Phase Technology FPS20 User Manual
Fps20

© 2004 SoundTube Entertainment, Inc. All rights reserved. REV 07.20.04
Specifications:
FPS20-8
System Type
2 x 50 mm (2.0 in) Stereo high-directivity focused
sound, voice coil/8 Ohm direct
Frequency Response (-3 dB)
1
250 Hz - 16.2 kHz
Frequency Response (-6 dB)
1
230 Hz - 17.3 kHz
Low Frequency (-10 dB)
1
210 Hz - 18.7 kHz
Max. Program Power
50 W
Max. Continuous Power RMS
2
25 W
Max. SPL dB @ .5M
108 dB
Sensitivity dB @ 1W/0.5M
3
91 dB
Impedance
8 Ohm (nominal value)
Coverage Angle (-6 dB)
50º @ 2 kHz
Directivity Factor (Q)
12.63 (100 Hz to 10 kHz averaged) 27.35 @ 2 kHz
Directivity Index (DI)
9.31 dB (100 Hz to 10 kHz averaged) 14.37 dB @ 2 kHz
Transducers
2 x 50 mm (2.0 in) Wide-range, fiber cone, rubber surround
Inputs
3 M (10.0 ft) Hardwire lead, 4 conductor
Dome Material
Custom molded PETG clear dome
Enclosure Material
Molded Plastic ABS driver housing
Colors
Clear, custom translucent & opaque colors available
Dome Diameter
514 mm (20.25 in)
Total Height
223 mm (8.75 in)
Weight
1.70 kG (3.75 lbs)
Accessories
Optional
SoundSleeves™ & Wall Mount Bracket
Key Features
• Patented Dual-Parabolic
™
dispersion
 control technology provides a dramatic 
 hot spot with crisp stereo separation.
• 514 mm (20.25 in) Custom-molded PETG 
 clear polymer dome. 
• Twin 50 mm (2.0 in) drivers for stereo 
 music & messaging.
• Patented ZeroReflection
™
enclosure
 technology for accurate sound 
 reproduction.
• Narrow 50° coverage angle for sharp focus.
• Single point balanced mounting for 
 easier and cleaner looking installs.
• Shipped fully assembled; bulk shipping 
 available upon customer request.
• Optional wall-mount bracket available.
• Custom colors and printed decorative 
 and promotional dome covers optional.
App
Applications
Only 20.25” in diameter, SoundTube’s
FPS20 delivers a targeted audio footprint 
for a single listener. Tight coverage, 
wide-range stereo sound and a smaller 
dome make the FPS20 the ideal choice 
for focused audio applications, including 
kiosks, P.O.P. displays, shows, plasma 
displays or anywhere the visual impact 
must be minimized.
Patented Dual-Parabolic™ 
Technology
 SoundTube Entertainment is constantly 
developing new technologies that enhance 
audio product performance. SoundTube 
Entertainment’s innovations are protected 
by multiple U.S. & international patents, 
which explicitly cover SoundTube dome, 
enclosure and dispersion technologies. 
SoundTube Entertainment actively defends 
its patents in order to protect SoundTube 
resellers and end users.
Technical Data
 SoundTube Entertainment strives to 
provide complete and effective technical 
information and data to dealers, engineers 
and designers. All data are available 
from SoundTube Entertainment, or at 
www.soundtube.com. 
1
Frequency response is measured in full space.
2
Continuous power rating, EIA-426-B test.
3
2.83 Volts at a distance of 0.5 meters.
SoundTube continually develops new product innovations and improvements. Updates to existing 
products without prior notice are an example of SoundTube’s drive for constant improvement. 
FPS20
FPS20
Sound-Focusing Stereo Speaker
Technical Information for System Engineers
