Totally agree. I like Linear PSU's. But I don't think it's a flaw in this unit.
Ryan
In all honesty, I wouldn't be capable of designing an efficient smps, but good ones are commonly available and cheap.
When I replaced the linear psu with a bunch of these little 24V smps, in my latest build, I couldn't detect a iota of difference between them.
Also I have two 51X racks, one that uses the silentarts (linear) PSU and another that I power with 4 MeanWell smps and a DC/DC converter for phantom; I can't tell the difference between them in operation.
There's an old saying that goes "Everything is in the signal path, including the PSU". I never forget that, but it's important to know exactly which part of the PSU actually affects the signal and how. Power amps and "brute force" DOA output stages actually depend very much on their PSU for proper performance, but any well-designed low-power piece of gear relies on proper local decoupling.