No, but I've got a Modi 2 Uber and that little sucker is a firecracker. I do not leave it on all the time.
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The Yggy is spec’d as consuming 35 watts (although a rear panel marking that can be seen in a photo at their website says 45 watts), and measuring 16" x 12" x 3.875" and weighing 25 pounds. 35 (or even 45) watts dissipated in a component of that size and weight should not result in the component getting anywhere close to being as hot as you describe. And the presence of numerous ventilation holes in the Yggy’s top panel further reinforces that conclusion.
Either the power consumption spec is drastically wrong or the unit is defective and what Schiit told you is wrong. Consistent with some of the previous responses I’m inclined to believe the latter.
@213Runnin, thanks for pointing that out. Based on the photos at the website I would never have suspected that the "holes" don't go all the way through the panel.
Even so, however, I would not expect that 35 or 45 watts going into a component having the size and weight of the Yggy would cause it to be as hot as the OP described. It would be a different story if it were say a 40 watt light bulb :-)
Al, I’d readily admit that I’m out of my depth quickly with this stuff. I have no idea how warm 35 watts is supposed to get.
The Yggy does also have some expensive chips for the dac conversion, 4 Analog Devices AD5791, which probably get pretty warm. I just checked, those chips seem to go for about $100 each, or am I missing something?
I do know that I’ve become a big fan of the ladder dac design, and the guys at Schiit really seem to know what they’re doing.
It’s unwise to make the broad statement above by taking an ’n’ of 1 and applying it to a successful product range that likely has the widest (or one of the widest) numbers of absolute users / units (standalone ’audiophile’ DACs) within the U.S.
The OP needs to measure the temps of his unit and report to Schiit for an exchange / replacement, if it falls outside of operating tolerances.
@213Runnin, re the AD5791, it can be calculated from the voltage and current specifications shown in the "Power Requirements" section near the bottom of page 4 of its datasheet that each of them consumes something on the order of 125 milliwatts (0.125 watts). The chip itself may get a bit warm, due to its small size, but of course 125 mw x 4 chips won't make much of a contribution to the temperature rise of the overall component.
I have no information about the Schiit YGGY DAC running hot and suggest you call Schiit, again, and and ask them. k4rstar12 reported above that "he owned multiple YGGY's and they were never more than slightly warm to the touch even after being on for many weeks". I suggest you determine how hot your YGGY is actually getting so you can review its actual temperature with Schiit.
Please note that my Ayre Codex DAC also ran hot. The Stereophile review reported "My sample of the Codex DAC got hot to the touch—about 108°—after a couple hours. HiFiPlus reported "Almost – it runs hot to touch like an Ayre amplifier (nothing to worry about here). Ayre reports the Ayre’s exclusive Diamond output circuit run hot and this is normal and nothing to worry about. I kept my Ayre Codex DAC on all the time and it was hot when being played and was never a problem.
This Schiit Happened book is terrific. It talks about how they got into the business, their research, development and the many issues that had to deal with. It is technical, in places, to better explains their strategy and approach. Their approach on customer support is priceless.
I am still reading it. Highly recommended.