SoundTube SM31-EZ Surface Mount Speaker in White
The SM31-EZ is a premium full range 3 inch surface mount speaker, with overall dimensions smaller than a 4 inch sphere. The speaker incorporates a theft and corrosion resistant mounting mechanism with indexed swivel joint for complete hemispherical aiming.
SM31-EZ speaker components have been weatherized for indoor and outdoor applications. The SM31-EZ is an 8 ohm speaker with an ultra-low profile ZeroReflection™ABS enclosure (4 inch diameter by 3.5 inch deep, including mounting plate).
Color Black Manufacturer’s Suggested Retail Price UPC 752830446380 Manufacturer SoundTube Manufacturer’s Category SM-EZ Economical Surface Mount Height 4.35 in / 110.5 mm Width/Diameter 4.35 in / 110.5 mm Shipping Weight 1.85 lbs / 0.84 kg Carton Height 6.25 in / 158.75 mm Carton Length 6.5 in / 165.1 mm Carton Width 6.25 in / 158.75 mm Certifications CE, RoHS, UL1480A Enclosure Properties ABS Glass Fiber Reinforced, Injection Molded, Sealed Enclosure Volume 60 cu in / 983.22 cu cm Optional Accessories Junction Box (AC-SM31-JBOX)|Black Transformer (AC-SM31-XFMR-BK)|Black Wall Plate (AC-SM31-MP-BK)|Black Grille (GRL-RS31-BK) Source Inputs Terminal Strip Coverage Angle (-6dB @ 2kHz) 43° Directivity Factor (Q) (Averaged 100Hz – 10kHz, @ 2kHz) 4.9 and 7.1 Directivity Index (DI) dB (Averaged 100Hz – 10kHz, @ 2kHz) 5.1dB and 8.5dB Frequency Response (± 10 dB) 120 Hz – 22 kHz Frequency Response (± 3 dB) 170 Hz – 14 kHz Grille Properties Aluminum, Powder-Coated Low Frequency Voice Coil 0.75 in / 19 mm Magnetically Boosted No Max. Continuous Power RMS 20W Max. Program Power 40 W Minimum Impedance (Ω Ohms) 8 Ω Mounting Depth 3.81 in / 96.8 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 Transformer Options 25 / 70.7 / 100 V