Narrow baffle design Three 3" Motorola piezo super tweeters Two 15" woofers with high temperature voice coils Super high density 4"x 12" horn 1/4" phono jack Shielded speaker terminals Wheels and handles for easy carrying Carpet finish and plastic corners Power handling: 10-275 Watts RMS 8 ohms 18"w x 13.75"d x 44.25"h (457.2 x 349.25 x 1123.95 mm) Frequency response: 30Hz-20kHz Sensitivity: 102dB