Phasing Problem

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I just finished a couple of LM1875 Amp with PCB from BrianGT. Everything was good except one little problem. It seems that the sound phase is reversed. I tested the amp using the XLO reference disc. During the the in-phase test, the sound was scattered all over and during the outer-phase, the sound was focused in the centre. It supposed to be focused during the in-phase test and scattered during the outer-phase test. What could have caused this? Main's power not connected in the correct phase? Thanks.



Regards,


Kristian
 
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