SoundTube IW31-EZ In-Wall Speaker Master Pack (8 Units) in Black

The IW31-EZ is a premium full-range 3-inch in-wall speaker for applications requiring 8 ohm or distributed audio solutions. The IW31-EZ incorporates a low profle grille with a total visible footprint of a 5 inch square and an integrated backcan and driver design for an ultra compact installations in wall plates. The speaker includes a rapid installation, blind-mount fixed-wing mounting mechanism with constant tension design affixing to wall thicknesses ranging from 0.1 inch (2.5 mm) to 1.5 inch (38.1 mm). 


The in-wall speaker includes a six-position tap switch with a transformer bypass position. Mounting hardware is included and features a fast and secure constant tension Speed Wing mounting system. All components in the IW31-EZ are completely weatherized for indoor and outdoor applications. Conduit connector, paint mask and wire nuts are included.

  • ColorBlack
    Manufacturer’s Suggested Retail Price 
    Manufacturer’s CategoryIW In-Wall Series
    Height5 in / 127 mm
    Width/Diameter5 in / 127 mm
    Shipping Weight41 lbs / 18.6 kg
    Carton Height17.5 in / 444.5 mm
    Carton Length16.5 in / 419.1 mm
    Carton Width15.5 in / 393.7 mm
    CertificationsCE, RoHS, UL1480A, UL2043
    Enclosure PropertiesABS Glass Fiber Reinforced, Injection Molded, Sealed
    Enclosure Volume60 cu in / 983.22 cu cm
    Included AccessoriesConduit Clamp, Grille, Hole Template, Paint Mask, Wire Nuts
    Optional AccessoriesPre-Construction Bracket (AC-CM31-PCB)|Theft-Resistant Grille (AC-IW31-TRG)|Black Grille (GRL-IW31-BK)|Junction Box (AC-CM-EZ-JBOX)
    Source InputsWire Leads
    Backcan Height3.5 in / 88.9 mm
    Coverage Angle (-6dB @ 2kHz)45°
    Cutout Width/Diameter4.25 in / 108 mm
    Directivity Factor (Q) (Averaged 100Hz – 10kHz, @ 2kHz)4.5 and 2.8
    Directivity Index (DI) dB (Averaged 100Hz – 10kHz, @ 2kHz)5.5dB and 4.4dB
    Frequency Response (± 10 dB)115 Hz – 22 kHz
    Frequency Response (± 3 dB)190 Hz – 14 kHz
    Grille PropertiesAluminum, Powder-Coated
    Low Frequency Voice Coil0.75 in / 19 mm
    Magnetically BoostedNo
    Max. Ceiling Thickness1.5 in / 38.1 mm
    Max. Continuous Power RMS20W
    Max. Program Power40 W
    Minimum Impedance (Ω Ohms)8 Ω
    Minimum Ceiling Thickness0.1 in / 2.5 mm
    Mounting Depth3.5 in / 88.9 mm
    Nominal Impedance (Ω Ohms)8 Ω
    Fullrange Driver3″ Polypropylene driver with butyl rubber surround
    Sensitivity dB @ 1W/1M85.5 dB
    Sensitivity dB @ 2.83V/1M85.5 dB
    Tap SelectorRotary Switch
    Transformer Options25 / 70.7 / 100 V, 8 Ohm direct
    Transformer Taps (25V/70.0V/100V)1.3W/10W/30W