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Technical data, EASE
™
plots, SoundTubeSPEC
™
software & product downloads available at www.soundtube.com
SM590i
Surface-Mount Speaker
Preliminary Technical Information for System Engineers
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
Spectrometry (TDS). Performance,
development and data acquisition tools
include: Gold Line TEF 20, CLIO, LMS,
LEAP, and proprietary modeling soft
-
ware. 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 133
mm (5.25 in) low-frequency transducer
and a 25 mm (1 in) high-frequency
transducer with a frequency-dividing
network installed in a ported enclosure.
The low-frequency voice coil diameter
shall be 25 mm (1 in).
Performance specifications of a typi
-
cal production unit shall be as follows:
Useable frequency response shall extend
from 61 Hz – 22 kHz (-10 dB, half space,
no external equalization). Measured
sensitivity (2.83 Volt input, 1 meter) shall
be at least 89.5 dB. The speaker shall
have a nominal impedance of 8 Ohms
and shall be available for 25/70.7/100
Volt modes with voice coil/8 Ohm
direct. The frequency-dividing network
shall have a crossover frequency of 3
kHz with a slope of 12 dB per octave
(second order) for the high-pass filter.
Rated power capacity shall be at least
80 Watts continuous power (RMS), and
conforms to EIA-426-B testing. Maxi
-
mum continuous output at 1 meter shall
be 108.5 dB.
The low-frequency transducer shall
have a polypropylene cone with butyl
rubber surround. The high-frequency
transducer shall be constructed of alu
-
minum material and incorporate a high-
SPL horn.
Installation for the SM590i shall
be by proprietary & corrosion-resis
-
tant captured-ball mounting system.
SoundTube’s tool-free captured-ball
mounting system incorporates a locking
zinc alloy lever attaching to a cast-alu
-
Polar Plots
minum ball. For seismic and safety redun-
dancy, a secondary aircraft cable shall
be included and attached to the speaker
chassis via
¼ - 20 bolt. The external wir-
ing input connector shall be a 4-pin, 5 mm
Euroblock for 8 Ohm or distributed sys
-
tems and shall accept from 10 – 22 gauge
wire.
The system shall be for indoor/outdoor
applications and shall have a weather-
resistant terminal boot covering all
wire connectors. The enclosure shall be
constructed of injection-molded, glass-
reinforced ABS. The grille shall be con
-
structed of iridite-plated, powder-coated
aluminum for lasting performance.
Overall cabinet dimensions shall be no
more than 316.9 mm (12.48 in) in height by
216.6 mm (8.53 in) in width by 305.1 mm
(12.01 in) in depth (including SM bracket).
The SM590i shall include mounting hard
-
ware, Euroblock connector & terminal
weather boot.
The system shall be the SoundTube
SM590i with mounting hardware for both
low and high impedance applications.
10,000 Hz
8,000 Hz4,000 Hz
2,000 Hz
1,000 Hz
500 Hz250 Hz
125 Hz