Hifonics HFX12D4 12" Dual 4-Ohm Car Subwoofer Marine Subwoofers The Gravity GR-10PW is a

The Gravity GR-10PW is a 10-inch car audio subwoofer intended to add dedicated low-frequency output to an aftermarket sound system

back-vented mounting structure

ventilated location within its stated 0°C to 55°C operating range

Installation requires 4-gauge power and ground wiring

This makes it a practical choice for speaker locations where conventional car speakers may not be appropriate

Hifonics HFX12D4 12" Dual 4-Ohm Car Subwoofer Marine Subwoofers The Gravity GR-10PW is aThe Hifonics HFX12D4 is a 12 inch dual voice coil subwoofer designed to add dedicated low frequency output to a vehicle audio system. It is rated for 400 watts RMS and 800 watts peak power handling, making it suited to systems that need more bass impact than full range speakers can provide. Its round, standard depth design is intended for universal mobile audio installation. This subwoofer is a practical option for listeners building a first bass