I'm running a second zone for fellow. It will have two crown amps. A CDI2000 for his top end and an XLS2502 for the sub. The XLS will only accept a mono signal through input one when you bridge it.

My plan is to split the RCA output. One pair will go into a Cleanbox Pro and then to the CDi2000, the other will be summed mono per this article:

[Link: rane.com]

And then fed to the sub.

My question is will there be any nagative side affects to having the signal split, and one pair being summed mono while the other remains stereo?

Is there another circuit I should build that sums the pair to mono but also allows for the use of the original stereo signal?

Thanks.

Craig.