Just starting getting back into car audio again and looking for a good sounding sub. What i have now is a old school kicker zr360 amp with 1 memphis pr sub in a ported box. The box is to memphis min cu. Ft. Specs with a slot port and was gonna make their optimal box specs but dont think ill still like the way it will sound. What im looking for is a good sounding sub around 500rms that slams. Im gonna use a ported box and its going in a hyundai accent hatchback that i will make a box for and have enough room for like a 3 cu. ft. box. i dont want a kicker,jl,rockford,alpine ect ive had them back in the day. I was looking at sundown,american bass and audioque subs and like to keep it around $200 for the sub and 500rms range cause i wanna keep the amp its an old school power house i kept from back in the day and still even have end caps.lol.