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Technical data, EASE
™
plots, SoundTubeSPEC
™
software & product downloads available at www.soundtube.com
Patented SoundTube
Technologies
SoundTube Entertainment is con-
stantly developing new technologies
that enhance audio product perfor-
mance. SoundTube Entertainment inno-
vations are protected by multiple U.S. &
international patents, which explicitly
cover SoundTube dispersion, enclosure
& dome technologies. SoundTube Enter-
tainment actively defends its patents in
order to protect SoundTube resellers and
end users.
Technical Data and
Specification Tools
Technical Data
SoundTube Entertainment strives to
provide complete and effective technical
information and data to dealers, engi-
neers and designers. All data are avail-
able from SoundTube Entertainment or
at www.soundtube.com.
Data Acquisition
All performance data acquired at
SoundTube’s Technical Measurement
Center (TMC) are analyzed using a
variety of standard measurement tech-
niques, including Measured Length
Sequence (MLS) and Time Delay Spec-
trometry (TDS). Performance, develop-
ment and data acquisition tools include:
Gold Line TEF 20, CLIO, LMS, LEAP,
and proprietary modeling software.
EASE™ data are acquired through
an automated TEF 20/Outline/EASE™
interface.
EASE™ Data
– 3-D polar plots.
SoundTubeSPEC™
– Proprietary
SoundTube speaker placement software.
Architectural Specifications
The loudspeaker shall consist of a 254
mm (10.0 in) low-frequency transducer
with a low-pass filter installed in the
ported enclosure. The low-frequency voice
coil diameter shall be 35.0 mm (1.38 in).
Performance specifications of a typi-
cal production unit shall be as follows:
Useable frequency response shall extend
from 40 Hz – 300 Hz (-10 dB, half space,
no external equalization). Measured
sensitivity (2.83 Volt input, 1 meter) shall
be at least 93.5 dB. The speaker shall
have a nominal impedance of 4 Ohms
100.0
90.0
dBSPL
80.0
70.0
60.0
50.0
20
100
1K
10K
Hz
20K
-180.0
-108.0
-36.0
36.0
108.0
Deg
180.0
50.0
40.0
Ohm
30.0
20.0
10.0
0.0
10 100 1K 10K Hz 20K
-108.0
-36.0
36.0
108.0
180.0
Deg
252.0
Impedance
Phase
Phase/Impedance Reponse
Frequency Response
RS1001i-ll
Open-Ceiling Speaker
Technical Information for System Engineers