I will be installing an Ulysses amp in my car this spring and then maybe replacing it with an ESX 60.4. I convinced my brother to go with ESX amps the old zed ones. Hopefully he will now see how good and powerful they are. I'm going to start him off with a 175.2 and if that is not enough I'm expecting a 275.2 to arrive soon. Mind you I don't really want to give him either of them yet he is my brother.... Does anyone else have any old zed in their cars? Currently I have a hifonics Gemini vii doing my entire system and it's pretty damn good. I'm almost totally satisfied with it. Just no real earthshattering bass yet with 4 8's it's good for now. L.