The IW500b is a 5.25-inch, coaxial, inwall loudspeaker that delivers effective low-end response (69 Hz, -10 dB) and optimal off-axis performance (2 to 10 kHz, independently verified). SoundTube’s proprietary BroadBeam® waveguide tweeter system delivers consistent highperformance audio across the operating bandwidth. The IW500b speaker design incorporates a low-profile grille and sixposition tap switch with transformer bypass position. Mounting hardware is included and features a fast and secure optimally engineered constant-tension mounting system and an integrated backcan for maximum efficiency and applications where UL approval is required. A pre-construction bracket is offered as an optional accessory.

Specifications: IW500iMounting hardware included
System Type

5.25" Coax, in wall, sealed (32 Watt transformer for 25/70.7/100 Volt or voice coil direct)

Nominal Impedance8 ohm
Impedance (minimum)5.1 ohm
Sensitivity dB @ 2.83V/1M88.0dB
Sensitivity dB @ 1W/1M (2)88.0dB
Frequency Response (± 3 dB)72 Hz - 22 kHz
Max. Program Power150w
Max. Continuous Power RMS75w
Max. Power SPL @ 1 M107.0dB
Tap Selector6 Position rotary switch with transformer bypass
70.7 Volt Transformer Taps33w / 103.0dB
100 Volt Transformer Taps (dB)33w / 103.0dB
25 Volt Transformer Taps (dB)5w / 95.0dB
Coverage Angle (Ave from 2 to 10 kHz) rawhorizontal
ColorsWhite only (paintable)
InputsSpring terminal
Height (SM = Height)300.7 mm / 11.83 in
Diameter (SM = Width)219.5 mm / 8.64 in
SM Depth (Including Bracket)99.1 mm / 3.90 in
Weight3.6 kg / 7.93 lb
Shipping Weight4.5 kg / 9.92 lb
Packaging1 per box
Regulatory - ULnot planned
Regulatory - CEApproved
Regulatory - IPnot planned