Regular price$3,999.99

Auto Subwoofer EQ


Unleash your home theater

Create the very best home theater experience with a powered subwoofer from Power Sound Audio. Energize your room with fast, dynamic bass and cinema quality sound.

-The absolute best-in-class performance from an American made subwoofer. The S7201 is a high output, high performance powered subwoofer destined to set the new standard in home theater bass.

-The S7201 subwoofer is powered by a 4000W RMS (8000W PEAK) built-in amplifier. A DSP based feature board includes the essential controls to properly integrate the subwoofer into your system.

-The Baltic birch plywood enclosure is heavily braced and assembled with rabbet joints for strong structural integrity. The enclosure is finished with a non-reflective and extremely durable textured material. The amplifier is mounted on the rear baffle.

-The S7201 houses four 18 inch subwoofer drivers, which are capable of moving massive amounts of air. The 1.75 inch surround and poly cotton semi-progressive, high excursion spider allow the cone to move more than 2 inches peak to peak. The cast aluminum frame is mounted to the extremely linear and dynamic motor system, which provides the power to drive the cone in a symmetrical motion.
Design Sealed
Drivers Four 18" High Excursion
Powered Yes
Amp 4000W RMS (8000W PEAK)
Enclosure CNC machined Baltic birch plywood
Frequency Response 15Hz-180Hz +/-3dB
In-Room Extension 6Hz-10Hz
Size (DxWxH) 36.5" x 22" x 55.5"
Weight 295 lbs


  • Amplifier Power: 4000W RMS (continuous), 8000W Peak (dynamic)
  • Amplifier Topology: Innovative post-filter feedback class-D topology, achieves ruler-flat frequency response, low distortion and very high damping across the whole audio band
  • Uses latest generation power MOSFET transistors and highly optimized output stage for up to 95% efficiency, allowing quiet fan-less operation up to unprecedented power levels
  • Full featured protection: DC, overload, low impedances, shorts, under/over-voltage, overheating, etc.
  • Includes gentle soft-start and long-term power limiter to reduce the chances of tripping breakers
  • 120VAC (optional 120VAC-240VAC for an additional charge)
  • Unbalanced Inputs: Left and Right RCA
  • Balanced Input/Output: XLR input and XLR loop output.
  • On, Auto, Off selector
  • Gain control
  • Time delay(phase) control
  • Crossover control
  • Room size control
  • Custom DSP(digital signal processing) enables superior engineering refinement
  • LED indicators for standby and power mode

  • Cabinet

  • Sealed Enclosure
  • Reactive force canceling driver array
  • Super durable, black sand textured finish
  • Precision machined CNC panels
  • Rigid Baltic birch plywood baffles
  • Heavily braced
  • Rear mounted amplifier
  • USA manufactured rubber feet
  • Dimensions (DxWxH): 36.5"x22"x55.5"
  • Weight: 295 lbs
  • Made in the USA

  • Woofer

  • Four Power Sound Audio proprietary 18” drivers
  • Extended and vented pole geometry
  • Vented back plate to maximize air flow
  • Extremely linear and dynamic motor system
  • Epoxy reinforced cone neck/apex joint
  • Concentric foam surround, treated for longevity
  • Highly treated, rigid paper cone body
  • Die-cast rigid aluminum frame
  • Three inch diameter, four layer copper voice coil wound on a rigid multi-layer aluminum former with Kapton heat shielding
  • Fatigue limiting designed, silver alloy lead wires
  • Single poly cotton semi-progressive, high excursion spider
  • Paper outer dust cap with acrylic coating
  • Mass loading cap that also strengthens the cone body
  • Under spider ventilation which aids power handling and improves power compression
  • Assembled in the USA

  • S7201 Frequency Response

    The frequency response graph shows how the subwoofer will sound for a given input frequency or tone. Accurate reproduction of the source material is achieved with a flat frequency response as shown in the graph.

    S7201 Compression

    The compression graph indicates how the output of the subwoofer changes as the input signal increases.

    16Hz - 25Hz: 124.1 dB
    31Hz - 50Hz: 137.3 dB
    63Hz - 100Hz: 142.4 dB
    16Hz - 100Hz: 137.2 dB

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