8" Coated Woofer with High Temperature Voice Coil Four 3" Cone Mid/High Drivers for Enhanced Fidelity 1" Top-Mounted Tweeter for Crisp Vocal Reproduction PTC Protection Circuitry Protects Against Blown Tweeters Max Power Output:150W Peak (100W RMS) Impedance:8 Ohm Sensitivity:91dB Freq.Response:20Hz-25Khz 17.5" (W) x 11" (D) x 12.25" (H) 25 lbs each 27.5" (L) x 21.5" (W) x 16" (H) 58 lbs "Banana" speaker connector / Bare wire screw connectors