Hi, First of all - sorry form my bad English, I hope that you will be able to understand me. :) I want to buy Sennheiser HD 600 headphones. Also, I'm interested in Topping A30 but I'm not sure how HD 600 will work with it. The reason I'm considering buying Topping A30 is because in many...

Hey guys! New to the Head-Fi community, I've bought the Topping D30 and A30 combo on Massdrop a few months ago and I'm trying to understand which settings I should really be using to get the best performance out of my headphones. I see the "Off/Low/High" voltage switch, I honestly don't hear...