This is not a sonicware PSU per se, I assume they don't make their own, which is understandable. However, as long as you have the right barrel connector and polarity, any other similarly rated (voltage) PSU will work. Some times when I've used it Ive gotten lots of noise on the line out. (but not always so it could be due to other reasons).
I was expecting something with more quality at this price point.
As it stands, this is just a way to not have to bother finding the right barrel connector, since it is not the most common one.
My pro tip is to spend some time searching for a simple USB C PD angled barrel connector with the right size and voltage rating and then just stick any modern phone charger or other USB C PD brick including USB C PD power banks. A decent USB C PD power brick will power this for days :)