Vivolink In-Ceiling Speaker is ideal for commercial audio installations. The integrated backbox delivers rich, powerful bass, while the adjustable tweeter ensures precise sound direction and optimal coverage. 2-Way 6.5" in-ceiling speaker with plastic back can Frequency response: 45Hz - 20kHz Woofer: 6.5” polypropylene Tweeter: 1” silk dome Power: 40W @ 8 ohm Transformer tapping's: 40W/20W/10W/ 5W/2.5W(100V/70V) Sensitivity: (1W/1m): 91 dB SPL Grill feature: Frameless magnetic grill Plastic back cover (back can) included Dimensions: (Ø x Depth): 232 x 170 mm Color: white Weight: 2.3kgs