a wall wart is a digital switching power supply, i guess you refer to them as a puck...
anyway, well documented and measurable the trash they dump into power line as well as RFI generated....
cleaning that up = good
if possible get a linear power supply...
seperate circuits also help a lot....ideal is three w digital, low level analogue and power amp all on dedicated lines...
inhave four w DAC olso on a dedicated line...
snakeoil for sure....
anyway, well documented and measurable the trash they dump into power line as well as RFI generated....
cleaning that up = good
if possible get a linear power supply...
seperate circuits also help a lot....ideal is three w digital, low level analogue and power amp all on dedicated lines...
inhave four w DAC olso on a dedicated line...
snakeoil for sure....