Cambridge Dac Magic m200

Hi All, new to the forum and recently graduated from the sub $100 world to the 1k plus world. I bought my fist Dac/Amp, the Cambridge Audio Dac Magic m200. Does anyone else own or has reviewed one? I am using it as a pre-amp going into a Topping A90. I’m pretty happy with it, however as this is my first stack and have nothing to compare it to, am I doing the A90 a disservice?