Why does better power = better sound?


Why does improving power quality improve sound quality?

I’m not asking to start an argument about power cords or wall outlets. Please let’s not go there. I’m asking because I’m hoping to learn some technical explanations for the effects of power quality on sound quality. I think I already understand how…

1. greater current availability = greater dynamic range
2. reduction of RFI/EMI = better signal to noise ratio

…but what about these…

3. ???????? = greater perceived resolution
4. ???????? = more realistic instrument timbres
5. ???????? = more precise imaging

Are differences in resolution, instrument timbres, imaging, etc. somehow reducible to current availability and/or powerline noise? If so, HOW are they reducible?

Again, I’m hoping to get into technical specifics, not polemical generalities.

Thanks in advance.

Bryon
bryoncunningham

Showing 7 responses by arnettpartners

How do you determine whether to buy a 15 amp or 20 amp power conditioner? Simply by the size of the AC circuit it is plugged into or are there other factors like the demands of the audio system?
Thanks, Al. You are a pleasure to read. I wouldn't be afraid to spend a few more $ on a power conditioner based on the above testimonials--one which featured a storage capacitor. I still have an old Adcom with a storage capacitor, but it doesn't clean up the signal as well as the intro Furman. The intro Furman does restrict dynamics though unless as you suggest the possibility that eliminating harmonic distortion creates that illusion. I suspect, though, that it is in need of storage. I'm also researching the silicon filter.
I've got several cheap Furman power conditioners that I have picked up on ebay for under $50. The challenge is how cheap can I get them. They do improve the sound. So would it pay me to upgrade? Would it pay to go for $200 worth? Don't be concerned about restricting the dynamics in my case. I'd probably be happy in an anechoic chamber.
OK. Thanks, Kijanke and Al. Yes, no subs. I'm reading this fantastic review of the Furman Elite 15 something--15 amp rating, I think.
Very comprehensive unit. Thanks. Yes, I still unplug during thunderstorms.
OK. Will make sure it is a PFi. I'm probably going with a 20. It might be overkill, but I have a high current amp with 120 amps instantaneous not that I ever use all of it. If I get the 20, though, I won't have to wonder if the system is ever limited by its power source.
I've seen the Furmans with those tubes and never new exactly the purpose til now. They would be useless to me too. But, oh well. My stand can handle the depth. Thanks so much.
There's a used 20 on ebay right now.
Lynne