Sound Tube HPCF8 Manual

© 2004 SoundTube Entertainment, Inc. All rights reserved. REV 07.21.05
Specifications:
Specifications:
HPCF8-T64 HPCF8-8
HPCF8-T64 HPCF8-8
System Type
8” 2-way high-power in-ceiling (voice coil/8 Ohm direct
or 64 Watt transformer for 70.7/100 Volt applications)
Frequency Response (-3 dB)175 Hz – 16.6 kHz
Frequency Response (-6 dB)170 Hz – 17.3 kHz
Low Frequency (-10 dB)152 Hz
Max. Program Power 250 W
Max. Continuous Power RMS2125 W
Max. SPL dB @ 1M 116 dB
Sensitivity dB @ 1W/1M395 dB (half space)
Impedance 8 Ohm (nominal value)
Tap Selector Selectable via tap wires.
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) 5.24 (100 Hz to 10 kHz averaged) 5.85 @ 2 kHz
Directivity Index (DI) 5.37 dB (100 Hz to 10 kHz averaged) 7.67 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 Selectable tap wire
Enclosure Material Steel backcan
Colors Black or white
Backcan Diameter 305 mm (12.0 in)
Backcan Height 254 mm (10.0 in)
Visible Diameter 368 mm (14.5 in)
Visible Height 44 mm (1.75 in)
Net Weight 9.53 kG (21.0 lbs)
Accessories
Included Accessories Tile bridge, backcan & safety cable
Key Features
Key Features
• High-SPL, high-efficiency system for the
sound reinforcement and PA markets.
• BroadBeamHP®wide dispersion pattern
provides smooth off-axis coverage and
reduces overall system costs.
• One 203 mm (8.0 in) concentric coaxial
coated fiber driver, 25 mm (1.0 in) com-
pression driver with a 50 mm (2.0 in)
titanium diaphragm.
• Voice coil/8 Ohm direct & 70.7/100 Volt
model options.
• Includes tile bridge, safety cable
and backcan for ease of ordering
and installation.
• Low-profile design for clean appearance.
• Dual-concentric driver design provides
uniform horizontal coverage.
• Black & white color options.
Applications
Applications
The HPCF8 is a high-SPL flush-mount
speaker with BroadBeamHP® dispersion
technology providing a wide coverage pat-
tern for in-ceiling applications. The HPCF8
is engineered for installations requiring
full-range background and foreground
music plus paging. A smooth and even
coverage pattern makes the HPCF8 an
ideal choice for use in gyms, aerobic rooms,
convention centers, stadiums and other
high-power in-ceiling applications.
Ba
Ba
ckcan
ckcan
HPCF8 in-ceiling speakers are packaged
with grille, tile bridges and backcan. HPCF8
backcan is UL listed for plenum spaces and
houses the electrical sub-assembly and all
connection hardware.
Crosso
Crosso
ver Network
ver Network
An advanced crossover network with
low-phase shift and impedance equaliza-
tion generates a coherent wave front. The
HPCF8 crossover incorporates UL-listed,
military grade glass-epoxy board material
for long-term reliability.
Techn
Techn
ical Data
ical 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.
HPCF8
HPCF8
High-Power In-Ceiling Speaker
Technical Information for System Engineers
1
Frequency response is measured in half 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.

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.
Data for Other SoundTube
ata for Other SoundTube
Products
Products
Also available: sales & installation infor-
mation for all SoundTube speaker systems,
including open-ceiling, in-ceiling, surface-
mount, in-ground and sound-focusing
speakers.
Arch
Arch
itectural Specifications
itectural Specifications
The loudspeaker shall be of in-ceiling
design consisting of one 203 mm (8.0 in) con-
centric coaxial coated fiber driver,
25 mm (1.0 in) compression driver with a
50 mm (2.0 in) titanium diaphragm. 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 – 17.3 kHz. The loudspeaker shall be
available in separate 64 W transformer and
8 Ohm models. Taps shall be nominally
4 W @ 70.7 V (8 W @ 100 V), 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), 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
network shall be at least 125 Watts continu-
ous RMS power.
The HPCF8 backcan shall be con-
structed of formed steel and the baffle of
heat-resistant ABS material. The external
wiring shall be accomplished via hardwire
leads.
The system shall include a steel support
backing plate (tile bridge) to reinforce the
ceiling material and tile support rails. The
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
HPCF8
HPCF8
High-Power In-Ceiling Speaker
Technical Information for System Engineers

HPCF8
HPCF8
High-Power In-Ceiling Speaker
Technical Information for System Engineers
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

HPCF8
HPCF8
High-Power In-Ceiling Speaker
Technical Information for System Engineers
Mechanical Drawings
Mechanical Drawings
rectangular tile bridge [603 mm (23.75 in)
x 413 mm (16.25 in)] which is constructed
of 23-gauge steel that drops into standard
drop-tile ceiling systems.
Overall front face diameter shall not exceed
368 mm (14.5 in); overall depth from the
bottom of the ceiling shall not exceed
44 mm (1.75 in) and shall weight no more
than 9.53 kG (21.0 lbs).
The low-frequency transducer shall have
a treated fiber cone and treated fabric sur-
round that is formulated to resist weather
elements and insects. The high-frequency
transducer shall be constructed of one
25 mm (1.0 in) compression driver with a
50 mm (2.0 in) titanium diaphragm.
The systems shall be the SoundTube
HPCF8-8 for low impedance and HPCF8-
T64 for 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 .
254 mm/10.0 in
305 mm/12.0 in Dia.
305 mm/12.0 in
368 mm/14.5 in Dia.
44 mm/1.75 in
368 mm/14.5 in
603 mm/23.75 in
413 mm/16.25 in
305 mm/12.0 in Dia.
Included Accessories
Included Accessories
Tile Bridge
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 USA.