How to Break In a new CD Transport?

It sounds really nice which is what you want because 400 hrs is BS. The vast majority is done in 10 to 20 hours, by 50 for sure. Anything after that is in the realm of normal daily variations. That said you should leave it on but not bother playing anything unless you're actually listening. Leaving on will benefit everything except the output stage which needs a load. So if your DAC is also tube based and you don't want to leave it on you could put a 20k or 50k Ohm resistor across the transport outs. But I would just leave it on.

Thanks for your response, excellent information. A heck of a lot easier to get to 20 hrs. than 400!!
I misspoke about all tubes - the Dac is SS.How does that change the situation? Leave DAC on then play cd. That will give Load and exercise output stage? Everything else off?Thanks for the help.

It's a Transport only. It doesn't have an output stage.

For the life of me, I can't understand why a transport (not a CD Player) would need significant break-in. If it were me, I would listen to music as I had time, and I wouldn't worry about break-in. And this is coming from a guy who does believe in break-in and leaves his system powered-up 24/7.

Made me laugh! Output stage on a transport - oops, my bad. I might not have made that clear in original post. Sorry Millercarbon.Hey reubent, can't argue with keepin it simple.