The Force i Sub makes it easy and cost-effective to add solid, low-end response to any sound system. Thanks to its very solid enclosure and a powerful, cast frame 18-inch woofer, the Force i Sub can add substantial bass response to many two-way full-range speakers. An important feature of the Force i Sub is that it is designed to be paralleled with the Force i two-way full-range speaker system on a single amplifier channel. The Force i sound system combining the Force i two-way, Force i Sub and Eliminator i power amplifier rivals larger and much more expensive biamped sound systems for overall sound quality and output capability. The Force i Sub?s powerful 18-inch woofer has a four-layer voice coil and nearly two inches of total excursion capability for tremendous air moving capability with reliability. Force i Sub?s woofer was designed to have less midrange response so that its input filter reduces the mids and highs to allow parallel operation with a full-range system. Force i Sub?s RoadWoodTM enclosure is much stronger and lighter than particleboard or MDF and has excellent acoustical properties too. The Force i Sub has a built-in metal stand mount and comes with a removable 34-inch steel pole to elevate EV two-way systems. It also comes with rear-mounted casters and a 3-stage, luggage-style expandable metal handle to make moving easy. The handle can also be removed to prevent rattles during use or to prevent damage in transportation. The enclosure is finished ...