Yeah I know that but I want multichannel out, not just L/R. I don't know of any receivers that do this but even if it just had a third center-channel pre-out I'd be happy with that, I don't see anything wrong w/ powering surrounds with the built-in amp.
I want to get a Monolith 3 channel amp if they're ever back in stock, but I hate the idea of powering L/R channels but not the center which has the same power handling, I'd have to boost the crap out of it in the AVR speaker settings.
As far as I know the cheapest 8K AVR w/ multichannel out is the Denon 3700, which is literally twice as expensive and the multichanel pre-outs are the only extra feature it has over the Yamaha that I care about, but only one 8K input which is pathetic, esp. for their price.