LOL...I've had mine on constantly since I got it, but that's maybe 100-120 hours so far?
Mine didn't come with a disc. I thought they did? I am just leaving my computer run through USB on repeat. I did run a sacd through it for a day on repeat. I'll alternate.
My ARC gear only has around 200 hours on it (I don't leave it on continually). Have had it for a month and a half or so.
So yeah, I have heard some differences in quality but I don't know what is breaking in at what rate
