You could also consider putting a Shakti Online stabilizer on a power cord or speaker cable to remove noise.
I’ve done it for years on the top-of-the-line Shunyata (Constellation series, up to the ZiTrons) , Nordost (Valhalla, Tyr, Frey, all of which I’ve owned for at least 2 years, so I had sufficient time to hear them in my two systems, not just in stores, where setups are usually less than perfect (too much equipment in one room, power cords touching interconnects and not at right angles, etc.), and - no matter what the manufacturer said - it reduced the grain that manifests as a slight noise, making violins’ horsehair sound grittier than it does in real life, and filling spaces between musicians sitting next to each other with a very fine "fuzz" (if you have a system that actually separates out individual musicians in a section (mine does)). That also affects the sense of how illuminated the stage is, so that the back of the stage is as transparent as the front (meaning, you hear harmonic information, just as you do in some concert halls (mostly Carnegie, the one I attend the most).
I was surprised at how effective Shakti devices were. I had Shakti Stones as early as 1988, but was not as experienced a listener as I am now (plus my setup was nowhere near as precise as it is now). They do quite a good job on even the "super" cables. I doubt Shunyata (or even Nordost) would approve, but as a trained listener, I can easily hear more harmonic information when they are in the system. And the experiments are completely repeatable over the course of years, so given my hearing is LESS good now than it was, I would expect to lose the ablity to hear overtones as easily, yet I still hear them quite well. I can also tell when a stabilizer has fallen off the top of a speaker cable (there's just less "jump" to the music, and a reduction of spaciousness - which means more noise in the system).
But then, I’m only listening to well-recorded music, mostly - but not confined to - classical, jazz (from the 50s, not the ’70s when there were too many mikes being used) and ’50s singers (easiest way to hear the improvements). I'm not listening to pop records as often to make my assessments. Just easier to listen to Ella or Frank or Sarah and know there's only one microphone (or two) being used in the recording session. Too many mikes spoil the soup! :-)
I’ve done it for years on the top-of-the-line Shunyata (Constellation series, up to the ZiTrons) , Nordost (Valhalla, Tyr, Frey, all of which I’ve owned for at least 2 years, so I had sufficient time to hear them in my two systems, not just in stores, where setups are usually less than perfect (too much equipment in one room, power cords touching interconnects and not at right angles, etc.), and - no matter what the manufacturer said - it reduced the grain that manifests as a slight noise, making violins’ horsehair sound grittier than it does in real life, and filling spaces between musicians sitting next to each other with a very fine "fuzz" (if you have a system that actually separates out individual musicians in a section (mine does)). That also affects the sense of how illuminated the stage is, so that the back of the stage is as transparent as the front (meaning, you hear harmonic information, just as you do in some concert halls (mostly Carnegie, the one I attend the most).
I was surprised at how effective Shakti devices were. I had Shakti Stones as early as 1988, but was not as experienced a listener as I am now (plus my setup was nowhere near as precise as it is now). They do quite a good job on even the "super" cables. I doubt Shunyata (or even Nordost) would approve, but as a trained listener, I can easily hear more harmonic information when they are in the system. And the experiments are completely repeatable over the course of years, so given my hearing is LESS good now than it was, I would expect to lose the ablity to hear overtones as easily, yet I still hear them quite well. I can also tell when a stabilizer has fallen off the top of a speaker cable (there's just less "jump" to the music, and a reduction of spaciousness - which means more noise in the system).
But then, I’m only listening to well-recorded music, mostly - but not confined to - classical, jazz (from the 50s, not the ’70s when there were too many mikes being used) and ’50s singers (easiest way to hear the improvements). I'm not listening to pop records as often to make my assessments. Just easier to listen to Ella or Frank or Sarah and know there's only one microphone (or two) being used in the recording session. Too many mikes spoil the soup! :-)