KRK 12sHO Active Subwoofer

Active Sub Woofer

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.

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£1,149.00 £957.50
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KRK’s 12sHO powered subwoofer is the ideal high output choice for professional studios, where ultra-accurate bass extension and maximum sound levels are necessitated. Utilising the KRK12sHO is an uncompromising method of examination for the depths of your mix, powered by a massive 400 watt amplifier and a reinforced version of KRK's signature Kevlar woofer.

Subwoofers enable the monitoring of the essential low frequency range and create the possibility for the use of smaller main monitors, making them a great solution for rooms or mixing environments where space is at a premium.

All studios are improved by the deployment of a sub to monitor low frequency content - subsonic frequencies can be heavily used in a wide range of musical genres. Production studios need to be able to detect and correct problems like exterior noise, microphone rumble, unwanted low frequency components and vibrations thanks to the proliferation of home theatre systems, as well as commercial systems in clubs and cinemas. This increase in home and project mastering means many theoretically great pieces of music are being poorly represented when played back on a larger system. If they cannot be heard precisely they cannot be mixed precisely.

Having a capable subwoofer is critical when it is paired 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 deliver the bass that would normally be created by the monitors -- that alone can surpass 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
More Information

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 and Weight

(H x W x D): 20" (508 mm) x 20" (508 mm) x 22.48" (571mm)
Weight: 109.7 Lbs. (49.7 Kg.)

Download 12sHO User Manual

Download Sub Woofer Set Up Instructions Manual