12sHO

High Output Powered Studio Subwoofer

Large and powerful nearfield 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.

12sHO Front
12sHO Angle
12sHO Rear
12sHO Front preview
12sHO Angle preview
12sHO Rear preview

KRK Subwoofers

Bypass Footswitch

Mix with confidence. The bypass footswitch control allows you to quickly mute the sub and send full-range audio to your recording monitors.

Heavy Duty Enclosure

KRK Subwoofers feature reinforced MDF enclosures for maximum strength and durability. Never let a spilled beer or wild ninja roundhouse kick stop your mixing session again.

Front-firing Port

We engineered the front port to provide low frequency extension while reducing boundary coupling. The unique shape is optimized to avoid port turbulence.

Plays well with others

Dedicated crossover and optional High-pass filter bypass means that our subwoofers are the perfect compliment to powered monitors. From mixing and mastering to sound design, broadcast and production work - KRK has you covered.

12sHO Features

  • 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
  • 92db 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

Reviews

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.

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.

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.

KRK Subwoofers Compared 8S 8s 10S 10s 12S 12s 12sHO 12sHO
Configuration Front Loaded, Vented Subwoofer Front Loaded, Vented Subwoofer Front Loaded, Vented Subwoofer Front Loaded, Vented Subwoofer
System Type Active Subwoofer Active Subwoofer Active Subwoofer Active Subwoofer
Low-Frequency 8" Glass Aramid Composite Woofer 10" Glass Aramid Composite Woofer 12" Woven Kevlar Woofer 12" Woven Kevlar High Performance Woofer
Frequency Response 35Hz - 133Hz 34Hz - 130Hz 32Hz - 139Hz 29.2Hz - 160Hz (L/R inputs), 29.1Hz - 211Hz (LFE input)
Max Peak SPL 112.8 dB 117.2 dB 119.9 dB 123 dB
Amplifier Class D Class D Class D Class A/B
Power Output (Continous) 109 Watts @ 1% THD+N @ 46Hz 160 Watts @ 1% THD+N @ 44Hz 220 Watts @ 1% THD+N @ 44Hz 400 Watts @ 1% THD+N @ 100Hz
Signal to Noise Ratio 92 dB 92 dB 92 dB 92 dB
Amplifier Distortion (THD + N) ≤ 0.1% @-3dB Of Max Power Output 35Hz-133Hz ≤ 0.12% @-3dB Of Max Power Output 31Hz-110Hz ≤ 0.3% @-3dB Of Max Power Output 29Hz-97Hz ≤ 0.1% @-3dB Of Max Power Output 20Hz-200Hz
Input Impedance 9.4 KΩ Balanced, 9.2 KΩ Unbalanced 9.4 KΩ Balanced, 9.2 KΩ Unbalanced 9.4 KΩ Balanced, 9.2 KΩ Unbalanced 10 KΩ Balanced or Unbalanced
Ground Lift On/Off On/Off On/Off On/Off
Low Pass Frequency 30Hz-205Hz 28Hz-156Hz 26Hz-130Hz 60Hz-160Hz
HPF Bypass With Footswitch Only With Footswitch Only With Footswitch Only With Footswitch Only
Footswitch Optional Optional Optional Included
Phase 0 or 180 Degrees 0 or 180 Degrees 0 or 180 Degrees Rotatable Phase + Polarity Switch
System Volume -30 dB to +6 dB -30 dB to +6 dB -30 dB to +6 dB -30 dB to +6 dB
Indicators Power/Standby, Sub On/Mute, HPF Bypass Power/Standby, Sub On/Mute, HPF Bypass Power/Standby, Sub On/Mute, HPF Bypass Power, Protection, Limiter
Input Connectors XLR L/R, 1/4" TRS L/R, RCA L/R, 1/4" Footswitch XLR L/R, 1/4" TRS L/R, RCA L/R, 1/4" Footswitch XLR L/R, 1/4" TRS L/R, RCA L/R, 1/4" Footswitch Balanced XLR for Left & Right inputs
LFE Input N/A N/A Balanced TRS Balanced XLR
Output Connectors XLR L/R, 1/4" TRS L/R, RCA L/R XLR L/R, 1/4" TRS L/R, RCA L/R XLR L/R, 1/4" TRS L/R, RCA L/R Balanced XLR for Left & Right
AC Power Input 100VAC-240VAC 100VAC-240VAC Selectable 110V-120V / 220V0240V Selectable 110V-120V / 220V0240V
Enclosure 15mm Reinforced MDF 15mm Reinforced MDF 18mm Reinforced MDF 18mm & 36mm Reinforced MDF
Finish Black Vinyl Wrap Black Vinyl Wrap Black Vinyl Wrap Textured Paint
Grill Steel Perf Steel Perf Steel Perf N/A
Dimensions (H x W x D) 13.3" (339mm) X 11.57" (294mm) X 14.25" (362mm) 15" (382mm) X 14" (355mm) X 16.06" (408mm) 18.11" (460mm) X 15.94" (405mm) X 22.64" (575mm) 20" (508 mm) X 20" (508 mm) X 22.48" (571mm)
Weight 26.01 lb. (11.8 kg) 34.5 lb. (15.6 kg) 66.5 lb. (30.1 kg) 109.7 lb. (49.7 kg)
Downloads
Manual (EN,FR,ES,DE)
Manual (JA)
Manual (ZH)
Manual (EN,FR,ES,DE)
Manual (JA)
Manual (ZH)
Cutsheet
Manual (EN,FR,ES,DE)
Manual (JA)
Manual (ZH)
Cutsheet
Manual (EN, FR, ES)
Manual (ZH)
Resources
KRK Subwoofer Placement & Setup Guide | Subwoofer test tones

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