S12.4

Powered Studio Subwoofer

The S12.4 powered studio subwoofer builds upon KRK’s legacy for sonic accuracy and stellar performance. The custom-made, Kevlar® woofer delivers ultra-tight, defined bass, while the Class-D power amplifier dramatically increases transient response, control, and punch. The four-position selectable crossover lets you adjust the subwoofer setting easily to your existing monitors.

Pairing the S12.4 with KRK or another studio monitor delivers an optimized listening and mixing experience with extended low end, while the exclusive bypass-control feature provides full range audio to the monitors without switching off the subwoofer. The powerful S12.4 subwoofer doesn’t just deliver precise, ultra-low bass and a rich feature set: it’s the next dimension in subwoofer performance.

S12.4 Front
S12.4 Angle
S12.4 Rear
S12.4 Front preview
S12.4 Angle preview
S12.4 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.

S12.4

S12.4 Features

  • 12" Kevlar® Composite Woofer
  • Bass extension to 23Hz with a max SPL of 119.9 dB
  • Footswitch control enables/disables sub and crossover filter (footswitch not included)
  • Redesigned cabinet with a lower profile and front-firing bass port
  • Powerful, lightweight Class D amplification
  • Optimized four-position crossover control
  • Universal connectivity: XLR, 1/4" TRS, and RCA inputs and outputs
  • Polarity and input sensitivity controls
  • Ground lift switch prevents ground loops

Reviews

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.

A solid-sounding, high quality sub, that's a worthwhile addition to any studio's monitoring set-up.

We found that the S12.4 did a very good job being neither boomy nor muddy, but still bringing out clear bass and thump.

KRK Subwoofers Compared S8.4 S8.4 S10.4 S10.4 S12.4 S12.4 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" Kevlar® Aramid Composite Woofer 12" Woven Kevlar® High Performance Woofer
Frequency Response 34.5Hz - 133Hz 30Hz - 110Hz 26Hz - 97Hz 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
HPF Bypass With Footswitch Only With Footswitch Only With Footswitch Only With Footswitch Only
Footswitch Optional Optional Optional Included
Indicators Power/Standby Power/Standby Power/Standby 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 15 mm and 18 mm Reinforced MDF 15 mm and 18 mm Reinforced MDF 18mm Reinforced MDF 18mm & 36mm Reinforced MDF
Finish Black Vinyl Wrap, Baffle - Black Paint Black Vinyl Wrap, Baffle - Black Paint Black Vinyl Wrap, Baffle - Black Paint Textured Paint
Hardware EVA Isolation Pad EVA Isolation Pad EVA Isolation Pad N/A
Dimensions (H x W x D) (H x W x D): 11" (279 mm) x 16.125" (410 mm) x 11.5" (292 mm) (H x W x D): 13.4375" (341 mm) x 18.875" (479 mm) x 12.1875" (310 mm) (H x W x D): 16.375" (416 mm) x 23.875" (606 mm) x 14.375" (365 mm) 20" (508 mm) X 20" (508 mm) X 22.48" (571mm)
Weight 26.5 lb. (12 kg.) 35 lb. (15.88 kg.) 62.5 Lb. (28.3 kg.) 109.7 lb. (49.7 kg)
Downloads
Manual (EN,FR,ES,DE,JA,ZH) Manual (EN,FR,ES,DE,JA,ZH) Manual (EN,FR,ES,DE,JA,ZH) Cutsheet
Manual (EN, FR, ES)
Manual (ZH)
Resources
KRK Subwoofer Placement & Setup Guide | Subwoofer test tones

Where To Buy

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