I've had a Doge system for over two years now and am very happy with it. This system is comprised of the Doge-6 tubed CD player, the Doge-8 pre-amp, and the two Doge-9 monoblocks. Together they produce the best sound I've ever heard - wide and high soundstage, with a fullness and crispness that is beautiful to listen to, with lots of definition (and space) and dead silence when the music pauses, and all this is with the original Chinese tubes. While I plan to upgrade the tubes at some point, I have frankly been more than pleased by what this system creates, sound-wise, so I am in no real hurry for the upgrade.
I had these units shipped from China (I dealt directly with Doge - although this is not the normal way to purchase these). When UPS dropped them off, they were all on a large wooden pallet, and the delivery man needed help moving them - they are very heavy and very well made. An accurate way to view these units is as higher end Jolidas, since they were designed and manufactured by the same engineer who designed all the earlier Jolida equipment, only the Doge's have higher quality components in them. The same units are sold in Germany under the Lua name (or is it Lau?) for significantly more money and a slighter different outside look.