Have so far only good part about the Kinter and can also only recommend it! Now playingNew my BPA Spirit 6 DIY speakers and has enough power to blow through the two large tower speaker properly.
At the sound of nothing there to grumble that does not sound much worse than my old Technics Bolide. The highs and mids are not as clean but you can also expect a hifi. It is astonishing how much bass! Other Klass D amplifiers have as major weaknesses. The remote control is of course not the best and was expecting a very limited range, but what should be for the money. For radio fans rather suboptimal, because you never know at what frequency it is. USB I have not tested.
The 2 * 30 watts RMS (more likely to be 2 * 20W) rich but easy! On speakers with high efficiency to hunt so that the neighbors of the house!
The little one is of course nothing for the living room, but for the money an absolute blast for party rooms, festival, tents and so on 1A. The high efficiency also recommended Battery operated! Let's see how long he holds;)