JBL – GX Series 12″ Single-Voice-Coil 4-Ohm Subwoofer – Black @ Best Buy – Free Ship, ISPU $29.99

https://www.bestbuy.com/site/jbl-…k7pmi0081w
Handles up to 1000W peak power (250W RMS)
For rich sound.
35 – 200Hz frequency response
For accurate sound reproduction.
90dB sensitivity
Picks up the highs and lows for faithful sound reproduction.
11" mounting diameter; 6" mounting depth
For a proper fit.
12" passive subwoofer
Delivers authoritative bass.
4 ohms impedance
Conducts power to keep speakers working at optimal levels.