Is there any reason to avoid using something like this?
I’d like to be able to use something other than the wall wart (I’m currently using a CIOKS but might start using it without the board).
The values look useful at first glance. However, check beforehand whether the polarity of the connectors is correct. I have not found with a quick view there. If it is wrong, the QC could get a bad temper ;-).
Globtek PS Digi-Key part number: 1939-1233-ND works nicely for around $24 shipped in the US. Much more robust and solved the grounding artifacts that some have experienced, note I didn’t have the noise issues but wanted a spare PS just in case.
If you get it, it comes with three tips, use the larger yellow tip etc., also before you push the tip in, ensure the polarity is correct for QC (center negative).
Hey! Did it work for you? Did you notice any correction on ground noise if you had any initially?
I personally have never experienced noise from ground related issues but it was recommended from many who claimed it resolved their noise issues. I specifically purchased to have a fairly priced spare that was a bit more robust.
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I use a 12V 27 Watt power supply behind a APC 500 UPS (Uninterruptible Power Supply) and never had any issues. also not during external power issues (power outage or bogus frequency) because all is seperated thrue the UPS. bonus: saves your life in case of stupid band mates pulling the wrong power cable 
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