I finally broke down and decided to upgrade my three-year old Sony STR-DA50ES receiver with a new STR-DA4ES. Since the 'DA4ES has adjustable crossovers for all channels, does anyone have any suggestions as to how I should set the crossovers for a first cut? My 'DA50ES had a fixed crossover for all channels (IIRC it was set at either 100 or 120 Hz). For reference, I'm running Klipsch RF-3's up front, an RC-3 center, and RS-3 surrounds (my rear center surrounds are a pair of old JBL bookshelves until I pick up two more RS-3's). My sub is an original SVS 20-39PC. I thought for a first shot I'd just pick the crossover frequency to be the -3 dB point of the speakers. Also, in the past I've run my RF-3's as large and the rest of the speakers as small. Is it wise to continue to do this? It's worked great in the past.