Hello members,
i have a seemingly strange issue, hoping someone can help.
i have a 5.1 setup, with my Sierra-1 fronts positive (red) to positive and negative (black) to negative (black) with my Yamaha A1020 receiver. Ran YPAO, no issue detected by the receiver. however I do feel the sound are a bit "noisy" and a bit "bright". I have it running like this for a few weeks, hoping this maybe the speakers needs break-in time. Today i loaded up my Star Wars DVD, and ran the THX optimizer within, it tells me my front left and right Sierra-1 are out of phase. When I listened to the audio phase test, the sound effect are out of sync with the test signal, so it tells me to reverse the left speaker wiring. I reversed the wiring on the speaker terminal, and then the sound effect is in sync with the phase test. Now I try to listen to some movies and cds, the sounds does seems to be "cleaner". Then I decided to run YPAO again, YPAO tells me my left front phase is reversed. So I am very confused, can anyone explain what is going on, and what I should do?

thanks.