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SoundTube 3" Surface Mount Speaker in White with Transformer

SoundTube SM31-EZ-T Surface Mount Speaker with Added Transformer in White

The SM31-EZ-T 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-T speaker components have been weatherized for indoor and outdoor applications. The SM31-EZ-T is an 8 ohm speaker with the the AC-SM31-XFMR transformer module to add a 20W transformer and 5 position tap switch that mounts into a single gang deep junction box.

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Manufacturer's Suggested Retail Price$130.00
Manufacturer's CategorySM-EZ Economical Surface Mounts
Height4.35 in / 110.5 mm
Width/Diameter4.35 in / 110.5 mm
CertificationsCCC, CE, RoHS, UL1480
Enclosure PropertiesABS Glass Fiber Reinforced, Injection Molded, Sealed
Enclosure Volume60 cu in / 983.22 cu cm
Optional AccessoriesJunction Box (AC-SM31-JBOX)|White Wall Plate (AC-SM31-MP-WH)|White Grille (GRL-RS31-WH)
Source InputsTerminal Strip
Shipping Weight2.8 lbs / 1.27 kg
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 PropertiesAluminum, Powder-Coated
Low Frequency Voice Coil0.75 in / 19 mm
Magnetically BoostedNo
Max. Continuous Power RMS20W
Max. Program Power40 W
Minimum Impedance (Ω Ohms)8 Ω
Mounting Depth3.81 in / 96.8 mm
Nominal Impedance (Ω Ohms)8 Ω
Fullrange Driver3" Polypropylene driver with butyl rubber surround
Sensitivity dB @ 1W/1M85 dB
Sensitivity dB @ 2.83V/1M85 dB
Tap SelectorRotary Switch
Transformer Options25 / 70.7 / 100 V
Transformer Taps (25V/70.0V/100V)1.3W/10W/30W
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