JBL BassPro SL 8-inch 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System (250 watts RMS: 125 watts)

Amazon.com Price: $184.95 (as of 01/27/2021 10:15 PST- Details)

8-inch JBL BassPro SL powered under-seat compact subwoofer enclosure
Power output: Peak: 250 watts RMS: 125 watts
Efficient Class D amplifier