Pioneer TS-A300S4 12" 1500W Max Power Single 4 Ohm Car Audio Subwoofer Speaker
Resonance Frequency (Fs): 32.1 Hz. 12" Single 4 ohms A Series Subwoofer. Single Stacked Ferrite magnet motor structure. Utilize Car Sound Fit app for experiencing in-car sound using smartphone. RMS: 500 watts.