Royer SF12 Quick Start Guide

ROYER SF-12

Stereo Coincident Ribbon-Velocity Microphone

The Royer SF-12 stereo coincident ribbon microphone is
the only microphone of its kind available, combining high
quality audio performance with outstanding stereo
separation and imaging. It is a modern ribbon design with
no audible diffraction effects or cavity resonance.

An SF-12 is actually two matched ribbon microphones
placed one above the other, each aimed 45 degrees from
center. The frequency response is excellent regardless of
the angle of sound striking the ribbons and off-axis coloration

is negligible. When held vertically, connector down, the

upper microphone is the left channel and the lower

microphone is the right channel. The SF-12’s extension cable
comes with an adapter which splits into separate left and right
XLR connectors, labeled “upper” and “lower”.

The SF-12’s two 1.8-micron ribbons are of pure aluminum (99.99%),
each weighing approximately 1/3 milligram and producing superb
transient response. The ribbon transducer’s proprietary cross­field motor assemblies (patent pending) are each comprised
of four powerful Neodymium magnets and Permendur iron pole­pieces. The cross-field design assures the shortest front-to-rear
ribbon path length for best high frequency response. The case
is ingot iron and forms part of the magnetic return circuit, an
effective system with low leakage flux which accounts for the
relatively high sensitivity in a trim package.

SF-12 FEATURES

•True stereophonic recording from one microphone

•No internal active electronics to overload or produce distortion
up to maximum SPL rating.

•Extremely low residual noise

•Ribbon element not affected by heat or humidity

•Absence of high frequency phase distortion

•Equal sensitivity from front or back of elements

•Consistent frequency response regardless of distance

•Very low magnetic leakage

•High efficiency toroid matching transformers and gold plated
output connector

RECOMMENDED APPLICATIONS

•Stereo & Distance miking

•Choir, Orchestra, String Sections

•Overhead Drums, Room Miking

•Percussion Instruments

•Brass Instruments - Horn Sections

•Woodwinds

•Stereo Acoustic Piano, Harp, etc.

•Acoustic Guitar, Mandolin, stringed instruments

ROYER SF-12

Technical Specifications

Acoustic Operating Principle

Polar Pattern

Generating Element

Magnets

Frequency Response

Sensitivity

Output Impedance

Rated Load Impedance

Maximum SPL

Output Connector

Dimensions

Weight

Finish

Accessories

Electrodynamic pressure gradient

Symmetrical figure-8

1.8-micron aluminum ribbon

Rare Earth Neodymium

30 -15 000 Hz ±3dB

>-52 dBv Re. 1v/pa

300 Ohms @ 1K (nominal)

>1500 Ohms

>130dB

Male XLR 5 pin (stereo)

206mm L, 25mm W (8" L, 1" W)

369 grams (13 oz )

Matte Black Chrome/Dull Satin Nickel (optional)

Protective wood case, 18’ Cable (XLR5
to 2 standard 3 pin XLR male),
mic clip, mic sock

Optional Accessories

Warranty

Suspension shockmount, windscreen

Lifetime to original owner
(repair or replace at Royer's option)

Frequency Response and Polar Pattern

+10

+5

0

-5

-10

20 50 100 500 1000 5K 10K 20K

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+

+

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M-S

+

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X-Y

Royer Labs™

821 North Ford Street, Burbank, CA 91505
Tel. [phone] Fax [phone]
www.royerlabs.com

270˚

240˚

300˚

0˚

330˚

210˚

COPYRIGHT ROYER LABS 2000

All specifications subject to

30˚

150˚

180˚

Lower Microphone
Upper Microphone

change without notice

60˚

90˚

120˚