Alpine R2-A150M R2-Series mono subwoofer amp (1500w RMS x 1 at 1ohm) speakers 4" Highlights:

Highlights:

000 Hz (Hi-Res capable)

parking grid lines for rear-view camera

Eight M10x30mm hex-socket bolts

50 watts RMS x 4 at 4 ohms (70 watts RMS x 4 at 2 ohms)

Alpine R2-A150M R2-Series mono subwoofer amp (1500w RMS x 1 at 1ohm) speakers 4" Highlights:Extra loud, realistic bass If you like your music loud and clear, Alpine's R Series R2 A150M amplifier is for you. It cleanly reproduces the bass in your music so you can enjoy the enhanced realism you want, even when you're playing high res music. Alpine has built some of its top of the line amplifier technology into this R2 Series amp, including high efficiency transformers, premium low noise custom capacitors, and low distortion dual "Sierra"