Hifonics BRW10D4 10" Dual 4-Ohm Car Subwoofer Component Subwoofers It accepts both low-level preamp

It accepts both low-level preamp signals and speaker-level inputs

vehicle-oriented speaker design

helping installers work around space restrictions common in compact vehicles and truck interiors

The AUDIO360 ADS840-SHALLOW is an 8-inch shallow-mount car subwoofer designed for vehicles where conventional deep subwoofers will not fit

Hifonics BRW10D4 10" Dual 4-Ohm Car Subwoofer Component Subwoofers It accepts both low-level preampThe Hifonics BRW10D4 is a 10 inch component car subwoofer built to add dedicated low frequency output to a vehicle audio system. It is intended for listeners who want more bass depth and impact than typical full range car speakers can provide. Because it is a component subwoofer, it requires a separate enclosure and an external amplifier. This Brutus series model uses a dual 4 ohm voice coil configuration for system design flexibility. Its listed 1600