I’m looking for sub and amp recommendations. I have an Infiniti G37. I want one sub and amp for the bass part. It will be on stock electrical. May do big 3 and optima if needed. It will be running off of mini dsp with active 2 way in front that runs off a Kenwood excelon amp. Want hard hitting base for rock/ metal and not so much of the boom boom. And of course budget friendly hoping to be around $500 for sub amp and sub. Any help is appreciated.