SoundTube CM-EZ-II, 3" to 8" In Ceiling Speaker in Black / WHite
by SoundTube
SKU ST-CM31-EZ-BK
SoundTube CM-EZ-II Coaxial In-Ceiling Speaker in Black /White
Reduced amplification costs and maximum efficiency 89.0 dB sensitivity, 16 ohm impedance and a sealed enclosure. Superior voice intelligibility with an average coverage angle of 95 (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 with rust inhibitor for lasting durability. Ceramic input terminal accepts up to 10 gauge plenum rated signal wire and includes thermal fuse.
| Manufacturer | SoundTube |
|---|---|
| Manufacturer's Category | CM-EZ Economical In-Ceiling |
| Shipping Weight | 3.7 lbs / 1.68 kg |
| Carton Height | 8.25 in / 209.55 mm |
| Carton Length | 8 in / 203.2 mm |
| Carton Width | 7.25 in / 184.15 mm |
| Certifications | CE, RoHS, UL1480A, UL2043 |
| Enclosure Properties | ABS Glass Fiber Reinforced, Injection Molded, Sealed |
| Enclosure Volume | 60 cu in / 983.22 cu cm |
| Included Accessories | Conduit Clamp, Grille, Paint Mask, Wire Nuts, Choose Between a Tile Bridge or Pre-Construction Bracket |
| Optional Accessories | White Grille (GRL-CM31-WH)|Tile Bridge (AC-CM31-TB)|Pre-Construction Bracket (AC-CM31-PCB)|Junction Box (Included with pre-construction bracket) |
| Source Inputs | Wire Leads |
| IP Rating | IP54 |
| TAA Compliant (Trade America) | No |
| BAA Compliant (Made in USA) | No |
| Backcan Diameter | 5.5 in / 139.7 mm |
| Backcan Height | 3.5 in / 88.9 mm |
| Coverage Angle (±6dB @ 2kHz) | 45° |
| Cutout Width/Diameter | 5.5 in / 139.7 mm |
| Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) | 4.5 and 3.5 |
| Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) | 5.3dB and 5.2dB |
| Frequency Response (± 10 dB) | 115 Hz - 22 kHz |
| Frequency Response (± 3 dB) | 190 Hz - 14 kHz |
| Grille Properties | Aluminum, Standard-Flange, Powder-Coated, White, Snap-Fit |
| Low Frequency Voice Coil | 0.75 in / 19 mm |
| Max. Ceiling Thickness | 1.5 in / 38.1 mm |
| Max. Continuous Power RMS | 20W |
| Max. Program Power | 40 W |
| Minimum Impedance (Ω Ohms) | 8 Ω |
| Minimum Ceiling Thickness | 0.1 in / 2.5 mm |
| Nominal Impedance (Ω Ohms) | 8 Ω |
| Fullrange Driver | 3" Polypropylene driver with butyl rubber surround |
| Sensitivity dB @ 1W/1M | 85 dB |
| Sensitivity dB @ 2.83V/1M | 85 dB |
| Tap Selector | Rotary Switch |
| Transformer Options | 25 / 70.7 / 100 V, 8 Ohm direct |
| Transformer Taps Max. Setting (25V/70.7V/100V) | 1.3W/10W/30W |
| Visible Diameter | 6.3 in / 160 mm |
| Visible Height | 0.6 in / 15.2 mm |
| Manufacturer | SoundTube |
|---|---|
| Manufacturer's Category | CM-EZ Economical In-Ceiling |
| Shipping Weight | 10.35 lbs / 4.69 kg |
| Carton Height | 8 in / 203.2 mm |
| Carton Length | 13 in / 330.2 mm |
| Carton Width | 13.25 in / 336.55 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 | Black Grille (GRL-CM6/8EZ-II-BK)|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 | 5.125 in / 130.2 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) | 65 Hz - 22 kHz |
| Frequency Response (± 3 dB) | 125 Hz - 20 kHz |
| Grille Properties | Black, Standard-Flange, Friction-Fit, 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 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 | 10.65 lbs / 4.83 kg |
| Carton Height | 8.25 in / 209.55 mm |
| Carton Length | 13 in / 330.2 mm |
| Carton Width | 13 in / 330.2 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 |
| Optional Accessories | Black Grille (GRL-CM6/8EZ-II-BK)|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 | Black, Standard-Flange, Friction-Fit, 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" Polypropylene Cone w/ Butyl Rubber 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 |
