Sound Tube High-Power Speaker HP8i User manual

© 2004 SoundTube Entertainment, Inc. All rights reserved. REV 07.20.05
Specifications: HP8i-T64 HP8i-SM-T64
Specifications: HP8i-T64 HP8i-SM-T64
System Type 8” 2-way high-power ported (64 Watt transformer or
70.7/100 Volt applications with voice coil/8 Ohm direct)
Frequency Response (-3 dB)
1
88 Hz – 15 kHz
Low Frequency (-10 dB)
1
52 Hz – 17 kHz
Max. Program Power 250 W
Max. Continuous Power RMS
2
125 W
Max. SPL dB @ 1M 116 dB
Sensitivity dB @ 1W/1M
3
95 dB
Impedance 8 Ohm (nominal value)
Tap Selector Selectable via barrier terminal strip
Transformer Taps
70.7 V Output 100 V Output
64 W 113 dB n/a n/a
32 W 110 dB 64 W 113 dB
16 W 107 dB 32 W 110 dB
8 W 104 dB 16 W 107 dB
Coverage Angle (-6 dB @ 2 kHz) 115˚
Coverage Angle (-6 dB @ 8 kHz) 90˚
Directivity Factor (Q) 4.04 (100 Hz to 10 kHz averaged) 6.07 @ 2 kHz
Directivity Index (DI) 5.21 dB (100 Hz to 10 kHz averaged) 7.83 dB @ 2 kHz
Transducers
Low Frequency Driver 1 x 203 mm (8.0 in) concentric coaxial coated fiber driver
High Frequency Driver 1 x 25 mm (1.0 in) compression driver with a
50 mm (2.0 in) titanium diaphragm
Crossover Frequency 1.8 kHz
Network Type
Low Pass 12 dB per octave, 2nd order
High Pass 18 dB per octave 3rd order with protection circuitry
Inputs Corrosion-resistant gold-plated barrier strips
Enclosure Material Engineered glass-fiber reinforced composite
Colors Black or white
Diameter 316 mm (12.43 in)
Length 405 mm (15.95 in)
Net Weight 10.71 kG (23.6 lbs)
Accessories
Optional See installation options on back page
Key Features
Key Features
• High-SPL, high-efficiency system for the
sound reinforcement and PA markets.
• BroadBeamHP®coverage pattern
providing smooth response and high
SPL across the audio spectrum.
• One 203 mm (8.0 in) concentric coaxial
coated fiber driver, 25 mm (1.0 in)
compression driver with a 50 mm (2.0 in)
titanium diaphragm.
• Weatherized components and sealed
input panel for indoor/outdoor
applications.
• Switchable dual input option for either
voice coil/8Ohm direct or 70.7/100
Volt applications.
• Multiple installation hardware
options for overhead and surface-
mount applications.
• Integrated hanging and safety cables
for easier and cleaner-looking installs.
• Fine black or white paint finish.
Applications
Applications
The SoundTube HP8i is a premium 2-
way low-profile, high-efficiency, high-SPL
speaker with BroadBeamHP®technology
providing a wide dispersion pattern for the
sound reinforcement and PA markets.
The HP8i is engineered for installations
requiring full-range background/fore-
ground music plus paging. A smooth and
even coverage pattern makes the HP8i
an ideal choice for use in warehouses,
gyms, aerobic rooms, super stores, theme
parks and other open-ceiling or outdoor
applications where high SPL is required.
Cast Composite Enclosure
Cast Composite Enclosure
SoundTube’s HP8i cast composite enclo-
sure provides a low-resonance platform
with effective self-damping properties for
a clean, tight sound. Compression cast
glass-fiber composite material coupled with
SoundTube’s patented ZeroReflection™
internal shaping provides extreme stiffness,
eliminating internal standing waves and
external diffraction distortions. The result
is accurate sound and tight bass in a com-
mercial speaker.
Te
Te
chnical Data
chnical Data
SoundTube Entertainment strives to pro-
vide complete and effective technical infor-
mation and data to dealers, engineers and
1
Frequency response is measured in full space.
2
Continuous power rating, EIA-426-B test.
3
2.83 Volts at a distance of 1 meter.
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.
HP8i
HP8i
High-Power Speaker
Technical Information for System Engineers

designers. All data are available from
SoundTube Entertainment or at
www.soundtube.com.
Technical data and downloads include:
Tech Sheets – Technical information and
architectural specs for system engineers.
Da
Da
ta Acquisition
ta Acquisition
All performance data acquired at
SoundTube’s Technical Measurement Center
(TMC) are analyzed using standardized mea-
surement techniques, including Measured
Length Sequence (MLS) and Time Delay
Spectrometry (TDS). Performance, develop-
ment, and data acquisition tools include:
Gold Line TEF 20 Suite, CLIO, LMS, LEAP,
and proprietary modeling software.
Da
Da
ta for Other SoundTube
ta for Other SoundTube
Products
Products
Also available: Sales & installation
information for all SoundTube speaker
systems, including open ceiling, in-ceil-
ing, surface-mount, in-ground and sound-
focusing speakers.
Architectural Specifications
rchitectural Specifications
The loudspeaker shall consist of one
203 mm (8.0 in) concentric coaxial coated
fiber driver, 25 mm (1.0 in) compression
driver with a 50 mm (2.0 in) titanium dia-
phragm, and a frequency-dividing network
installed in a dual-ported enclosure. The
low-frequency voice coil diameter shall be
50 mm (2.0 in).
Performance specifications of a typical
production unit shall be as follows: Usable
frequency response shall extend from
52 Hz – 17 kHz. The loudspeaker shall be
available with a switchable transformer/8
Ohm input, and shall be equipped with
corrosion-resistant gold-plated barrier
strips for both impedance modes. Taps
shall be nominally 8 W @ 70.7 V (16 W @
100 V), 16 W @ 70.7 V (32 W @ 100 V),
32 W @ 70.7 V (64 W @ 100 V) and 64 W
@ 70.7 V (tap position not used @ 100 V).
The frequency-dividing network shall have
a crossover frequency of 1.8 kHz. Rated
power capacity of the components and net-
work shall be at least 125 Watts continuous
RMS power.
The enclosure shall be constructed of a
glass-fiber reinforced composite for maxi-
mum performance. The grille shall be con-
structed of UV-resistant ABS plastic material.
Frequency Response
Frequency Response (unequalized)
Phase Response
Phase Response
Impedance Response
Impedance Response
Frequency Response on-axis in full space (4π).
SPL, 1W, 1M (dB)
Frequency (Hz)
Technical data, EASE™plots, SoundTubeSPEC™software & product downloads available at www.soundtube.com
HP8i
HP8i
High-Power Speaker
Technical Information for System Engineers

HP8i
HP8i
High-Power Speaker
Technical Information for System Engineers
Technical data, EASE™plots, SoundTubeSPEC™software & product downloads available at www.soundtube.com
125 Hz
125 Hz
500 Hz
500 Hz
250 Hz
250 Hz
1,000 Hz
1,000 Hz
4,000 Hz
4,000 Hz
8,000 Hz
8,000 Hz
2,000 Hz
2,000 Hz
Horizontal One Octave Polars
Horizontal One Octave Polars

HP8i
HP8i
High-Power Speaker
Technical Information for System Engineers
Mechanical Drawings
Mechanical Drawings
Installation for the HP8i shall be by a
single hanging aircraft cable with a 1/4-20
stud into threaded insert on rear input
panel. The HP8i-SM model shall include
a Surface Mount Bracket kit constructed
of 12-gauge cold rolled steel (CRS) with
electrostatic paint. A safety cable shall be
included as a seismic and safety redun-
dancy system on both models. The external
wiring input connectors shall be barrier-
terminal strip and shall accept from 16 –
22 gauge wire (or wire of any size using a
blade terminal input). Overall cabinet dimen-
sions shall be no more than 316 mm (12.43 in)
in diameter, by 405 mm (15.95 in) in length,
and weigh no more than 10.71 kG (23.6 lbs).
The system shall be the SoundTube HP8i
for both low and high impedance.
SoundTube Entertainment
SoundTube Entertainment
6430 North Business Park Loop
Park City, Utah 84098
Phone [phone]
Fax [phone]
Toll Free 800.647.TUBE
www.soundtube.com
All SoundTube products come
All SoundTube products come
with a 5-year limited warranty
with a 5-year limited warranty .
316 mm (12.43 in)
316 mm (12.43 in)
405 mm (15.95 in)
405 mm (15.95 in)
Installation Options
Installation Options
Hanging/Safety Cable
with SpeedClamp™
(not shown)
AC-CC-10 – 10’ adjustable Combi-Cable AC-CC-20 – 20’ adjustable Combi-Cable
AC-HK-10 – 10’ hanging cable AC-HK-20 – 20’ hanging cable AC-BC1 – Beam Clamp
AC-SL1 – Snap Link AC-FE1 – Forged Eyebolt AC-HP8-GC – Protective Sports Cage Grille
HP8i-SM Surface-Mount speaker system
Optional Accessories
Optional Accessories
482.6 mm (19.00 in)
482.6 mm (19.00 in)
SoundTube Entertainment manufactures a complete line of speakers for:
Open-Ceiling • In-Ceiling • Surface-Mount • Outdoor • Sound-Focusing
Open-Ceiling • In-Ceiling • Surface-Mount • Outdoor • Sound-Focusing
All SoundTube products are designed and engineered in the