Phase Technology CM500i Patented SoundTube Technologies, TechnicalData and Specification Tools

CM500i	In-Ceiling Speaker
	Preliminary Technical Information for System Engineers

Patented SoundTube

Technologies

SoundTube Entertainment is con- stantly developing new technologies that enhance audio product per- formance. SoundTube Entertainment innovations are protected by multiple U.S. & international patents, which explicitly cover SoundTube dome, enclosure and dispersion technologies. 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, engi- neers and designers. All data are avail- able from SoundTube Entertainment 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 133

mm(5.25 in) low-frequency transducer and a 25 mm (1.0 in) high-frequency transducer with a crossover network installed in the enclosure. The low-fre- quency voice coil diameter shall be 25 mm (1.0 in).

Performance specifications of a typi- cal production unit shall be as follows: Useable frequency response shall extend from 55 Hz – 22 kHz (-10 dB, half space, no external equalization). Measured sensitivity (2.83 Volt input, 1 meter) shall be at least 88.5 dB. The speaker

shall have a nominal impedance of 8 Ohms and be available for 25, 70.7 & 100 Volt modes with voice coil/8 Ohm direct. The frequency-dividing network shall have a crossover frequency of 3 kHz with slopes of 12 dB per octave (2nd order) for both low & high pass filters. Rated power capacity shall be at least 75 Watts continu- ous power (RMS) and conform to EIA-426- B testing. Maximum continuous output at 1 meter shall be 107.5 dB.

The low-frequency transducer shall have a polypropylene cone with rubber surround. The high-frequency transducer shall be constructed of aluminum with a proprietary BroadBeam® waveguide.

Installation for the CM500i shall be by 2-screw, blind-mount, constant tension winged assembly and shall attach to ceil- ing thickness tolerances ranging from

6.4mm (0.25 in) to 42.9 mm (1.69 in). The fixed-wing assembly shall be constructed of glass-filled ABS material. The external wiring input connector shall be a 4-pin,

5 mm Euroblock for 8 Ohm or distributed systems and shall accept from 10 – 22 gauge wire.

Polar Plots

125 Hz 250 Hz 500 Hz 1,000 Hz

2,000 Hz 4,000 Hz 8,000 Hz 10,000 Hz

Technical data, EASE™ plots, SoundTubeSPEC™ software & product downloads available at www.soundtube.com