SVS PB-4000 13.5" 1200W Ported Box Subwoofer (Premium Black Ash)

Staggering levels of low-frequency output and subterranean deep bass extension down to 13Hz with an amazing degree of subtlety and finesse to thrill both action movie buffs and audiophiles. Sophisticated DSP technology in the PB-4000 creates three port tuning modes each with individual response curves to achieve the most accurate in-room frequency response possible. Its like having three subwoofers in one. Effortlessly powerful bass that extends far below the limits of human hearing the PB-4000 creates a physical experience with every listening session.

Combines the efficiency of a Class D amplifier design with the ability to move massive amounts of current through the fully discrete MOSFETs enabling immense low frequency output and precise driver control. Put simply outstanding real-world subwoofer performance at all drive levels.

Most advanced digital processor ever used in a subwoofer maintains pinpoint accuracy and pristine sound quality through advanced in-room tuning optimized frequency response curves powerful DSP controls and more.

Maximizes on the subwoofers ability to take control of a room and benefit from the acoustic potential of the space it occupies by tailoring the roll off slope. The effect is accurate frequency response with staggeringly deep in-room extension often as low as 10Hz - without the boominess commonly associated with room gain.

Each response curve for the three port tuning modes; standard extended and sealed is fully configured to the respective mode to achieve perfectly balanced and accurate low frequency response with all tuning preferences.

Allows the amplifier to deliver all the way to the limits of its rated power and maximize on the drivers potential with massive output and no distortion.

Serves as a line conditioner surge suppressor and voltage regulator letting the amplifier deal with wide voltage fluctuations and ensuring the subwoofers operate flawlessly on any household circuit no matter how unstable the incoming current.

An isolated circuit creates a vanishingly low noise floor by eliminating the potential for ground loop hums from outside components resulting in absolute sonic transparency.

SVS 4000 Series drivers handle every watt of the Sledge STA-1200D amplifiers power with precision and control to produce room energizing SPLs and effortless low frequency extension with pinpoint accuracy at all drive levels.

• Dual ferrite magnet motor assembly weighing nearly 40lbs generates immense magnetic force and excursion of the 13.5-inch driver to produce massive low frequency output well below the limits of human hearing.
• Edge wound voice coil with eight-layer aluminum flat wire minimizes distortion and power compression while providing excellent heat dissipation and linearity ensuring precise control.
• Lightweight and rigid composite cone with premium glass fiber dustcap generate massive output with pinpoint accurate frequency response.
• Proprietary injection molded gasket and long-throw parabolic surround ensure longevity and allow extreme excursion and SPLs.