Klipsh and REL

Has anyone had any problems integrating REL subwoofers with Klipsh speakers? If so, what were your issues and were you able to solve them? I have the RP-600M and just ordered a pair of REL t5is. I've been getting feedback(particularly from RELs chief engineer)telling me it's not going to be easy to intergrate everything because Klipsh doesn't take much power to drive. T5is arrive Monday. Just trying to get a feel what I'm getting into. Simply put...Im a noob :p. 

IOTAVX-SA3 AND PA3 are what will be driving them(I know it's more than I need :)). 

Thank you all.