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12sHO Powered Studio Subwoofer

12sHO Powered Studio Subwoofer

Quantity: Single Powered Subwoofer

LF Driver: 12"

Wattage: 400 Watts

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Large and powerful near-field studio monitors require a subwoofer that can achieve high sound pressure levels—and KRK’s 12sHO is a powerful, sonically pure addition to any studio setup. Whether for stereo or surround formats, the 12sHO subwoofer reproduces low-frequency detail as well as the LFE channel’s demanding bass content. These challenging applications place demands far exceeding the capabilities of traditional low frequency drivers and power amplifiers, so KRK developed the 12sHO (HO for “High Output”) as the industry solution for all types of demanding mix situations.

Features & Highlights

KRK 12sHO Angle

  • 12" Woven Kevlar® High Performance Woofer
  • Bass Extension to 29Hz with a Max SPL of 123 dB
  • Quad-vented, Front-firing Bass Port
  • 400W Class A-B Power
  • 92 dB Signal to Noise Ratio
KRK 12sHO Controls

  • Combo XLR-1/4"" TRS Inputs with XLR Outputs
  • Dedicated LFE Channel with Combo XLR-1/4" TRS Input
  • Sweepable Crossover Control
  • Bypass Foot Control included
  • Reinforced MDF Enclosure
    • Configuration: Front Loaded, Vented Subwoofer
    • System Type: Active Subwoofer
    • Low-Frequency Transducer: 12" Woven Kevlar® High Performance Woofer
    • Frequency Response: 29.2Hz - 160Hz (L/R inputs), 29.1Hz - 211Hz (LFE input)
    • Max Peak SPL: 123 dB
    • Amplifier: Class A/B
    • Power Output (Continous): 400 Watts @ 1% THD+N @ 100Hz
    • Signal to Noise Ratio: 92 dB
    • Amplifier Distortion (THD + N): ≤ 0.1% @-3dB Of Max Power Output 20Hz-200Hz
    • Input Impedance: 10 KΩ Balanced or Unbalanced
    • Ground Lift: On/Off
    • HPF Bypass: With Footswitch Only
    • Footswitch: Included
    • Indicators: Power, Protection, Limiter
    • Input Connectors: Balanced XLR for Left & Right inputs
    • LFE Input: Balanced XLR
    • Output Connectors: Balanced XLR for Left & Right
    • AC Power Input: Selectable 110V-120V / 220V0240V
    • Enclosure: 18mm & 36mm Reinforced MDF
    • Finish: Textured Paint
    • Hardware: N/A
    • Dimensions (H x W x D): 20" (508 mm) X 20" (508 mm) X 22.48" (571mm)
    • Weight: 109.7 lb. (49.7 kg)
  • "I have used many other subs before but nothing like this one. If you use this sub with a great pair of monitors like the KRK ROKIT 8 or even the KRK VXT8 you will get the best sound system that you can have to mix with. It is truly the best sub you can have for your home studio."

    Audio Fanzine

    "A well-designed collection of subs to cover most studio needs, with some useful features, decent, low-distortion volume output and good low-frequency response."


  • "The 12sHO will extend the low frequency range of any brand of monitors down to 29Hz in an accurate and effortless way and at any listening volume. I especially liked the lighted bypass footswitch jack and cable--a small thing but useful for some of my clients who are new to low frequency extension."

    Barry Rudolph