Great underseat sub, with my sony explode radio system make drive my car on totally diferent level, sound is pure and exelent remote controler to full fill deep bass great mixers. I geve 4 stars only be coz persson who packed the sub and stuff with it forget to put plate who ment to secure connection between sub and cabble socket so that missin and plates to hold sub in place, in instuction sayes i have to drill holes in hase of car for plates who stabilaze sub to floor, so now when some one pop in on front of me i will have to brake harder and sub will get instantly disconected and fly acros to my fit fully disconnected... Have to think about some DIY to make driving safety. Product him self 6/5 stars love it!!!