the RSM-24’s Teflon interior will not scratch the 
microphone’s finish. 
Amplification Considerations
Most quality  microphone preamplifiers  with nominal  to high-gain  characteristics and  a built-in 
48-volt phantom power source will give good results with your SF-2 active ribbon microphone. 
Unlike  standard  ribbon  microphones,  which  depend  on  a  proper  impedance  match  to  deliver 
optimal performance, the input impedance of your preamplifier will have minimal effect on the 
SF-2’s performance because the ribbon element is loaded perfectly via the microphone’s internal 
electronics. Careful consideration should be given to the quality of the microphone preamplifier. 
Studio  grade  preamplifiers  usually  sound  much  better  than  cheaper  models.  Headroom,  noise 
floor, transparency and coloration are all factors to consider in determining which preamplifier is 
suitable for your studio or live applications. Other features are usually secondary and fall into the 
categories of convenience or interface capabilities (such as digital or optical outputs). 
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