cone which is made out of polypropylene and which is built to last over years and years of use. Im not entirely sure their subs belong on this list, but Ill list them for your consideration. Depth of Presentation is important, because your hearing fades as the amber lynn bach creampie frequencies get deeper. It punches way above its class and delivers an unbelievably dynamic experience in any room. Passive subwoofers contain enclosed woofers which must be powered via an external amplifier. Because less air is more "springy" than more air, a large Vas represents a "loose" suspension Vd Peak displacement volume. . Dual voice coils are more expensive, but are also capable of more wiring configurations. SVS products, all, subwoofers, dual Subwoofers, speakers. Based on previous experience, it would likely not make this list in THX Mode, but it might belong in Extended Mode. While it doesnt provide quite the same quality of sound as a high-end woofer, it still provides plenty of value for its price. Available for a very reasonable price, its quite the bargain as far as 12-inch subwoofers. The predecessor to the PB-2000 (my personal favorite so far for performance, price, and size these subs have been produced for a small production run for black friday only! Dual 2000 Series Subwoofers, dual SB-2000, featuring Ultra Series technology, our best-selling subwoofer features an unbeatable combination of low frequency extension, room energizing power, and lightning-fast quickness from a compact cabinet measuring only 14 on all sides. Incredibly powerful and masterfully constructed, its designed not only to shake your car, but last for years of use. They keep air locked in tight, allowing sound to be nuanced, punchy, and responsive. Any higher and youll be dealing with unwanted distortion. Features Technology: Xmax 19mm one-way by. Each coil can be connected to a separate channel on a stereo amplifier, or they can be wired in series or parallel and powered by one amplifier.