CM890i

In-Ceiling Speaker

Preliminary Technical Information for System Engineers

is an audio system with fewer speakers, reduced power needs, shorter installation time and cost savings on shipping and labor.

Patented SoundTube

Technologies

SoundTube entertainment is consis- tently developing new technologies that enhance audio product performance. SoundTube Entertainment innovations are protected by multiple U.S. and international patents, which explicitly cover SoundTube dome, enclosure mounting and dispersion technolo- gies. 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, engineers and designers. All data are available from SoundTube Entertain- ment 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. EASEdata are acquired through an automated TEF 20/Outline/EASEinterface.

EASE™ Data 3-D polar plots.

SoundTubeSPEC™ – Proprietary

SoundTube speaker placement software.

Architectural Specifications

The loudspeaker shall consist of a 203

mm(8 in) low-frequency transducer and a high frequency transducer with a 1” exit and a frequency-dividing network installed in a ported enclosure. The low- frequency voice coil diameter shall be 34 mm (1.36 in).

The performance specifications of a typical production unit shall be as fol-

lows: Useable frequency response shall extend from 63 Hz – 20 kHz (-10 dB, no external equalization). Measured sensitiv- ity (2.83 Volt input, 1 meter) shall be at least 95 dB. The speaker shall have a nomi- nal impedance of 8 Ohms and available for 25/70.7/100 Volt modes with a voice coil/8 Ohm direct. The frequency-dividing network shall have a crossover frequency of 2.4 kHz with a slope of 12 dB per octave (2nd order). Rated power capacity shall be at least 125 Watts continuous power (RMS), and shall conform to EIA-426-B testing. Maximum continuous output at 1 meter shall be 116 dB.

The low-frequency transducer shall have a treated fiber cone and cloth sur- round.

Installation for the CM890i shall be by 2-screw blind mount, constant ten- sion winged assembly and shall attach to ceiling thickness tolerances ranging from 6.4 mm (0.25 in) to 42.9 mm (1.69 in). The external wiring input connector shall be a 4-pin, 5 mm Euroblock connec- tor for 8 Ohm or distributed systems and shall accept from 10 – 22 gauge wire. The maximum backcan dimension shall be no more than 201.7 mm (7.94 in) in height

Polar Plots

N/A

Technical data, EASEplots, SoundTubeSPECsoftware & product downloads available at www.soundtube.com

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Phase Technology CM5890i Patented SoundTube Technologies, Technical Data Specification Tools, Architectural Specifications