Power Conditioners


Not sure if I placed it in the correct topic but here goes. I was just wondering how power conditioners work, as I want to buy one. There are conditioners with only filtered inputs and conditioners with some filtered inputs and some unfiltered. I believe the unfiltered ones are for analogue devices. But why should these go into the unfiltered part? If I buy a power conditioner for example with only filtered inputs, will I not be able to put my class A amp in? Or will it have a negative effect?
sjeesjie
again. Snake oil. 99% of electronics will already rectify/filter 99% of the noise out of the PSU dc lines reducing down to a miniscule ripple. You will not hear any difference.

İf you are hearing a difference, you must live somewhere where your power company should be taken to court for not being able to provide even the basic service. 
So you do have a noise issue? Is that correct, noise issues that you can hear? Usually ground loops and routing. I've heard some NOISY systems behind lazy cable routing.  A wall wart won't make noise go away when it's a routing issue. Though I've seen a LOT of folks try.. LOL

We never had lightning strikes closer than 50 miles from my home, either until a month ago and lightning stuck a house two block away. Lightning strikes on the mountain, not uncommon. That same round caused some serious brown outs, black outs, and then surges, coming back on line.

It’s your equipment, me, it’s safety first, I protect equipment by maintaining the voltage, 120 on the button. I’ve never had a SQ issue, noise issue, or loosing expensive equipment because a LACK of protection. I just don’t do it. There is NO reason to lose anything..
I’m a mechanic, I stay out of trouble, NOT get out of trouble...

You keep saying "in phase" do you mean on the same rail at the main, your loosing me here. ALL on the same 120 vac rail? There are two 120s and 240 vac between the two. 240 vac single phase.

Regards
You keep saying "in phase" do you mean on the same rail at the main

Google it my friend... maybe it’s different in America? 

again. Snake oil. 99% of electronics will already rectify/filter 99% of the noise out of the PSU dc lines reducing down to a miniscule ripple. You will not hear any difference. 

İf you are hearing a difference, you must live somewhere where your power company should be taken to court for not being able to provide even the basic service
100% pure, unadulterated ego speaking here.

If I built it, no one can improve upon it. Instead, look at it this way: something's come along that can truly allow my gear to shine the way it's supposed to.

It's obvious you didn't read the link I provided.

All the best,
Nonoise
+1 @nonoise

Far too many people here post based on belief, not on experience. Of course, i can understand that because I used to hold a similar belief.  It’s true that some of us live in noisier environments so they might benefit more from conditioning.  However, it’s also true that the grid itself is a very noisy environment. 

I ended up buying an Audioquest Niagara 5000.  I was told by the dealer that every person who’s auditioned it at home has bought one.  I plugged it in and the difference was dramatic and obvious within seconds.  No placebo here either as I was skeptical and expecting marginal to no difference it - I’ve owned and auditioned several other conditioners in without such significant results.

I’d suggest what is always reasonable advice - try one in your own system.  If you don’t like the results for cost, move on.  But, fairly significant improvements are available - in addition to protecting your gear.