Does your Pioneer put out 130 wpc X 7 channel simultaneous driven under load or is each channel capable of putting out 130 WPC (as most mass market products are really rated with this approach vs. the much more conservative ratings you will find with higher quality components). The B&K were rated with all channels driven, not just one. I would be suspicious of the Pioneer's real capabilities vs. the rated capabilities. I would also be extremely suspect of "professional" reviews of mass market products. For the most part, these are advertising based reviews.
The previous comments are the only real step you have short of buying something new (ie. an amp) to do what you can do by just moving some existing equipment.
The previous comments are the only real step you have short of buying something new (ie. an amp) to do what you can do by just moving some existing equipment.