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.

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
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)

1 Year Warranty