royer SF-24V Скачать руководство пользователя страница 15

Piano

There are several positions that will give excellent results with the piano. Start with a distance of 
one  foot  to  several  feet  from  the  knee  of  the  piano. A  more  direct  “up  front”  sound  will  be 
achieved when the microphone  is placed closer to the  soundboard. If it is possible  to remove the 
piano lid,  the SF-24V  suspended horizontally over the soundboard will give outstanding results. 
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.

Choir and Orchestra

An  SF-24V  can  produce  dramatically  good  recordings  of  an  orchestra  or  choir.  If  possible, 
position the  SF-24  at a  height  of ten feet or  so  and a  few  feet  behind  the  conductor. The  wide 
stereo pickup will  reproduce  the  orchestra  or  choir  with  a  stunning  you-are-there  realism.  The 
rear lobes of the figure-8 elements bring the ambient qualities of the recording environment  into 
the recording, adding to the natural feel of the recorded performance.

Percussion

The  SF-24V records percussion instruments naturally,  without upper frequency hype or low-end 
boominess.  Congas,  bongos  and  the  like  can  be  recorded  with  left/right  stereo  effect  by 
positioning  the  mic  within  a  few  feet  of  the  instruments.  Shakers,  bells,  triangles  and  other 
instruments  that  are  often  problematic  in  the  upper  frequencies  will  record  naturally  and 
unobtrusively.

Vocal with Acoustic Guitar

For  recording  a  vocal  with  acoustic  guitar,  two  separate  mono 
tracks are required with little leakage between the tracks. One stand 
and one horizontally positioned SF-24V can do the job nicely when 
the two axes of sensitivity are correctly oriented 

(see illustration).

Note:

The  SF-24V  is  not  recommended  for  close-miking  loud  amplified 
instruments.  Its  sensitive  ribbon  elements  were  not  designed  for 
extremely  high  SPL  applications  like  close-miked  electric  guitar. 
For  close-miking  high  SPL  sound  sources,  ruggedness  is  a  must 
and we recommend using our R-121 or R-122 ribbon microphones.

15

Содержание SF-24V

Страница 1: ...Royer Labs Model SF 24V Vacuum Tube Stereo Ribbon Velocity Microphone Operation Instructions Manual User Guide Made in U S A ...

Страница 2: ... 8 Connecting the SF 24 8 Power Supply Input Module 9 Fuse Replacement 9 Voltage Changeover 9 Amplification Considerations 10 Stereo Microphones and Ground Loops 11 Equalization and Ribbon Microphones 12 Hum Noise and Mic Orientation 12 Microphone Techniques 13 General Tips for Using the Royer SF 24V 13 Specialized Stereo Recording Techniques 16 Classic Blumlein Technique 16 Mid Side M S Technique...

Страница 3: ... this microphone Royer Labs products are manufactured to the highest industrial standards using only the finest materials obtainable Your model SF 24V went though extensive quality control checks before leaving the factory Normal care is all that is required to assure a lifetime of trouble free service Please read this manual thoroughly in order to become familiar with all of the SF 24V s capabili...

Страница 4: ...d by the ROYER logo If however the microphone is suspended upside down the connections to the preamplifier should be reversed since what was the left transducer is now responding to signals from the right and vice versa Your SF 24V is supplied with a dedicated power supply and 7 pin microphone interface cable The output for each channel consists of a chassis mounted 3 pin male XLR connector These ...

Страница 5: ...ffering circuits Power for the tubes is supplied to the microphone from a dedicated AC line operated power supply that connects to the microphone through a 7 pin microphone cable The power supply provides a high voltage source and independent low voltage sources for the vacuum tube s filaments An electronic constant current source automatically compensates for any change in the microphone s cable ...

Страница 6: ...roximately the same distance used for cardioid microphones This method is used to achieve the same ratio of direct to reflected sound 2 In the horizontal plane ribbon microphones do not discriminate against the highs off axis nor do they boost them on axis Therefore several instruments or vocalists can be placed in front of the microphone without favoring the performer in the center of the group S...

Страница 7: ... with minimal pressure There is also a relief button that enables the clutch handle to be repositioned out of the way The shock mount has two orientation slots for easy X Y and M S positioning The X Y slot faces forward and the M S slot is 45º to the left Usage It is important to use the RSM 24 shock mount correctly Making sure that the microphone is inserted properly into the shock mount will min...

Страница 8: ...ements are sensitive to abrupt shocks and blasts of air so be gentle Note If after a time body oils or other contaminants make it difficult to insert or remove the microphone from the shock mount a small amount of talc can be used to lubricate the microphone housing Use talc very sparingly and do not let any of it get into the ribbon transducers as it can compromise the ribbons performance Connect...

Страница 9: ...tly pry the door open Image 3 Be careful not to damage the painted surface of the chassis housing The fuses are located inside two carriers each marked with an arrow pointing to the right These carriers can be pulled out with the tip of a screwdriver blade or a pair of needle nose pliers Image 4 Once the carriers are removed the fuses can be pulled out with your fingers Replacing the fuse carriers...

Страница 10: ...utput allows for long cable runs with minimal affect on the microphone s performance High frequency response losses and noise pickup will be minimal even with cable runs up to several hundred feet in length NOTE There are no user serviceable parts in the power supply or microphone Leave all servicing of your SF 24V to a qualified technician authorized to service this product Amplification Consider...

Страница 11: ...ics 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 switchable pad to prevent the possibility of overloading the preamplifier s input stage electronics Some preamplifiers are more thoughtfully designed than others with a suitable pad that is placed before the preamp s active electronics not ...

Страница 12: ...ibility The reason that ribbon mics take EQ so well is their inherent low self noise unusually smooth frequency response characteristics and freedom from off axis coloration Dialing in high amounts of equalization on condenser or dynamic microphones also means dialing in extra amounts of the microphone s distortion products and self noise garbage that contributes to an unnatural unpleasant sound B...

Страница 13: ...ponding lower level and hence less likely to be objectionable Microphone Techniques General Tips for Using the Royer SF 24V The following are good basic starting places for recording with the SF 24V These positions are known to produce good results but experimentation is the key to getting the most out of your recordings Photographs of many of the following techniques can be found on our website w...

Страница 14: ...um tracks where cymbals need to sizzle you can brighten them by adding a few dB of 10K to 12K Brass Brass records beautifully with ribbon microphones For an overall picture of a brass section within a larger recording session try placing the microphone at a distance of three to eight feet from the section two to three feet above the instrumentalists and angled downward For a solo brass section pos...

Страница 15: ...ou are there realism The rear lobes of the figure 8 elements bring the ambient qualities of the recording environment into the recording adding to the natural feel of the recorded performance Percussion The SF 24V records percussion instruments naturally without upper frequency hype or low end boominess Congas bongos and the like can be recorded with left right stereo effect by positioning the mic...

Страница 16: ... can be summed to mono with no comb filter effects and room reverberation undesirable in mono is cancelled to a surprising degree For the sake of clarity engineers commonly refer to similar stereo miking with cardioid mics as X Y When figure 8 s are used it is more commonly referred to as Blumlein recording Mid Side M S Technique In the early days of stereo radio broadcasting the Mid Side recordin...

Страница 17: ...ement turned all the way down you have just the mid element panned center and giving a mono pickup If the outputs of the mid and side elements are recorded on separate tracks the electrical connections shown in Figure 3 can be made at the mixer outputs and the adjustment of the stereo separation can be done during mixdown rather than during the actual recording Space does not permit a fuller discu...

Страница 18: ...A small amount of denatured alcohol can be used to remove fingerprints and other stains Use WD 40 or mineral oil to protect the finish 6 Keep metal filings away from the microphone at all times The SF 24V s powerful magnets can attract minute ferrous particles into the ribbon transducers compromising the performance 7 When not in use store the microphone in its protective carrying case If the micr...

Страница 19: ... 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 electronic...

Страница 20: ...ure with wire leads Output Connectors Two 3 Pin Male XLR connectors Power Requirements 110 120 220 240 volts AC 50 60HZ see manual Mic Dimensions 270mm X 39mm base X 25mm top 10 5 8 X 1 5 wide base X 1 wide top Microphone Weight 572 grams 20 2 ounces Shipping Weight 21 LBS Finish Dull Satin Nickel Optional finishes Optical Black Chrome and 18K Gold Accessories Camera style carrying case dedicated ...

Страница 21: ...Polar Pattern Frequency Response 21 ...

Страница 22: ...Wiring Diagram 22 ...

Страница 23: ... 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 EXCLUSIONS This warranty does not cover the following 1 Defects or damage caused by accident fire flood lightning or other acts of nature 2 Defects or damage caused by abuse misuse negligence or failure to ...

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