User Guide

from SoundTube Entertainment, or at
www.soundtube.com.
Technical data and downloads include:
EASE™ data – 3-D polar plots
Tech Sheets – Technical information and
architectural specs for system engineers.
Data Acquisition
All performance data acquired at
SoundTube’s Technical Measurement Center
(TMC) are analyzed using a variety of
standard measurement techniques, includ-
ing Maximum Length Sequence (MLS) and
Time Delay Spectrometry (TDS). Perfor-
mance, development and data acquisitions
tools include: Gold Line TEF 20 Suite,
CLIO, LMS, LEAP, and proprietary model-
ing software.
Da
Data for Other SoundTube
Products
Also available: Sales & installation
information for all SoundTube speaker sys-
tems, including open-ceiling, in-ceiling, sur-
face-mount, in-ground and sound-focusing
speakers.
Arc
Architectural Specifications
The loudspeaker shall consist of a 133 mm
(5.25 in) low-frequency transducer and a 25
mm (1.0 in) high-frequency transducer with
a frequency-dividing network installed in
the enclosure. The low-frequency voice coil
diameter shall be 25 mm (1.0 in). Sound
waves from the low- and high-frequency
drivers shall be reflected from a 781 mm
(30.75 in) Dual-Parabolic™ sound dome.
Performance specifications of a typical
production unit shall be as follows: Usable
frequency response shall extend from
95 Hz – 20 kHz. The loudspeaker shall be
available in either voice coil/4 Ohm direct
or 70.7/100 Volt models, and equipped
with a corrosion-resistant binding post
for pre-selected impedance modes. Taps
should 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), and 32
W @ 70.7 V (tap position not used @ 100
V). Transformer options are factory preset
at 8 Watt, unless otherwise specified at time
of order. The frequency-dividing network
shall have a crossover frequency of 5 kHz.
Rated power capacity of the components
and network shall be at least 50 Watts conti-
nous RMS.
Frequency Response (unequalized)
Phase Response
Impedance Response
Frequency Response on-axis in full space (4π).
SPL, 1W, 1M (dB)
Frequency (Hz)
FP633
FP633
Sound-Focusing Speaker
Technical Information for System Engineers
Technical data, EASE
™
plots, SoundTubeSPEC
™
software & product downloads available at www.soundtube.com