Jacksonkuo -- The only downsides that I can envision that would result from interchanging the + and - speaker connections would be:
1)Other source components, if you have any, would have their polarity/absolute phase reversed, if they do not have the same xlr pinouts as the cd player, or if they are connected via rca's.
2)If you have a separate subwoofer, you would be changing the phase relationship between mains and sub by 180 degrees. If the sub has a 0/180 switch, you can easily compensate for that.
The sonic effects of the phase invert function on the preamp would be dependent on the design of the particular preamp. I would expect those effects to be either very subtle or non-existent in most cases.
Regards,
-- Al
1)Other source components, if you have any, would have their polarity/absolute phase reversed, if they do not have the same xlr pinouts as the cd player, or if they are connected via rca's.
2)If you have a separate subwoofer, you would be changing the phase relationship between mains and sub by 180 degrees. If the sub has a 0/180 switch, you can easily compensate for that.
The sonic effects of the phase invert function on the preamp would be dependent on the design of the particular preamp. I would expect those effects to be either very subtle or non-existent in most cases.
Regards,
-- Al