The word Combo, usually implies wimpy electronics, and second rate speakers. Not true with the 700RB Series Combos. These amplifiers use the same electronics as the 700RB, and the same high performance woofers as our RBH cabinets! You get Bi-Amp Sound, 380+50 Watts (225W to internal woofer), even Speakon connectors. They share the same great hardware used on our RBH cabinets like massive custom tooled corners, 16ga steel grills, and all Birch construction. The cabinets are beveled allowing them to play up right, or rocked back for use in tight situations.