Ordered my 3 x0x's on tuesday, had them in my hand on the next tuesday.
Beautiful packaging, layers upon layers of protection, its good because the box was beat up from traveling around the world.
Beautifully print build manuals, with metal binder and plastic clear covers on the front and back.
The first and last pages of the build manual are made out of high quality textured paper.
The build manual was very descriptive and complete with test methods that don't require a oscilloscope.
The headphone output clips when turning it all the way up, it seems the volume output was made to be set at around 75%.
At the end I was looking for a quick rundown of all the calibration that needs to be done periodically, but there was no overall calibration procedure, this would be nice to put in the very back of the build manual.
(found an online resource,but not complete, and not step by step. - http://www.ladyada.net/wiki/x0x/testing
I am uncalibrated beyond the 5.33v due to the fact that i didn't have an external adjustable voltage source. The build manual mentioned that the calibration could be done after using the internal 2 and 3 voltage sources, but I didn't see a procedure to accomplish this. Same with the headphone amp...
Now I search the forums and other areas for info on completed x0x calibration method.
Soldering the ftdi usb chip was easy with a temp controlled fine point solder iron.
1 of 3 built.
Approx 2 days to build by an experienced EE, with no prior x0x build experience)
(at first i mixed up the dual pots, and had odd waveforms during testing, (until I noticed the pots were in fact quite different, a bit of desoldering to swap pots)Willzyx +++ Nice job on the packaging, delivery, labeling, etc.
(i only had 1 issue, the two SIP sockets were cut to 8 pin length, not 9. So I had to cannibalize one of them, and use my own supply of sip for the other, no big deal)