- Description
Details
SoundTube CM42-EZs-II 4" In-Ceiling Shallow Backcan Speaker
The SoundTube CM42-EZs-II 4 inch in-ceiling shallow backcan speaker is engineered for applications with limited plenum space incorporating a SoundTube-specific shallow backcan with an installed depth of only 3.5 inches. It has one 4 inch (102 mm) treated fiber woofer with cloth surround and one 0.75 inch (19 mm) silk dome tweeter. Easy-access six-position tap switch for 25/70.7/100-volt and 16 ohm transformer bypass position allows for easy ordering, stocking and installation. Reduced amplification costs with maximum efficiency including 87.5 dB sensitivity and 16 ohm impedance. Superior voice intelligibility with an average coverage angle of 100° (2–10 kHz, independently verified). Cost-effective 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. Incorporates a painted steel grille for lasting durability. Ceramic input terminal accepts up to 10 gauge plenum rated signal wire and includes thermal fuse. Suitable for use in voice alarm applications subject to EU regulations EN60849 and BS5839-8. Clamping allowance from 0.00 in. (0.0 mm) to 1.50 in. (38.1 mm). UL 1480 (UEAY) and 2043, CE (EMC Directive 89/366/EEC, EN55020, EN55013) approved.
- Features
Features
- Engineered for applications with limited plenum space incorporating a SoundTube-specific shallow backcan
- One 4 inch (102 mm) treated fiber woofer with cloth surround and one 0.75 inch (19 mm) silk dome tweeter
- Easy-access six-position tap switch for 25/70.7/100-volt and 16 ohm transformer bypass position allows for easy ordering
- Reduced amplification costs with maximum efficiency including 87.5 dB sensitivity and 16 ohm impedance
- Superior voice intelligibility with an average coverage angle of 100° (2–10 kHz, independently verified)
- Cost-effective 16 ohm settings allows for the use of multiples of two, four, or six speakers in a system
- Incorporates a painted steel grille for lasting durability
- Clamping allowance from 0.00 in. (0.0 mm) to 1.50 in. (38.1 mm)
- UL 1480 (UEAY) and 2043, CE (EMC Directive 89/366/EEC, EN55020, EN55013) approved
- High-quality black or white painted finish. Custom colors available
- Included accessories: Tile bridge, UL-listed 0.5-inch flex conduit clamp, paint shield and two wire nuts
- Specification
Enclosure Properties ABS, Sealed, Steel Enclosure Volume 100 cu in / 1638.71 cu cm Included Accessories Conduit Clamp, Cover Plate, Grille, Paint Mask Source Inputs 4 Pin Ceramic Terminal Coverage Angle (-6dB @ 2kHz) 95° Crossover Frequency 5 kHz Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) 4.3 and 4.2 Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) 5.7dB and 6.2dB Frequency Response (± 10 dB) 125 Hz - 22 kHz Frequency Response (± 3 dB) 160 Hz - 20 kHz Low Frequency Voice Coil 0.5" (12.7 mm) Low Pass Crossover 12 dB per octave 2nd order Max. Ceiling Thickness 0.97" (24.6 mm) Max. Continuous Power RMS 20W Max. Program Power 40W Minimum Impedance (Ω Ohms) 15.5Ω Network Type: High Pass 6 dB per octave 1st order Nominal Impedance (Ω Ohms) 16Ω Tweeter Driver 0.75" Silk Dome Woofer Driver 4" Treated Fiber Cone w/ Cloth Surround Sensitivity dB @ 1W/1M 87.5dB Sensitivity dB @ 2.83V/1M 84.5dB Tap Selector Rotary Switch Transformer Options 25 / 70.7 / 100 V, 16 Ohm direct Transformer Taps (25V/70.0V/100V) 2.5W/20W/20W Visible Diameter 7.5" (190.5 mm) Visible Height 0.33" (8.4 mm) Backcan Dimensions (H x Dia) 3.75" (95.3 mm) x 5.78" (146.8 mm) Carton Dimensions (H x W x D) 5.5" (139.7 mm) x 9" (228.6 mm) x 9" (228.6 mm) Shipping Weight 5 lbs(2.27 kg) - Documents
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