Close. The best Porsche is the one you're driving.
This Whole AC noise thing...SOLUTION!
I've been spending hours researching the whole issue of AC noise/distortion finding its way into our stereo systems......My conclusion is it is VERY real.
I've also concluded that any of the generally supported methods of removing it are at best ineffective and at worse nonsense.
There are simply WAY too many devices in our house and our neighbors houses that generated unwanted AC noise.....Through the power cables AND airborne.
Various power conditioners and better cables can mitigate the issue, but they can not totally eliminate it. And the older your houses wiring, the older the transformer on the pole outside and the older the wires coming into your house...The issues thatr your neighbors might have in their house...The worse the problem is.
But I think there is a solution.....Disconnect from the GRID entirely! In the last few years, the Lithium battery powered portable generator industry has been on a roll.....These devices have gotten bigger and better at far reduced price.
Basically what they are is a large Lithium battery and a well regulated DC to AC inverter all in one box...Not connected to anything but your stereo...You charge it with an AC charger when you are not listening to your system, and unplug the charger when you are listening...or, if you have the room, you charge it with a few solar panels.
If you are the DIY type you can buy a few LiFo cells, a BMS (battery management system) a good charger and a quality DC to AC inverter for around $2000....Loads of YouTube videos on this. Search Will Prowse on YT and plan on spending a few hours!
Be aware, this will not solve the RF noise issue from devices sending noise through the air to your cables....Short interconnect length, shielded AC cables and disconnecting as many wall warts, USB adapters and compact and LED lights will greatly help.
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Everyone always falling into the same trap of thinking there is "a" "solution". Sometimes posting this crap PC at work means not having italics, bold, underline. But we still have the scare quotes. So we put scare quotes around "a" and "solution" hoping people will get it. Sorry to sound imperious, but that is what scare quotes are for. Not the usual quotes indicating something someone said. Scare quotes draw attention to the words as opposed to the speaker of the words. In a perfect world everyone would understand all that means is we are never done. There is never "a" solution but instead only what works for now. It is fun and exciting to find the new one that works better than the old one. Solutions are like Porsches: The best one will always be the next one. |
@millercarbon, I was actually responding more to the rather imperious or arrogant tone of "Stop even thinking about it.", as opposed to the still negative and defeatist "There is no solution." Such sentiments serve only as impediments to advancements. I'm confident Al would agree with that. Judging from many of your other more helpful and considerably less churlish posts, I suspect you might, as well. Many people on forums like this are genuinely interested in obtaining guidance, furthering their knowledge and selflessly sharing their expertise and experiences. A little humility or modesty, especially in a teacher, goes a long way; not to mention kindness. Sooner or later, the faces of paragons turn to "alabaster when (they) find (their) servant(s) (have become their) master(s)". |
09-04-2021 10:42am There’s absolutely nothing wrong with adopting better solutions until that day of perfection either."There is no solution. Stop even thinking of it." - MC MC adopts better solutions himself, I heard his new TT. I’m guessing he’s had an off day or something? I'm not saying his comment doesn't have merit, it's a case of why stop trying to find better solutions - hopefully getting very very close to perfect. @rbertalotto - I like your Agon name, it has an Italiano flavor to it. |
@millercarbon: "There is no solution. Stop even thinking of it." You have much to learn, grasshopper. There is no solution because a solution means the problem is solved. But the problem is never solved. It is only made less and less of a problem. We still have people living in caves by the way. Just because we figured out how to build better housing didn’t solve that problem. If you find reality harsh, can the weakness and buck up. |
@millercarbon: "There is no solution. Stop even thinking of it." Wow! Does that sentiment really jive with the icon you've chosen? Maybe Oscar the Grouch but Al? If we all lived by that credo, we'd all still be living in caves and wondering where our next meal was coming from. Must've been a moment of weakness. Sounds too harsh, even for you. |
An isolation transformer will solve most of your AC noise problems. Check out the EQUI=CORE, https://www.underwoodhifi.com/products/equicore Alternatively for off the grid solution, look into S2500 or S5000 https://stromtank.us |
My streamer’s audio circuits run on batteries. Some of the best sounding preamps I have heard run on batteries. But I am afraid Millercarbon is right. Everything matters and there are going to be multiple components to running the battery power which will compromise the sound. I can imagine a line of components each with their own optimized battery power and charging system that may push the state of the art at some point. Doing this with an amp is now possible. Will be interesting to see… hear. |
Everyone always falling into the same trap of thinking there is "a" "solution". There is never one. And it is never solved. There is only ever good and better. Don't look at me, I'm just the one willing to gore the sacred calf. Over and over again. All there is, is everything matters. You cannot ever "solve" AC. Yes batteries are a lot better. We had a guy last year, had battery power for hurricane or whatever blackouts, he noticed the stereo sounded better on backup. That was using an inverter to get AC from battery DC. Even better is to use the DC from the battery direct into each component. Do that and then guess what? There will be something better still. There is no solution. Stop even thinking of it. Serves no purpose. Think only of all the different ways it can be better. Then pick one and do it. Which one? Whichever one you can do! Yes it really is that simple. |
Yes, I was using lithium ion battery portable generator on various audio equipment for some time. I long run I preferred running that equipment through my ac power conditioner. I suspect the inverters within these generators create their own noise which affects sound quality. Also, I find audiophile AC receptacles to be effective, these generators use pretty poor receptacles. I'd bet on audiophile lithium ion battery pack on its way. |