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Technical data, EASE
™
plots, SoundTubeSPEC
™
software & product downloads available at www.soundtube.com
HP690i
Open Ceiling Speaker
Preliminary Technical Information for System Engineers
Patented SoundTube
Technologies
SoundTube entertainment is consis-
tently developing new technologies that
enhance audio product performance.
SoundTube Entertainment innovations
are protected by multiple U.S. and
international patents, which explicitly
cover SoundTube dome, enclosure
mounting and dispersion technolo
-
gies. SoundTube Entertainment 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,
engineers and designers. All data are
available from SoundTube Entertain
-
ment 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 165
mm (6.5 in) low-frequency transducer
and a high frequency transducer with a
1” exit and a frequency-dividing network
installed in a ported enclosure. The low-
frequency voice coil diameter shall be 34
mm (1.36 in).
The performance specifications of a
typical production unit shall be as follows:
Useable frequency response shall extend
from 62 Hz – 22 kHz (-10 dB, no external
Polar Plots
equalization). Measured sensitivity (2.83 Volt
input, 1 meter) shall be at least 92.5 dB. The
speaker shall have a nominal impedance
of 8 Ohms and be available for 25/70.7/100
Volt modes with a voice coil/8 Ohm direct.
The frequency-dividing network shall have
a crossover frequency of 3 kHz with a slope
of 18 dB per octave (3rd order). Rated power
capacity shall be at least 100 Watts continu
-
ous power (RMS), and shall conform to
EIA-426-B testing. Maximum continuous
output at 1 meter shall be 112.5 dB.
The low-frequency transducer shall have
a treated fiber cone and cloth surround.
Installation for the HP690i shall be by 10’
aircraft cable affixed to the speaker chassis
hook. For seismic and safety redundancy,
a secondary aircraft cable shall be included
and shall attach to the speaker chassis via
hook and cable system. The external wiring
shall be a 4-pin 5 mm Euroblock connector
for 8 Ohm or distributed systems and shall
accept from 10 – 22 gauge wire. The system
shall be for indoor and outdoor applications
and have a weather-resistant terminal boot
covering all wire connections.
The enclosure shall be constructed of
injection-molded, glass reinforced ABS. The
N/A