Kicker 51PTRTP12 TRTP 12" 500w Powered Down-Fire Subwoofer+Enclosure Box PTRTP12

The PTRTP12 packs an active 12-inch CompRT subwoofer, a passive reFLEX radiator, and a power-matched 500W RMS amplifier into one factory-tuned enclosure. It is the larger of the two TRTP models and the one to pick when you want the extra cone area and headroom rather than the smallest possible footprint.

Even so, it stays low. The enclosure measures 6-1/2 inches tall, 14-5/8 inches deep, and 27-1/2 inches wide, so it fits under a rear seat or along the back wall of most trucks and SUVs. Down-firing orientation points the cone at the floor, shielding it from feet and cargo while using the cabin surface to reinforce output. Thick internal bracing keeps the box solid when gear gets stacked on top.

Integration takes minutes. High-level inputs from 1V to 40V tie into a factory system without a line output converter, and low-level inputs from 125mV to 5V handle aftermarket sources. An active 12dB/octave low-pass sweeps 50 to 120Hz, a 12dB/octave high-pass sits at 25Hz, phase adjusts across 0 to 180 degrees, and KickEQ bass boost adds up to 6dB centered at 40Hz for cabins that swallow low frequencies. Response runs 25 to 120Hz with better than 90dB signal-to-noise.

A remote bass control is included, so level changes happen from the seat instead of the cargo area.