Hey there,
im fairly new here so forgive me if I am not used to the way around here.
I recently bought both the smsl m500 m2 and the topping dx5 and use an hd650 via the original cable.
I experience a scratching noise when changing volume levels but only from the toppings dx5 or at least it wasnt audible with the smsl m500 mk2 neither with any previous application with my headphones. I only know this phenomenon from my Magnat shadow 207 powered by an yamaha rs 202d which I rarely use anymore.
Is this business as usal or is this a sign for a flaw? does this hurt my hd650?
Depending on the other answers: should I return it?
For clarification both dacs are connected via usb and not both at the same time.
maybe someone can clarify things for me thanks in advance.
Julius