KEF Kube 10 MIE 10″ powered subwoofer

The KEF Kube 10 MIE might look unassuming, with its sleek black exterior and modest size. Inside that cabinet, however, is a custom 10″ woofer with high-end electronics that, all together, weighs in at an impressive 34+ pounds. That might give you a hint as to the muscular low-end that awaits you.