Why so sure those companies will make a better AVR/AVP?
Maybe the price will be better, hopefully.
But, there are so many things going on in AV products... codecs, dsp, video processing...
Do you really believe they will make a good reliable product on the first try?
And why are you so sure that the SINAD will be better? Most AV signal is finally routed through a DSP chip and who knows, maybe no one can make a better SINAD with current tech.
Finally, this AVP has 108 db of dynamic range and 99 SINAD. Do you really need more? Can you hear the difference in 120db vs 100db?
Don't get me wrong, I wish more companies made AV products, because competition makes better product and great respect to Topping, JDS, SMSL for their engineering and dedication. We just don't have any evidence that they will make an AV product so much better then the rest.