Aren't they more expensive than the R-50? I'm curious as to why VSonic decided to do another dual BA. The GR01 is decent and is tuned slightly differently from the other ones on the market already.
Anyway, both the VC1000 and Astrotec AX-7 seem to be very well built and priced right so we'll see which one comes out on top.
You can purchase VC1000 for $119 US on eBay, so pretty much neck and neck with R-50 $120 price tag.