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12' Active Studio Subwoofer

  • KRK 12sHO Active Subwoofer 2
  • KRK 12sHO Active Subwoofer 3
£1,399.00 Inc VAT
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Quick Overview

The KRK 12sHO is a 12' Active Studio Subwoofer that features a Front-firing Port, a Kevlar 12" Driver and Thermal and Overload / Clip Protection.

  • Description
  • Additional Information

KRK 12sHO Active Subwoofer Product Description

The KRK12sHO powered subwoofer is the perfect High Output choice for professional studios, where ultra-accurate bass extension and maximum sound levels are required. Powered by a massive 400 watt amplifier and a strengthened version of our signature Kevlar woofer, the KRK12sHO is the no-compromise way to hear what is happening in the depths of your mix. Subwoofers allow you to use smaller main monitors, make it possible to monitor the essential low frequency range and can be a great solution for space-challenged control rooms or mixing environments.

While subsonic frequencies are heavily implemented in some musical genres, all studios benefit from the use of a sub to monitor this low frequency content. With the prevalent use of home theater systems, as well as commercial systems in clubs and cinemas - production studios require the capability to identify and correct problems such as unwanted low frequency components, exterior noise, microphone rumble and vibrations. The increase of home and project mastering means many potentially great pieces of music are being poorly represented when played back on a larger system. When dealing with subsonic frequencies if they cannot be heard accurately they cannot be mixed accurately.

Having an incredibly capable subwoofer is critical when it is combined with powerful near-field monitors, such as the Exposé or a VXT8 driven to high sound pressure levels. In a stereo configuration the subwoofer will have to produce the bass that would normally be generated by the monitors -- that alone can exceed the headroom of an ordinary sub. In a surround sound configuration the subwoofer has to reproduce all of the low-frequency information from five or more channels as well as the demanding bass content of the LFE channel. These challenging applications can place demands far exceeding the capabilities of normal low frequency drivers and power amplifiers. This is where the performance of the KRK12sHO shines.


  • Curved Baffle Curved front plate design virtually eliminates diffraction distortion
  • Front-firing Port provides low frequency extension while reducing boundary coupling and the unique shape is optimized to avoid port turbulence
  • Bypass Footswitch Control allows you to defeat the sub and provide full range audio to your recording monitors for use with a standard latching 1/4 inch mono footswitch
  • Kevlar 12" Driver - High Excursion woven Kevlar driver cone
  • Thermal and Overload / Clip Protection to prevent damage
  • Input Sensitivity on rear of unit allows a high resolution gain range, labeled are positions for MUTE, +6dBu and -8dBu

Technical Specifications

  • Configuration:Front loaded, vented subwoofer
  • System type:Active Subwoofer
  • Low-Frequency:12" woven Kevlar High Performance woofer
  • Frequency Response:
  • 29.2Hz - 60Hz - 160Hz (L/R inputs), 29.1Hz - 211Hz (LFE input)
  • Max Peak SPL:123 dB
  • Amplifier Class:Class A-B
  • Power Output:400 Watts Continuous @ 1% THD+N @ 100Hz
  • SNR (signal to Noise Ratio):92dB
  • Amplifier Distortion (THD+N): ≤ 0.1% @-3dB of Max Power Output 20Hz - 200Hz
  • Input Impedance (Ohms):10 kΩ Balanced or unbalanced
  • Ground Lift:On / Off
  • Low Pass Frequency:60Hz to 160Hz
  • HPF bypass:with footswitch only
  • Footswitch:Included
  • Phase:Rotatable Phase + Polarity Switch
  • System Volume:-30dB to +6dB
  • Indicators:Power, protection, limiter
  • Input Connectors:
  • Balanced XLR for Left and Right Inputs
  • LFE input:Balanced XLR
  • Output Connectors:
  • Stereo Balanced XLR for left and right, full range with foot switch engaged, 80Hz HP without foot switch engaged.
  • AC Power Input: Selectable 110V-120V / 220V-240V
  • Enclosure Construction: 18mm and 36mm reinforced MDF
  • Finish: Textured Paint
  • Port Configuration: Front Firing Quad Concentric Slot Ports
  • Finish: Textured Paint
  • Grille: N/A
  • Dimensions (H x W x D):20" (508 mm) x 20" (508 mm) x 22.48" (571mm)
  • Weight: 109.7 Lbs. (49.7 Kg.)
  • Accessories Shipped with Product
  • Footswitch for bypass operation, with remote indication of bypass (clip and limit TBD)
  • Cable for footswitch (5m)
  • Feet - Rubber and Spikes

KRK 12sHO Active Subwoofer Additional Information

Brand KRK
Condition New
EAN 00816654002754