in the interm if the Pioneer offers a phantom mode for the center just go with that. until you get ready to move forward. As well I wouldn't mix and match with reference series that whole lack ofTimbre matching thing would really stick out.
Living Area RF82, RC62 ,CDT5800-C, Velodyne SPL1200r
Two.1 Channel Heresy 1, LF10
Garage set up Heresy 2
In reserve two pairs of Heresy 1's, KG 1.2
several other KG, KLF, KSP speakers that have come and gone.