What do you rise to .51? I got to see this. If not you don't have a 4k you have a 5k. And I bet it cost just as much as every other real 5k.Actually they play down to 20 just fine you are only reading half the sentence there, and clamped output to mine last show was 5221, show before was 5273, last weekend here we did a little work and got it to 5419 so yes that is what my 4k is doing lol