Home Theater demands earth-shattering bass response. SpeakerCraft BassX series of floor standing subwoofers incorporate long throw woofers, which deliver the deepest possible bass response, extending down to the 20Hz range. These high power subwoofers boast a 150 watt robust amplifier. Each subwoofer is designed for huge bass response, easy system setup and flexibility. They feature line level inputs to connect to most any receiver or preamp, a continuously variable low pass crossover so you can adjust the subwoofer to match the bass response of your main speakers, adjustable phase switch and a proprietary SpeakerCraft bass boost circuit. They are equipped with a fixed high-pass crossover circuit to cut off the bass to the front (main) speakers so the upper bass will not overlap, thereby avoiding booming. With front-mounted controls, full shielding, twin front firing ports and clean responsive sound, installers will love hooking these up. Cabinets yearn to be stuffed and the room begs to be rocked with BassX subwoofers.