Audio engineers, studio musicians, and audio enthusiasts looking for a high-quality active subwoofer to extend the low frequencies of their monitor setup will be thrilled with the KRK S12.4, a fourth-generation powered studio subwoofer that delivers tight defined bass with remarkable transient performance, control, and punch. Adding this subwoofer to your 2.1 setup or 5.1 surround environment will optimize your mixing and listening experience. The S12.4 utilizes a 220W Class-D amplifier to power the 12″ glass-aramid composite woofer which offers a 32 to 139 Hz frequency response with a peak SPL of 119.9 dB. XLR, 1/4″, and RCA inputs and outputs are available, allowing you total flexibility when connecting additional subs and monitors. A four-position selectable crossover lets you adjust the subwoofer settings to easily match your existing monitors. The S12.4 can be paired with any full-range studio monitor, but really shines when paired with KRK’s Rokit and VXT monitors. The curved design with front-firing bass port provides placement flexibility. Other notable features include polarity and input sensitivity controls as well as a ground lift to prevent ground loops. The rugged MDF enclosure and all-steel grille ensure maximum strength and protection. Features 12″ Aramid Composite Woofer Frequency Response: 32 to 139 Hz Max SPL of 119.9 dB Curved Design with Front Bass Port Class-D Amplifier Footswitch On/Off Control Ground Lift Optimized 4-Position Crossover Control XLR, 1/4″, RCA Inputs, and Outputs Polarity and Input Sensitivity Control MDF Enclosure with Steel Grille Specifications Number of Included Monitors Single Monitor Enclosure Bass-Reflex/Ported Total Power Output 220 W Drivers Subwoofer Drivers 1x 12″ / 30.5 cm Composite Cone Amplifiers Subwoofer: 1 x 220 W RMS Class-D Performance Frequency Response 32 Hz to 139 Hz Maximum Sound Pressure Level (SPL) 119.9 dB Signal-to-Noise Ratio 92 dB THD N < 0.3% (Analog) Signal Processing Phase Adjustment 0 / 180° Phase Inversion Connectivity Audio I/O 2x XLR 3-Pin Balanced Input (9.4 Kilohms) 2x 1/4″ TRS Balanced/Unbalanced Input 1x Stereo 2RCA Unbalanced Input (9.2 Kilohms) 2x XLR 3-Pin Balanced Output 2x 1/4″ TRS Balanced/Unbalanced Output 1x Stereo 2RCA Unbalanced Output Network I/O No USB No Wireless No Power AC Input Power 100 to 240 VAC, 50/60 Hz Color Black Enclosure Material MDF, Metal Grille Mounting Points No Dimensions (W x H x D) 15.9 x 18.1 x 22.6″ / 40.4 x 46 x 57.4 cm Weight 66.5 lb / 30.2 kg
