TOPIC:

New member here, I’ve recently just upgraded to 4 subs. 
2x R120sw klipsch 
2x r112sw klipsch 
my AVR currently is a 3400h and will be upgrading soon. Non the less both avrs have 2 independent subwoofer outputs. My question is what is the best way to connect the minidsp? Am I wrong in thinking to utilize both of my avrs sub outputs sub output 1 into input 1 on the dsp and sub output 2 into input 2 on the dsp? 
or do I only use one of my avrs sub outputs and let the mini dsp manage everything that way. What are the pros and cons to both way?
thanks
 

Welcome to the community! 
Only one output is typically enough from AVR since they are 99% of times just duplicated (not stereo). 
You can use this app note as a starting point: www.minidsp.com/applications/subwoofer-t...tuning-multiple-subs

devteam