Update. my customer never showed up. I called late afternoon. He was expecting his z2 and ups did not deliver. Hopefully today. I also called one of my friends who works at big audio install supplier R and D and he said he was told by pioneer that it was no different than the z1. Which from these post does not seem to be true, He is keeping his ear out. Another friend who is a premeier dealer has pioneer coming to his shop for training today. Kee your fingers crossed. Maybe my customer will show up or he will get some info,