SoundTube - IPD-CM52-BGM-II - In-Ceiling 5.25" IP Speaker (Single) Dante -enabled coaxial in-ceiling speaker incorporating one ⁵.²⁵" (¹³⁴ mm) polypropylene woofer with rubber surround and one ⁰.⁷⁵" (¹⁹ mm) silk dome tweeter. Broad - Beam Ring technology and a tuned port on the baffle provide smooth off-axis performance, mid-range clarity and bass response to ⁶⁵ Hz (-¹⁰ d - B). - E / Po - E+ switch. May also be powered via a ²⁴V DC barrel connector for non-Po - E installations. Configuration and zoning of the speaker are accomplished via software. Mounting hardware is included and features SoundTube 's Speed - Wing constant-tension fixed-wing mounting system, which accommodates material thicknesses ranging from ⁰. ⁰³⁵" (⁰.⁹ mm) to ². ³⁸" (⁶⁰.⁴mm). Color-coded (orange) tile bridge, UL listed conduit clamp and paint shield are included.