op-amp

Long-time listener, first-time caller... Been looking at some of the recent class-D wonder-amps (fosi, aiyima, smsl, topping, etc) and noticed that the 2 main "tweeks" are 1.) roll the op-amps and 2.) get the 48V power supply. I thought the power supply advice seemed logical and was pretty...

I just got the XD-05 Basic as an upgrade from my 3 years old Fiio Q1 MarkII. The main reason I chose the XD-05 is its ability to swap op-amp for slightly different sound as I listen to several types of music - classic, trance and everything in between. This is my first time into op-amp rolling...