




KRK S12.4 - 12" Powered Studio Subwoofer
Overview:
The KRK Systems S12.4 Powered Studio Subwoofer delivers deep, controlled bass for professional studio monitoring. Its 12″ Kevlar® Aramid Composite Woofer reaches down to 23Hz, supporting detailed low-frequency reproduction. A 220-watt Class D amplifier provides powerful output and responsive performance. The S12.4 also offers flexible crossover control, bypass functionality, and multiple connection options. Its reinforced MDF enclosure and front-firing port support reliable studio integration.
Key Features:
• 12-Inch Kevlar® Aramid Composite Woofer: The 12″ woofer produces tight, defined bass while extending low frequencies down to 23Hz.
• 220-Watt Class D Amplifier: The efficient amplifier delivers powerful continuous output with responsive, controlled low-frequency performance.
• Four-Position Selectable Crossover: Four crossover positions help integrate the subwoofer with existing studio monitors and monitoring systems.
• Bypass-Control Function: Switch between full-range and sub-assisted monitoring while keeping the main monitors operating normally.
• Front-Firing Port and MDF Enclosure: The reinforced MDF cabinet reduces resonance, while the front port supports smooth low-frequency reproduction.
• Flexible Studio Connectivity: XLR, 1/4″ TRS, and RCA connections provide compatibility with different professional studio configurations.
• Footswitch-Controlled Bypass: The optional footswitch enables quick monitoring changes, making full-range mix comparisons more convenient.
Specifications:
• Configuration: Front-loaded, vented subwoofer
• System Type: Active subwoofer
• Woofer: 12″ Kevlar® Aramid Composite Woofer
• Frequency Response: 26Hz – 97Hz
• Max Peak SPL: 119.9 dB
• Amplifier Type: Class D
• Power Output (Continuous): 220 Watts @ 1% THD+N @ 44Hz
• Signal to Noise Ratio: 92 dB
• Amplifier Distortion (THD+N): ≤ 0.3% @ -3dB Max Power Output (29Hz-97Hz)
• Input Impedance: 9.4 KΩ Balanced, 9.2 KΩ Unbalanced
• Ground Lift: On/Off
• HPF Bypass: Footswitch only
• Footswitch: Optional
• Indicators: Power/Standby
• 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 lbs (28.3 kg)
Deep Low-End for Professional Studios
The KRK Systems S12.4 Powered Studio Subwoofer suits professional studios requiring powerful and controlled low-frequency monitoring. Its extended bass response, flexible crossover, and multiple connections support different monitoring configurations. It also provides convenient bypass control for comparing full-range and sub-assisted monitoring. As a result, the S12.4 offers a practical choice for demanding studio applications.

