So I need help choosing a subwoofer for my manager's car. He has a 2008 Civic 4dr with 2 JL Audio 12W0 in a vented box running off a JL J2.500 amp. He is selling off the subs and box due to the size, it takes half his trunk space (almost no room for golf clubs). He wants to have similar amount of bass in a smaller package and listens from rock to rap music 50/50 SPL SQ. I need some suggestions on what might be good choices to run off 500RMS @ 2ohms (thats what I have to work with). His current subs (http://www.shopatron.com/products/productdetail/part_number=93261/1451.0.1.1) Here are some of my choices I am looking at so far and am thinking sealed. Also the enclosure build will probally be from Argent Audio. Also budget is under $200 for the sub(s) Let me know your suggestions and maybe why you would recommend it. Thank you... 10" RE Audio SEx D4 ($160) Sundown Audio SA-8 or 10 ($130 - $180) 2 10" RE Audio REx's ($50 each $100 total) SSA DCON 10 ($115) Any others I should try to look at??? LilDragon's Current Audio Setup 98 Honda Accord LX Alpine CDA 9886 Cadence CWM-6Kit & ZX-691 Cadence Z4000 RE Audio SE10 D2/Vented Box 1.25cu 33 Hz Tuning US AMPS MD1D Stinger/Lightning Audio RCA's