Four-way floor standing tower speaker which utilizes a built-in, rear firing powered subwoofer for low frequency reproduction down to a rumbling 28Hz. The slim profile front houses a 1″ polycarbonate tweeter, a 5″ Uni-cone midrange, and a separate 8 woofer. The rear 8 subwoofer is powered by a 120 watt amplifier. They are in excellent condition both functionally and cosmetically. I got them at an estate sale from the original owner.