Description
The IW31-EZ is a compact 3 inch in-wall full-range speaker designed for fixed-install audio systems. It serves both 8 ohm stereo circuits and distributed 25/70.7/100V systems when used with the transformer accessory. The enclosure integrates the driver and backcan to minimize wall depth while maintaining audio performance.
Key features include a 3.0 inch polypropylene driver with butyl rubber surround and fully weatherized components for indoor and outdoor use. The speaker offers a six-position tap selector with a transformer bypass option to support low-impedance or constant-voltage systems. Installation is simplified by the constant-tension SpeedWing mounting system and included mounting hardware.
Performance specifications include a sensitivity of 85.5 dB and a frequency response of 190 Hz to 14 kHz (-3 dB), with extended response to 115 Hz to 22 kHz at -10 dB. Power handling is specified as 20 W RMS continuous and 40 W program, delivering a maximum SPL of 98.5 dB at 1 meter. Directivity metrics show Q and DI figures averaged across the midband to assist coverage planning.
Connectivity uses a hardwire input and the unit supports transformer taps for 25/70.7/100V lines when the transformer accessory is fitted. The six-position tap rotary switch includes a transformer bypass position for direct 8 ohm connection. Regulatory approvals include UL 1480 and 2043, and the unit is CE and RoHS approved.
The IW31-EZ is suitable for background music, paging, and foreground applications in hospitality, retail, education, and outdoor sheltered areas. Its shallow 3.5 inch backcan and 5 inch square visible footprint make it practical where wall depth is limited. Corrosion-resistant powder-coated aluminum grille and paint mask allow discreet aesthetic integration.
Installation is straightforward with the blind-mount fixed-wing SpeedWing mechanism that clamps to wall thicknesses from 0.1 inch to 1.5 inch. The steel backcan and ABS baffle provide durable mounting and weather resistance for open-air or semi-exposed locations. Overall build quality and UL approvals support reliable long-term operation in professional AV installations.