How about this one?
http://www.futurlec.com/Mini_Power_Dual_12V.shtml
It says on the pcb +5 and -5 aswell
That’s a switch mode power supply, so it will be noisy. The one you posted is a +/-12V supply only, they also sell a +/-5V version which uses the same PCB, just different regulator chips, hence the confusion.
Noisy as in noisy audio signal or a noisy power brick?
Noisy as in noisy audio signal or a noisy power brick?
The power supply will be noisy, leading to some noise on the audio signal. How much noise depends on the power supply filters, ripple rejection of the opamps, switching frequency (52kHz in this case), etc, etc.