Soundtube 8" treated fibre cone rapid install Shallow backcan

The white CM82-EZS-II-WH 8" Coaxial Shallow Backcan In-Ceiling Speaker from SoundTube Entertainment incorporates an 8" polypropylene driver with a butyl rubber surround in a sealed drawn steel backcan. This speaker delivers a high-quality response from a frequency range of 65 Hz to 22 kHz, -10 dB. Engineered for applications with limited plenum space, this speaker features a SoundTube-specific shallow backcan with an installed depth of 3.5 inches.

The CM82-EZS-II-WH Speaker features a constant-tension, fixed-wing mounting system with a 21-gauge steel tile bridge ensuring rapid and secure installation in any sheet-rock or drop-tile application. It also features 6-position tap switch for 25, 70.7, and 100V applications with transformer bypass position. The speaker is developed specifically for paging and background music applications such as hotels, education, healthcare, retail stores, restaurants, airports, churches, or boardrooms.

Engineered for applications with limited plenum space incorporating a SoundTube-specific shallow backcan with an installed depth of 3.5"

8" polypropylene woofer with butyl rubber surround and one 1" silk dome tweeter

Easy-access, 6-position tap switch for 25/70.7/100V and 16 ohms; transformer bypass settings

16 ohm settings allows for the use of multiples of two, four, or six speakers in a system using a standard amplifier without a transformer

Maximum sensitivity of 88 dB

Integrated sealed enclosure

Optimum voice intelligibility with an average coverage angle of 105° (2 to 10 kHz, independently verified)

Incorporates a painted steel grille with rust inhibitor for durability

Can be installed on ceilings with thickness ranging from 0.04 to 1.60"

UL 1480 (UEAY), 2043, cUL, and CE (EMC Directive 89/366/EEC, EN55020, EN55013) approved

White paint finish

System Type 8" coaxial, in-ceiling, sealed (64 W transformer for 25/70.7/100 V or transformer bypass)

Impedance 16 ohms (nominal) 

Tweeter 1.0" (2.5 cm) silk

Woofer 6.5" (16.5 cm) treated fiber

Sensitivity 2.83 V/m: 85 dB

1 W/m: 88 dB 

Frequency Response -3 dB: 109 Hz to 18 kHz

-10 dB: 82 Hz to 22 kHz 

Power Consumption Program Power: 128 W

Continuous Power RMS: 64 W 

SPL Maximum 106 dB @ 3' (1 m) 

Coverage Angle -6 dB @ 2 kHz: 105°

-6 dB @ 10 kHz: 35°

Average from 2 to 10 kHz: 105°

Directivity Factor 5.2 (averaged 100 Hz to 10 kHz); 6.8 (2 kHz)

Directivity Index 5.5 dB (averaged 100 Hz to 10 kHz); 8.3 dB (2 kHz)

Tap Selector 6-position rotary switch with transformer bypass position

Low Frequency Driver 8" (203 mm) polypropylene cone, butyl rubber surround (transducer)

High Frequency Driver 1.0" (2.5 cm) silk dome tweeter (transducer)

Low Frequency Voice Coil 1.0" (2.5 cm)

Crossover Frequency 3.0 kHz

Network Type Low Pass: 6 dB per octave, 1st order

High Pass: 6 dB per octave, 1st order

Enclosure Material Drawn steel backcan with ABS baffle

Grille Material Steel with painted finish

Inputs 4 position ceramic terminal strip

Transformer Taps At 70.7 V, output: 64 W (106 dB), 32 W (103 dB), 16 W (100 dB), 8 W (97 dB), and 4 W (94 dB)

At 100 V, output: 64 W (106 dB), 32 W (103 dB), 16 W (100 dB), and 8 W (97 dB)

25 V Output: 8 W (97 dB), 4 W (94 dB), 2 W (91 dB), 1 W (88 dB), and 0.5 W (85 dB)

Approvals UL (UL 1480 (UEAY) and 2043 approved), CE, and RoHS

Dimensions Backcan Diameter: 9.7" (24.6 cm)

Backcan Height: 3.8" (9.5 cm)

Visible Diameter: 11.8" (29.9 cm)

Visible Height: 0.3" (8.6 mm)

Mounting Hole Diameter: 10.5" (26.7 cm)

Minimum to Maximum Ceiling Thickness: 0.04" (0.9 mm) to 1.6" (4.1 cm)

Weight 7.0 lb (3.2 kg)