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SoundTube SM31-EZ, 3" Surface Mount Speaker in Black / White (Each)

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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). IP-Rating: IP64.

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)|White Transformer (AC-SM31-XFMR-WH)|White Wall Plate (AC-SM31-MP-WH)|White Grille (GRL-RS31-WH)
Source Inputs Terminal Strip
IP Rating IP64
TAA Compliant (Trade America) No
BAA Compliant (Made in USA) No
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
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

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