12″ Kevlar® Composite Woofer: The KRK S12.4 features a 12″ Kevlar® composite woofer, providing tight, defined bass. This material ensures durability and enhances sound clarity, delivering frequencies as low as 23Hz. The woofer handles deep bass with precision, making it perfect for studio monitoring and production.

Class-D Power Amplifier: The built-in Class-D power amplifier offers enhanced transient response. This results in punchy, accurate bass reproduction, ensuring every beat and note is clear and impactful. The amplifier’s efficient design also reduces heat, maintaining optimal performance during extended studio sessions.

Bypass-Control Feature: A unique bypass-control feature allows monitors to continue functioning in full-range mode, even when the subwoofer is bypassed. This flexibility is perfect for quick transitions between full-range and sub-assisted monitoring, making it easier to hear mixes in different sound stages.

Four-Position Selectable Crossover: The four-position selectable crossover enables seamless integration with existing monitors. You can adjust crossover points to fit your desired sound profile, tailoring the subwoofer’s output to complement your studio setup for a balanced, full-range sound experience.

Durable MDF Enclosure with Front-Firing Port: Designed for durability, the S12.4’s MDF enclosure minimizes resonance, ensuring clearer, undistorted sound. Its front-firing port extends low frequencies while reducing turbulence, providing a smooth bass response that works well in various room environments.

Versatile Connectivity: The KRK S12.4 supports a wide range of connectivity options, including XLR, 1/4″ TRS, and RCA inputs and outputs. These options allow for easy integration with different studio setups, providing flexibility for any professional environment.

Footswitch-Controlled Bypass: The included footswitch-controlled bypass allows quick and easy transitions between different monitoring setups. This feature is especially useful for professionals needing to compare full-range and subwoofer-assisted mixes on the fly.

SPL and Performance: With a maximum SPL of 119.9 dB, the S12.4 delivers powerful sound with minimal distortion. Additional controls for polarity, input sensitivity, and ground lift ensure optimal performance in any studio configuration.

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)