In my case I have been poking along with my Onkyo Integra 939 receiver running my Legacy Classics (4 ohm) in 2 channel mode. The processing is out of date (the D/A sounds good), but not a concern until I assemble a 5.1 or 7.1 system. The amplification is about the bare minimum for my speakers, but have often wondered how I'd fare using a Yamaha (or other) $600 receiver as a preamp, and using something like an Emotiva XPA-2 (or XPA-5). I hate the idea of throwing away a $2 to $4k receiver every few years just to update to the newest processing. I do not see any end in sight for this trend of ever changing processing and HDMI interface changes. Fortunately, it will be some time until I can put my HT system together, so I will have plenty of time to read and limp along with the old timer Onkyo.
Thanks again for the great article(s) Gene!