I used reg 703 with no FRK for my first reflection panels and for my corner bass traps. Here is an old thread.

http://www.axiomaudio.com/boards/ubbthreads.php?ubb=showflat&Number=144079&fpart=1


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85