PS-C41RT 4" Value-Positioned Medium In-Ceiling Speaker Sonance Professional Series PS-C41RT is a 70V/100V/8 Ohm selectable In-Ceiling Speaker that features a one-piece bezel-less grille that is magnetically secured and allows for a one-step painting process to simplify installation and minimize visual distraction. The optional Square Grille Adapter allows speakers to match the aesthetic of square downlights and HVAC grilles to achieve continual sight lines. The PS-C41RT features a 4” polypropylene cone, butyl rubber surround woofer combined with a coaxially mounted .75” cloth dome, ferrofluid cooled high tweeter. The PS-C41RT features extremely flat response for natural musically and intelligibility for voice, making it perfect for shopping malls, airports, schools, corporate, government, or anywhere an affordably-priced, aesthetically pleasing, and excellent sounding loudspeaker is required. A full-fidelity transformer delivers uncompromised sonic performance in either high (70V, 100V) or low (8 Ohm) impedance. Additionally, the Sonance PS-C41RT is certified for UL2043, UL1480, as well as EN54-24. Specs Frequency Range (-10dB) - 70Hz – 25khz Frequency Range (-3dB) - 95Hz – 20kHz Power Capacity - 60 Watts Continuous Program Power | 30 Watts Continuous Pink Noise Nominal Sensitivity - 87dB Nominal Coverage Angle - 120 degrees conical coverage Directivity Factor (Q) - 7.6 Directivity (DI) - 8.1dB Rated Maximum SPL - 102dB @ 1 meter (3.3 feet) average, 108dB peak Rated Impedance - 8 Ohms nominal, 6 Ohms minimum Transformer Taps - 25W, 12.5W, 6.3W and (3.2W @70V) Crossover Point - 3000Hz Overall Dimensions - 6.3" x 6.5” deep (160mm x 165mm) Cut Out Dimensions - 5.875" Diameter (149mm) Net Weight - 5.875" Diameter (149mm) Shipping Weight - 5.0lbs (2.27kg) ea Unit of Measure - 21.55lbs (9.77kg) pair