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.

Specifications

Color	White
UPC	752830446489
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
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