Very nice amp. I just had a long session last Sun with a friend who has just bought Topping LA90 discrete. He wanted to compare his Topping against my Aleph Mini but he also brought this NAD which was his previous amp. We were both surprised how well NAD fares against the other two. Then we fed NAD power section from my directly coupled B1 preamp (buffer) and the difference got even smaller. Clearly Topping or Aleph are better amp but the NAD is really good!