Klipsch R-121SW 12” Front-Firing Subwoofer with revamped Spun-Copper thermoformed crystalline Polymer woofers and an All-Digital Amplifier for Premium Sound in Black

12" front-firing woofer made of spun-copper TCP (Thermoformed Crystalline Polymer) built-in digital amplifier delivers 200 watts RMS of continuous power (400 watts peak dynamic power) frequency response: 28-120 Hz bass reflex (ported) cabinet design with rear-firing port maximum output: 118 dB 3/4" MDF enclosure scratch-resistant textured woodgrain vinyl finish internal bracing for reduced vibration acoustically transparent low-profile grille adjustable low-pass crossover (50-160 Hz) phase switch (0/180°) auto on/off RCA line-level/LFE input front LED power indicator dimensions (measured by Crutchfield): 16"W x 16-5/8"H x 20-15/16"D