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KRK Systems S12.4 - Powered Studio Subwoofer The KRK Systems S12.4 powered studio subwoofer delivers ultra-tight, defined bass with exceptional sonic accuracy and performance. Featuring a custom-made 12" Kevlar® composite woofer and powerful Class-D amplification, it enhances your studio monitors with extended low-end response and precise control. Key Features 12" Kevlar® composite woofer for tight, accurate bass Bass extension down to 23Hz with a maximum SPL of 119.9 dB Footswitch control to enable/disable subwoofer and crossover filter (footswitch not included) Redesigned low-profile cabinet with front-firing bass port to reduce turbulence and boundary coupling Lightweight, powerful Class-D amplifier for improved transient response and punch Optimized four-position selectable crossover control for seamless integration with studio monitors Universal connectivity including XLR, 1/4" TRS, and RCA inputs and outputs Polarity and input sensitivity controls for precise tuning Ground lift switch to prevent ground loops and hum Performance and Compatibility The S12.4 pairs perfectly with KRK monitors such as the ROKIT 8 G4 and V-Series 6, or other studio monitors, providing an optimised mixing and listening experience with extended low-end clarity. Its exclusive bypass footswitch feature allows full-range audio to pass to your monitors without switching off the subwoofer, giving you flexible control during production. Durability and Design The subwoofer features a heavy-duty reinforced MDF enclosure designed for maximum strength and durability, ensuring reliability in demanding studio environments. The front-firing port is engineered to extend low frequencies while minimising port turbulence for clean bass output. What's in the Box KRK Systems S12.4 Powered Studio Subwoofer User manual Power cable Compatible Studio Monitors ROKIT 8 G4 2-way powered studio monitor with 8" glass-aramid composite woofer. Learn More V-Series 6 6.5" near-field studio monitor featuring a 155 watt bi-amped Class D amplifier. Learn More