JBL PRX915XLF | Professional Powered 15-Inch Subwoofer
Varro Premium PS500 15" 500W Powered Subwoofer with App Control/Auto EQ, Black Vinyl - Walmart.com
Bass Rockers - 15 Inch Loud Competition Subwoofer - 4400W/ 2200W RMS - Max Program Power - Car Audio for Pro Car Stereo - Woofers Home Theater (4-ohms) - BRNK15v2 - Walmart.com