@Qna89 comparing two products with similar functionality is not complaining - this actually the main topic on this site: comparison with other products. I like your analogy with V8 engines - just had to change oil in mine and it was expensive but nobody is complaining, yet saying that other cars with smaller engines are cheaper in servicing is not complaining either: it is just stating a fact.Exactly. I don't understand people complaining about weird noise of the volume pot. It’s normal for this technology like it was mentioned thousand of times. It’s like complaining that You bought a sport car with v8 engine and it consume a lot of fuel… it’s even better. Violectric knowing that some of people don’t like a resistor ladder sound have created a non pro version of their top of the line product to better fit customer needs. I don’t get it. You don’t like US 5 pro sound. Go ahead and buy non pro version. It is win-win situation and still people are complaining…
At the same time there is nothing wrong with accepting the limitations or drawbacks of particular product. I have nothing agains people who are happy with scratching sounds during volume pot movement. Personally I think that at this price level it is not acceptable, but I do understand that for others it is perfectly fine, however not letting know about it potential customers who are browsing this forum wouldn't be fair - don't you think? Somehow most "reviewers" skip this part in their description. Wish it was the other way around, but it is not unfortunately. Another issue is how many amps one have heard before selecting particular one, and did he/she had a chance to do a comparison side-by-side and even better in his system.
Nothing wrong here as long as everyone is enjoying their music while listening with their favorit head amp