Hey I'm looking to add a Meridian sub to my system. I currently have G68, G98, DSP 5200 & DSP 5200c. Anyone currently using a Meridian sub and have any recommendations, reviews..any ideas? I'm also looking to add DSP to the rears. Is it necessary to have the same DSP 5200 for the rears? Thanks

G68D,G98DH,DSP5200 x5