Jack .... In reality, A pair of 850's IS a pair of RS-1K's with the woofer section removed ... When you run a pair of RS-1K's, you plug the speaker wires directly into the "850" section, then run jumpers into the woofer amp. The "850" section is always run full range ... there is not even a crossover to the 8 inch woofer.

Ray, For sure, I Will let you know when the date is .. actually, it will be posted here.