Recommend a 5.1 DTS decoder DAC, please!

[RobC]

I'm looking for a standalone 5.1 decoder.

I did see that cheapo HD Audio Rush 5.1 box, but hmm...

(Btw, things got resolved with Edifier, and I got a replacement for my T5 subwoofer. The sound together with the R1000T4 is decent now. And it sounds very good with an R1280DBs, but that's a different topic.)

Note that this is for entertainment purpose!

Bonus question: should every speaker match in a 5.1 system? Or can we use different ones? Aka. a bit weaker ones for Rear, stronger ones for Front, etc.