hey dude lemme tellu something few months ago i was like that esp i look for visonik DO NOT BUY ANY OF THIS unless it is covered under warranty n 30 days return ... what i realized that if u wait n spend good money once then u wont regret it dont waste money on these crappy subs , add another dollar 50 n get somthing decent which is covered so even if u blow it then u get a new one thats my opinions to newbies or neone..