Welcome, Rhanson to the TP-2.0 preamp club. I just received a detailed explanation regarding the phase from Victor. I asked him if I could post the explanation on this thread and am awaiting his reply. I just reversed my speaker leads and the sound became out of phase, so the standard hook-up is in phase for my system. It might be different for others. Victor's explanation talks about this issue. Don't worry, because I just did a detailed search on the threads discussing phase and there is a lot of information. I'll find the thread that helped me a lot in understanding this phenomena. If you read the posts, you'll see that a lot of studios record the songs out of phase.