I wouldn't touch a Chinese built amp. Don't they still make SAZ 2K? Those were really strong and bullet proof.Yeah, someone told me that upgrading the soundstream amp would make a huge difference. That's why I wanted to go with the 2 sundown 2000 amps. 1 per sub. And I wanted to get the 2 sundown 1000 4channel amps for the 6 tweeters and 6 mid drivers. 1 for the left 3 and 1 for the right 3