Best car amplifier and subwoofer combos

Start with the CT Sounds single 12" package. It's the one I'd put in most cars: sub, box, amp and wiring in one box, 650W RMS, and the strongest owner feedback of the group — so you're not matching parts or guessing at box size.

Who the others suit:

• Rockville DK512 — a 12" with a 4-gauge kit for a tighter budget; DK58 if space is short.
• NVX NPKG212 — dual 12s in a slot-ported box when you want real output.
• MTX TNP212D2 — sealed box, tighter, punchier bass for rock and metal.
• JBL BassPro 12 — all-in-one powered sub, easiest install, modest output.
• CT Sounds dual 12" — the step up if you have the room and want to be heard.

Check your amp's RMS rating and alternator before going bigger than 650W.