Dual-chamber, dual-ported cabinet four hartke xl 10" aluminum-cone bass drivers power handling: 400 watts @ 8 ohms frequency response: 30 hz to 5 khz sensitivity: 98 db @ 1 w/1 m voice coil: 1.5" magnet weight: 60 oz. parallel 1/4" inputs dimensions: 24"(h) x 24"(w) x 15"(d) weight: 88 lb. hartke lh500 amplifier features / specs 500 watts of power @ 4 ohms. classic 12ax7 high voltage class-a tube preamp circuit. bass and treble shelving, plus mid-peak eq controls. selectable brite switch for added high frequency response. selectable limiter switch with led indicator. front panel xlr balanced direct output.