Hertz MPS 300 S4 12" Shallow-Mount Subwoofer Capacitors 400 is a four-channel Class

400 is a four-channel Class AB car amplifier designed to add clean

It is intended for systems that need more control over bass response than a source unit or amplifier adjustment alone can provide

Confirm the enclosure opening

Each system combines a 6 x 9-inch woofer section with a 25 mm titanium dome tweeter

Observe speaker polarity and use wiring protected from sharp metal edges

Hertz MPS 300 S4 12" Shallow-Mount Subwoofer Capacitors 400 is a four-channel ClassThe Hertz MPS 300 S4 is a 12 inch shallow mount car subwoofer designed for systems where conventional deep subwoofer enclosures will not fit. Its 88 mm mounting depth helps make it suitable for compact custom installations, including under seat or rear bench enclosure applications. This model uses a single 4 ohm voice coil and is intended for dedicated low frequency reproduction. With 500 watts continuous power handling and 1,000 watts peak power