Includes a 10-watt transformer. One 3 inch (76.1 mm) polypropylene driver with butyl rubber surround. Weatherized components for indoor/outdoor applications. Theft- and corrosion-resistant mounting mechanism with an indexed swivel-joint for precision aiming in any direction. Ultra-low profile ZeroReflection™ ABS enclosure (4 inch diameter by 3.5 inch deep, including mounting plate). Corrosion-resistant, powder-coated aluminum grille. UL 1480 (UEAY) approved. Includes a 10-watt transformer (AC-31-XFMR) that incorporates a 5 position tap switch and a wall plate for installation in a single-gang deep junction box. Includes AC-SM31-MP mounting plate. Transformer does not include 8 ohm bypass.

Specifications: SM31-EZ-TMounting hardware included
Nominal Impedance8 ohm
Impedance (min)8.0 ohm
Sensitivity dB @ 2.83V/1M85.0dB
Sensitivity dB @ 1W/1M (2)85.0dB
Frequency Response (± 3 dB)170 Hz - 14 kHz
Frequency Response (±10 dB)120 Hz - 22 kHz
Max. Program Power40W
Max. Continuous Power RMS20W
Max. Power SPL @ 1 M98.0dB
Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz)4.9 (Averaged 100Hz - 10kHz) 7.1 (2kHz)
Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz)5.1dB (Averaged 100Hz - 10kHz) 8.5dB (2kHz)
Tap Selector5-Position rotary switch (-T model)
70.7 Volt Transformer Taps10w / 95.0dB
100 Volt Transformer Taps (dB)10w / 95.0dB
25 Volt Transformer Taps (dB)1.3w / 86.0dB
Transformer Options25 / 70.7 / 100 Volt
Transducer - Full-Range Driver3" Polypropylene Driver with Butyl Rubber Surround
Coverage Angle (-6 dB @ 10 kHz)43
Coverage Angle (-6 dB @ 2 kHz)70
ColorsBlack or white
Driver - part3" Polypropylene Driver with Butyl Rubber Surround
InputsTerminal strip
Height (SM = Height)110.5 mm / 4.4 in
Diameter (SM = Width)110.5 mm / 4.4 in
SM Depth (Including Bracket)96.8 mm / 3.8 in
Weight0.6 kg / 1.3 lb
Shipping Weight0.9 kg / 2.0 lb
Accessories OptionalTransformer (AC-SM31-XFMR), Mounting Plate (AC-SM31-MP)
Packaging1 per box
Regulatory - ULApproved 1480
Regulatory - CEApproved
Regulatory - RoHSapproved
Regulatory - IPnot planned