So i use to have one 10in MTX sub with a cheap 200 watt amp and it sounded okay, I upgraded to a new 600 watt JVC amp and all new wires, with the same sub. I now get alot of crackle before a song starts, the sound quailty is bad, i have to have my volume twice as loud as i did before to get the same
bass and sound, but still doesn't sound that good.

Question is what can i do to get rid of the crackle, and how to get the good bass and sound back.

 

Bad ground.

 

thank you i will try to find a better grounding area