the audio system amps are like you say and the bottom end of the run and steg is the better top end version both i have running and find that the twister is user freindly if a little lacking in the sound department however the steg brand amps are absolutly fgantastic i have these in my car and have a few others they are fantasic in sound quality and power value for money imo and easy to get hold of if you pair them to good speakers you will have a great system if you want more info on the steg stuff pm me asa i have heaps of things about them here anmd a few of the amps aswell:suave: