Cambridge 840c burn in

So, I got a new 840C a few weeks ago and I’m kind of surprised by how dramatically the sound has changed. When I was demoing it in the store it was a box fresh unit and very bright sounding, but compared to the other players I was comparing it to it had much better bass and general clarity. I’d read here on A-gon that the burn-in would yield significant results so I took a chance and bought it. My initial thought at home was that I’d made a huge mistake – it was almost unlistenable bright. But I ran it 24/7 for almost two weeks and every day it got a bit better. Then, just yesterday, now at about 350 hours or so, all the residual high-end glare disappeared. It sounds great.

Does anyone have any thoughts on what is actually happening within the machine that is ‘breaking in’? It seems counterintuitive with a bunch of wires and caps, but it is a real phenomenon in this machine. I guess any other player too for that matter. I’m just curious.

I’m enjoying the player immensely by the way. It’s a huge improvement over my Jolida JD100, which is now doing duty in the upstairs system.