lots of misunderstanding in this area.
1. Power cannot be "cleaned". it isn't just a nice sine wave with some noise the can be "filtered" out. the sine wave coming into your house looks like crap. Here is a link to a photo of a scope of the power coming into my house-chopped tops. 4+% thd. https://photos.app.goo.gl/f3e4gqJ5m6QAqDLG8
2. Power cables don't deal with noise. Power cables deal with power. Adequate power. (I've given lots of other discussion before about the difference between nameplate power and short burst power transients to support base and dynamics so I won't go into that here).
3. You can't fix power downstream of a bad power component. Put a resistor in a wire. you can't put an "unresistor" downstream of it.
4. Power strips are almost always resistors. The thermal breaker in their overload function is WORSE than a fuse and fuses are horrible for high quality sound. Tiny wires inside. Avoid.
Best of luck,
Jerry