The SoundTube CM82-EZ-II is the next-generation version of the CM82-EZ, designed for high-efficiency, full-range audio in commercial and large-space installations. Featuring an 8” polypropylene woofer with butyl rubber surround and a 1” silk dome tweeter, this in-ceiling speaker delivers superior voice intelligibility and wide coverage.
The CM82-EZ-II is built with a sealed enclosure, optimized for maximum efficiency and reduced amplification costs. Its six-position tap switch with transformer bypass supports 25V, 70.7V, and 100V systems and offers 16 Ω settings, enabling the use of multiple speakers on a single amplifier without the need for additional transformers.
SoundTube CM82-EZ-II Key Features
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8” polypropylene woofer with butyl rubber surround
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1” silk dome tweeter for smooth high-frequency response
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Next-generation design with improved features and performance
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Easy-access six-position tap switch for 25/70.7/100V and 16 Ω transformer bypass
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Sealed enclosure for enhanced efficiency
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Maximum efficiency with 89 dB sensitivity and 16 Ω impedance
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Superior voice intelligibility with a 95° average coverage angle (2–10 kHz)
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Painted steel grille with rust inhibitor for lasting durability
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Ceramic input terminal supports up to 10-gauge plenum-rated signal wire and includes thermal fuse
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Adaptable to ceiling thicknesses from 0.04” (0.9 mm) to 1.60” (40.6 mm)
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UL 1480 (UEAY) and 2043, cUL, CE (EMC Directive 89/366/EEC, EN55020, EN55013) approved
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Suitable for voice alarm applications subject to EU regulations EN60849 and BS5839-8
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Included accessories: tile bridge, UL-listed 0.5” conduit clamp, paint shield, and two wire nuts
Applications
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Airports, transportation hubs, and stadiums
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Boardrooms, conference centers, and corporate venues
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Churches, schools, and educational facilities
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Hotels, restaurants, and retail stores
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Any commercial space requiring high intelligibility background-to-foreground audio
SoundTube CM82-EZ-II Specifications
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Low Frequency(-10 dB)
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65 Hz – 22 kHz
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Sensitivity
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89 dB
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Power Capacity RMS
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64 W
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Max SPL dB @ 1 M
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107 dB
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Nominal Impedance
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16 ohm
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Transformer Options
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25 / 70.7 / 100 Volt option with a 16 Ohm direct
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Tweeter
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1.0 in. Silk
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Woofer
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6.5 in. Treated fiber
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Connections
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4 position ceramic terminal strip
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Visible Height
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8.6 mm (0.34 in)
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Visible Diameter
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298.5 mm (11.75 in)
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Back can Height
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146.1 mm (5.75 in.)
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Back can Diameter
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245.6 mm (9.67 in)
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Weight
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4.1 kg (9.0 lbs.)
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Shipping Weight
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4.5 kg (10.0 lbs.)
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Optional Accessory
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Color-coded (green) pre-construction bracket (AC-CMEZ6/8-PCB), junction box (AC-CM-EZ-JBOX)
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Colors
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Black / White, or Custom
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