nexus speaker NTPI-341-BT power: 20W/30W impedance: 8 ohms line voltage: 70V/100V AC frequency: 70Hz-18KHz sensitivity: 86dB Woofer: 6.5" (166mm) tweeter: 0.5" (13mm) Mylar dome Cutout Dimensions: 202mm overall Dimensions: 233*95mm