The KRK Systems S12.4 Powered Studio Subwoofer features a custom 12″ Kevlar® composite woofer that delivers tight, defined bass frequencies down to 23Hz, complemented by a Class-D power amplifier for enhanced transient response and punch.

It includes a versatile four-position selectable crossover to seamlessly integrate with existing monitors, along with an exclusive bypass-control feature for full-range audio to monitors without subwoofer deactivation.

Designed with a rugged MDF enclosure and front-firing port, it minimizes resonance and extends low frequencies while reducing turbulence. Universal connectivity options (XLR, 1/4″ TRS, RCA) and adjustable controls for polarity, input sensitivity, and ground lift ensure flexible setup and optimal performance in professional studio environments.

Specifications:

• Configuration: Front Loaded, Vented Subwoofer
• System Type: Active Subwoofer
• Low-Frequency Transducer: 12″ Kevlar® Aramid Composite Woofer
• Frequency Response: 26Hz – 97Hz
• Max Peak SPL: 119.9 dB
• Amplifier: Class D, 220 Watts @ 1% THD+N @ 44Hz
• Signal to Noise Ratio: 92 dB
• Amplifier Distortion: ≤ 0.3% @ -3dB of Max Power Output 29Hz – 97Hz
• Input Impedance: 9.4 KΩ Balanced, 9.2 KΩ Unbalanced
• Ground Lift: On/Off
• HPF Bypass: With Footswitch Only (optional)
• Input Connectors: XLR L/R, 1/4″ TRS L/R, RCA L/R, 1/4″ Footswitch
• LFE Input: Balanced TRS
• Output Connectors: XLR L/R, 1/4″ TRS L/R, RCA L/R
• AC Power Input: Selectable 110V-120V / 220V-240V
• Enclosure: 18mm Reinforced MDF
• Finish: Black Vinyl Wrap, Baffle – Black Paint
• Dimensions (H x W x D): 16.375″ (416 mm) x 23.875″ (606 mm) x 14.375″ (365 mm)
• Weight: 62.5 lb. (28.3 kg)