Which to upgrade first, speakers or receiver?

[Warjack Prime]

I didn't see any HDMI inputs on your receiver. I was under the impression that the new HD audio formats couldn't be transferred via optical. If that's the case I'd start with a new receiver.

However, I'm sure there are others on this board who could look at the specs of your speakers (the link didn't work for me so I had to google the model number) and know if you'd get more out of replacing them first.