+1 for logitech Z506. Good performance. however no remote available for this model.
The Edifier model you want to buy has a total output of 64W (6W x 4+10W +30W RMS) , while the Logitech one has total output of 75W (8W x 4+16 W+27 watts RMS).
There's no remote in Premium Sound 5.1 Speakers AFAIK.For remote you can look into local brands like Frontech,Zebronics or Techcom but you will not find as good as creative, logitech and Altec Lancing offers.
Out of your 3 options, the F&D model has the highest RMS. My vote goes for that model.
Offtopic
About 2 years I had a speaker by ALTEC lansing (VS 3251), which had all the feature of a killer speaker. 5.1 surround, aux in input, remotes and 75 RMS, . But my faulty UPS killed that speaker and ALTEC had already discontinued that model.
How dearly I miss that speaker, whenever I read any topic about 5.1 speaker
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