Different between Normal Surger protector extension and Audio Power filter extension

Hi,



I ran out of power socket to use for my rig and is currently looking for an extension.



I would like to know if there's any major differences by using Audio-grade power filter extension by on your personal experiences.

(E.g. Belkin, APC vs Audio grade ones)



A quick search on google say there's a different but YMMV.



So if you don't mind please share some comments on it.



Also if you can recommendation please do let me know, currently I would not want to exceed $100.



Many thanks.

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