Alpine R2-W8D4 8 inch R-Series Car Sub Subwoofer 350W 4 Ohm Voice Coils 1000WNext Generation Alpine R2 W8D4 1000 Watts 20cm 8" inch 350 Watts @ 4 Ohm Car Sub Subwoofer The new 2022 R Series subwoofers are here drawing from decades of Subwoofer engineering experience. They deliver deep, clean, accurate bass and feature Alpines HAMR Surround for maximum cone excursion, delivering tons of bass output. the new ceramic dust cap is very light weight and rigid, keeping distortion an absolute minimum. The new, enlarged motor structure