you can use various calculator and DIY it yourself. The only problem I can think of is finding the exotic components that will make your passive not at bargain price anymore :D
screw the passive for now la,sifu........gonna go active,perhaps when i'm ready to invests in serious SQ shit,i'll go back to passive.......u said u've got a friend for installation.....is it Abg.Yus from Batu Caves??
Congratulation to our bro Isaac aka Silverboy on your new born baby!!!...
Welcome to fatherhood and hope this wouldn't stop you from coming to our yamcha...