Okay, so for someone much slower than the rest of you... If my source does not invert, my preamp inverts and my amp does not invert my sysytem should be in absolute phase right? This way, my sytem would be set up properly for recordings that have been recorded in absolute polarity (although many recordings are not.) If I then wanted to confirm that my end result is absolute polarity would an absolute polarity checker accomplish that? (My amp is french and they are terrible about responding to inquiries) so, I am not 100% sure that it does not invert phase and would like to be able to confirm my end result with such a tool if that is what the tool is intended for.