Technical data and downloads include:
Tech Sheets – Technical information and
architectural specs for system engineers.
Da
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.
ata for Other SoundTube
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
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
(unequalized)
Phase 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
High-Power In-Ceiling Speaker
Technical Information for System Engineers
