I recently purchased a rev500, while try to hook it up I notice it didn't have rca connectors. please advise me the best way to use it with the da7. thanks

The only "RCA" connections are digital(SPDIF) The ins and outs on a REV500 are analog. You need to get a TRS to 1/4" Y cable for both the inputs and outputs of the REV and run it thru the DA7 sends and returns.

Thanks alot DougA!!!!