If your system is a lot of work to move and be set up for a while I use my audio analyzer and run some noise through it you can walk around with a calibrated mic and look at the frequency response in different parts of the room it won't show you much if there's phasing issues
Equipment Rack Between Speakers...Good or Bad
This question came up in another current thread and I thought it would be more appropriate to start a new thread to address it. My rack is between my speakers. In the past I have tried it off to the side and didn't notice any sonic advantage. I have seen in in the past that there are some strong feelings on this subject, and I am interested in hearing what everyone has to say.