SPECIFICATIONS : Drivers:6.5" low frequency, 1"silk dome high frequency Crossover:2.5 kHz, 2nd-order filters(12 dB per octave) Frequency Response:45 Hz - 18 kHz, ±3dB Power Handling:120 watts program, 200watts peak (using EIA-426A method) Nominal Impedance:4 ohms Sensitivity:88 dB SPL @ 1 watt and1 meter on axis Cabinet:Rubber textured laminate over 5/8" MDF with Alesis SuperPort on rear Dimensions:15"W x 9.25"H x8.5"D Weight:15 lb. each