If I didn't already have an A90, I would buy this. It adds a lot of features at essentially the same level of performance. And to do so in a discrete design is an admirable engineering feat.It does the same thing doesn’t it?
It’s very obvious to me that the A90 sales are decreasing and they needed a new product so that reviewers can talk about it all over again and bring sales back up.
If this product makes you wanna throw your A90 in the trash because this one is so much better go ahead, but I personally don’t agree.
However, as a flagship / halo product, it keeps Topping at the forefront of my mind the next time I'm shopping for a headphone amp.