Polk VS90-RT Vanishing Series In-Ceiling Speaker DESCRIPTION A big speaker that delivers big sound, yet vanishes into your room's decor. The 90-RT is perfect for use as stealth mains, rears and side surrounds in a high-performance home theatre, or for bringing dynamic sound to alternate zones from your main stereo listening room. DESIGN Broad coverage and dynamic, full-range performance from an extra deep well design with a Cassini oval woofer. Painted to match your décor, Vanishing Series built-in speakers blend in perfectly with their surroundings. SOUND Patented bass venting design smoothly transitions air flow, eliminating turbulence and distortion, for deeper, more efficient bass impact. Smooth funneling for low frequencies around the driver array eliminates “chuffing” for full-range blending, broad coverage, and deep bass. Lower tweeter levels offset reflective surfaces, cutting the level in the exact 4-5kHz band where reflectivity destroys sound quality. Compatible with Polk Audio RTi speakers for seamless blending between traditional and built-in speaker systems. SPECIFICATIONS Tweeter: 0.75” silk polymer composite dome Woofer: 3.25” mineral-filled polypropylene Cabinet: 7” oval mineral-filled polypropylene, dual bandpass bass ports Freq. Response: 43-25,000Hz (-3dB) Sensitivity: 90dB Power Handling: 10-125w Impedance: 8Ω Features: Timbre-matched to RTi-A series, wafer-thin grille, tweeter level adjustment Cutout: 208mm Overall Diameter: 245mm