I just added a pair of the original RTA 12's w/stands to my collection. I was compairing to my monitor 10's (stock crossovers) and the 10's just sound cleaner with more detail. Compairing to my monitor 12's (sonic caps and mills, sl2000) again monitor 12 sound better. All drivers in the rta12's are fine. So, picked up some rta12B crossovers (stock) and installed them, now we are getting some where.