KRK S12.4

Building on KRK's legacy of sonic accuracy and performance, the new KRK subwoofers deliver tight, accurate, and defined bass, while the highly efficient Class D power amplifiers dramatically increase transient response, control, and punch. The redesigned cabinets feature a more compact profile compared to their predecessors, allowing for improved placement flexibility and a timeless design that provides a more professional aesthetic.

The new KRK Studio Subwoofers feature a wealth of connectivity options that interface with just about any manufacturer's studio monitors, mixers, and/or audio interfaces. With an exclusive bypass control feature, users can send full-range audio to their monitors at the click of an optional footswitch without having to move out of the monitoring sweet spot to turn off the subwoofer. This allows for instant comparisons with (and without) the subwoofer's contributions to the sound. Additionally, polarity and input sensitivity controls allow for phase coherence and level-matching to enhance the quality of your mixes.

Beautiful in it's simplicity, the subwoofers have returned to the traditional pass through design with stereo inputs and outputs for all XLR, ¼" and RCA connectors. Unique to the new design are 4 preset crossover points (50Hz, 60Hz, 70Hz and 80 Hz) which, coupled with the deep extension of as much as 23 Hz, allow the sub to do most of the heavy lifting. The new front side tuned ports, removable grill and built in iso pad round out all of the logical features one would expect in a subwoofer but often fall short.

Additional refinements to the KRK subwoofers include modestly improved low-frequency extension, improved porting for enhanced low-frequency phase response and less port noise, as well as a four-position crossover frequency selection switch, making it easy to adjust the subwoofer's settings to optimally match existing monitors. Designed with an inverted dust cap and removable all-steel grille option with reinforced MDF enclosure, KRK's latest generation of subwoofers offer a durable solution with excellent driver protection. Additionally, the woven aramid composite woofer provides a rigid and lightweight driver for optimal sound quality and a front-firing port allows for placement near walls without interference from a rear-firing port, increasing the subwoofer's overall flexibility.

• 12" Kevlar Composite Woofer: Produces deep, controlled bass with precision for professional mixing and mastering.

• 220W Class D Amplifier: Offers powerful and efficient performance with enhanced transient response and low heat generation.

• Four Crossover Settings: Easily matches your sub to various studio monitors for seamless integration.

• Front-Firing Bass Port: Improves low-frequency clarity and allows flexible room placement.

• Bass Extension Down to 23Hz: Delivers ultra-low frequencies for a full, immersive listening experience.

• Subwoofer Bypass Footswitch Support: Instantly switch to full-range audio without turning the sub off (footswitch sold separately).

• Reinforced MDF Cabinet: Strong, low-resonance construction for accurate sound and long-term durability.

• Multiple Input/Output Options: Includes XLR, 1/4" TRS, and RCA connectors for wide gear compatibility.

• Polarity and Sensitivity Controls: Tailor the sub's performance to your room and monitor setup.

• Ground Lift Switch: Prevents unwanted hum from ground loops.

GENERAL SPECIFICATIONS:

• Active front loaded vented subwoofer

• Single unit not a pair

• Model S12.4

DRIVER:

• LF Driver 12 inch Kevlar aramid composite woofer

PERFORMANCE:

• Frequency Response 26 Hz to 97 Hz

• Max Peak SPL 119.9 dB

• Power Output Continuous 220 Watts at 1 percent THD plus N at 44 Hz

• Amplifier Class D

• Amplifier Distortion THD plus N less than or equal to 0.3 percent at minus 3 dB of max power output from 29 Hz to 97 Hz

• Signal to Noise Ratio 92 dB

CONNECTIVITY:

• Input Connectors XLR left and right 1 quarter inch TRS left and right RCA left and right 1 quarter inch footswitch

• Output Connectors XLR left and right 1 quarter inch TRS left and right RCA left and right

• Input Impedance 9.4 kilo ohms balanced 9.2 kilo ohms unbalanced

• LFE Input Balanced TRS

• Ground Lift On Off

• HPF Bypass with footswitch only

• Footswitch Optional

CONTROLS AND FEATURES:

• Optimized four position crossover control

• Polarity and input sensitivity controls

• Power and standby indicator

• Bypass footswitch control for sub and crossover filter

CONSTRUCTION:

• Enclosure 18 mm reinforced MDF

• Finish Black vinyl wrap baffle black paint

• Hardware EVA isolation pad

PHYSICAL DIMENSIONS:

• Height 16.375 inches or 416 mm

• Width 23.875 inches or 606 mm

• Depth 14.375 inches or 365 mm

• Weight 62.5 lbs or 28.3 kg

POWER REQUIREMENTS:

• AC Power Input Selectable 110V to 120V or 220V to 240V