SoundTube ST-CM-EZS-II, 4" to 8", 2-way In Ceiling Speaker in White with Short Can
by SoundTube
SKU ST-CM42-EZS-II-BK
Soundtube CM-EZs-II Coaxial In-Ceiling Shallow Backcan Speaker in Black / White
Engineered for applications with limited plenum space incorporating a SoundTube-specific shallow backcan with an installed depth of only 3.5 inches. 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 (210 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. EN54-24 listed. 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.
| Manufacturer | SoundTube |
|---|---|
| Manufacturer's Category | CM-EZ Economical In-Ceiling |
| Shipping Weight | 5 lbs / 2.27 kg |
| Carton Height | 5.5 in / 139.7 mm |
| Carton Length | 9 in / 228.6 mm |
| Carton Width | 9 in / 228.6 mm |
| Certifications | CE, EN54, RoHS, UL1480A, UL2043 |
| Enclosure Properties | ABS, Sealed, Steel |
| Enclosure Volume | 100 cu in / 1638.71 cu cm |
| Included Accessories | Conduit Clamp, Cover Plate, Grille, Paint Mask, Choose Between a Tile Bridge or Pre-Construction Bracket |
| Optional Accessories | White Grill (GRL-CM42-II-WH)|Tile Bridge (AC-CMEZ42-TB)|Pre-Construction Bracket (AC-CMEZ4-PCB)|Paint Mask (AC-CM-PM4EZ)|Junction Box (AC-CM-EZ-JBOX) |
| Source Inputs | 4 Pin Ceramic Terminal |
| TAA Compliant (Trade America) | No |
| BAA Compliant (Made in USA) | No |
| Backcan Diameter | 5.78 in / 146.8 mm |
| Backcan Height | 3.75 in / 95.3 mm |
| Coverage Angle (±6dB @ 2kHz) | 95° |
| Crossover Frequency | 5.0 kHz |
| Cutout Width/Diameter | 6.5 in / 165.1 mm |
| 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 |
| Grille Properties | Standard-Flange, Magnetic, Powder-Coated, White, Paintable, Steel |
| Low Frequency Voice Coil | 0.5 in / 12.7 mm |
| Low Pass Crossover | 12 dB per octave 2nd order |
| Max. Ceiling Thickness | 0.97 in / 24.6 mm |
| Max. Continuous Power RMS | 20W |
| Max. Program Power | 40 W |
| Minimum Impedance (Ω Ohms) | 15.5 Ω |
| Network Type: High Pass | 6 dB per octave 1st order |
| Nominal Impedance (Ω Ohms) | 16 Ω |
| Tweeter Driver | .75" Silk Dome |
| Woofer Driver | 4" Treated Fiber Cone w/ Cloth Surround |
| Sensitivity dB @ 1W/1M | 87.5 dB |
| Sensitivity dB @ 2.83V/1M | 84.5 dB |
| Tap Selector | Rotary Switch |
| Transformer Options | 25 / 70.7 / 100 V, 16 Ohm direct |
| Transformer Taps Max. Setting (25V/70.7V/100V) | 2.5W/20W/20W |
| Visible Diameter | 7.5 in / 190.5 mm |
| Visible Height | 0.33 in / 8.4 mm |
| Manufacturer | SoundTube |
|---|---|
| Manufacturer's Category | CM-EZ Economical In-Ceiling |
| Shipping Weight | 9.15 lbs / 4.15 kg |
| Carton Height | 6.25 in / 158.75 mm |
| Carton Length | 13 in / 330.2 mm |
| Carton Width | 13 in / 330.2 mm |
| Certifications | CE, EN54, RoHS, UL1480A, UL2043 |
| Enclosure Properties | ABS Glass Fiber Reinforced, Injection Molded, Sealed |
| Enclosure Volume | 350 cu in / 5735.47 cu cm |
| Included Accessories | Conduit Clamp, Cover Plate, Grille, Paint Mask, Choose Between a Tile Bridge or Pre-Construction Bracket |
| Optional Accessories | White Grille (GRL-CM6/8EZ-II-WH)|Tile Bridge (AC-CMEZ6/8-TB)|Pre-Construction Bracket (AC-CMEZ6/8-PCB)|Junction Box (AC-CM-EZ-JBOX) |
| Source Inputs | 4 Pin Ceramic Terminal |
| IP Rating | IPX3 |
| TAA Compliant (Trade America) | No |
| BAA Compliant (Made in USA) | No |
| Backcan Diameter | 9.67 in / 245.6 mm |
| Backcan Height | 3.25 in / 82.5 mm |
| Coverage Angle (±6dB @ 2kHz) | 120° |
| Crossover Frequency | 4.0 kHz |
| Cutout Width/Diameter | 10.5 in / 266.7 mm |
| Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) | 5.1 and 5 |
| Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) | 6.2dB and 7.0dB |
| Frequency Response (± 10 dB) | 75 Hz - 22 kHz |
| Frequency Response (± 3 dB) | 135 Hz - 20 kHz |
| Grille Properties | Standard-Flange, Friction-Fit, White, Paintable, Painted, Steel |
| Low Frequency Voice Coil | 1 in / 25.4 mm |
| Low Pass Crossover | 12 dB per octave 2nd order |
| Max. Ceiling Thickness | 1.6 in / 40.6 mm |
| Max. Continuous Power RMS | 50W |
| Max. Program Power | 100 W |
| Minimum Impedance (Ω Ohms) | 17.9 Ω |
| Minimum Ceiling Thickness | 0.04 in / 0.9 mm |
| Network Type: High Pass | 6 dB per octave 1st order |
| Nominal Impedance (Ω Ohms) | 16 Ω |
| Tweeter Driver | 1" Silk Dome |
| Woofer Driver | 6.5" Treated Fiber Cone w/ Cloth Surround |
| Sensitivity dB @ 1W/1M | 90 dB |
| Sensitivity dB @ 2.83V/1M | 87.5 dB |
| Tap Selector | Rotary Switch |
| Transformer Options | 25 / 70.7 / 100 V, 16 Ohm direct |
| Transformer Taps Max. Setting (25V/70.7V/100V) | 4W/32W/32W |
| Visible Diameter | 11.75 in / 298.5 mm |
| Visible Height | 0.34 in / 8.6 mm |
| Manufacturer | SoundTube |
|---|---|
| Manufacturer's Category | CM-EZ Economical In-Ceiling |
| Shipping Weight | 9.35 lbs / 4.24 kg |
| Carton Height | 6.25 in / 158.75 mm |
| Carton Length | 13.25 in / 336.55 mm |
| Carton Width | 13.25 in / 336.55 mm |
| Certifications | CE, RoHS, UL1480A, UL2043 |
| Enclosure Properties | ABS Glass Fiber Reinforced, Injection Molded, Sealed |
| Enclosure Volume | 350 cu in / 5735.47 cu cm |
| Included Accessories | Conduit Clamp, Cover Plate, Grille, Paint Mask, Choose Between a Tile Bridge or Pre-Construction Bracket |
| Optional Accessories | White Grille (GRL-CM6/8EZ-II-WH)|Tile Bridge (AC-CMEZ6/8-TB)|Pre-Construction Bracket (AC-CMEZ6/8-PCB)|Junction Box (AC-CM-EZ-JBOX) |
| Source Inputs | 4 Pin Ceramic Terminal |
| TAA Compliant (Trade America) | No |
| BAA Compliant (Made in USA) | No |
| Backcan Diameter | 9.67 in / 245.6 mm |
| Backcan Height | 5.75 in / 146.1 mm |
| Coverage Angle (±6dB @ 2kHz) | 40° |
| Crossover Frequency | 3.0 kHz |
| Cutout Width/Diameter | 10.5 in / 266.7 mm |
| Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) | 5.4 and 7.2 |
| Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) | 5.5dB and 8.6dB |
| Frequency Response (± 10 dB) | 65 Hz - 22 kHz |
| Frequency Response (± 3 dB) | 92 Hz - 18 kHz |
| Grille Properties | Standard-Flange, Friction-Fit, White, Paintable, Painted, Steel |
| Low Frequency Voice Coil | 1 in / 25.4 mm |
| Low Pass Crossover | 6 dB per octave 1st order |
| Max. Ceiling Thickness | 1.6 in / 40.6 mm |
| Max. Continuous Power RMS | 64W |
| Max. Program Power | 128 W |
| Minimum Impedance (Ω Ohms) | 17.2 Ω |
| Minimum Ceiling Thickness | 0.04 in / 0.9 mm |
| Network Type: High Pass | 6 dB per octave 1st order |
| Nominal Impedance (Ω Ohms) | 16 Ω |
| Tweeter Driver | 1" Silk Dome |
| Woofer Driver | 8" Treated Fiber Cone w/ Cloth Surround |
| Sensitivity dB @ 1W/1M | 89 dB |
| Sensitivity dB @ 2.83V/1M | 86 dB |
| Tap Selector | Rotary Switch |
| Transformer Options | 25 / 70.7 / 100 V, 16 Ohm direct |
| Transformer Taps Max. Setting (25V/70.7V/100V) | 8W/64W/64W |
| Visible Diameter | 11.75 in / 298.5 mm |
| Visible Height | 0.34 in / 8.6 mm |
