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
Here is something, that amazed me. I use Tripplite 2400s. I use a few different brands of gear. ALL my Mac gear works perfect, no problem plugging into the conditioner. I have Parasound Zpre3, It doesn’t like the conditioner, It looses, a LOT of the dynamics, top and bottom. Plug the thing direct into the wall, sounds wonderful. I use just a surge protector on it, sounds perfect...

I think the better the Power Supply in the gear, the better they respond to a conditioner. Not uncommon at all to scrimp, there, even in high dollar equipment. I’ve just NEVER seen it in Mac, 25 or so pieces, no problems.
The Parasound, older Marantz, One pair of Carys (6 pacs) don’t sound as good. Cary V12R, it works perfect on a conditioner. Again different Power Supplies, even within the same or close to the same manufacture Cary/AES.
The two respond differently, to conditioners, ones fine ones not..

Regards
So if wall warts go into the dirty zone, does it also mean the DAC and the record player? Only amp and CD player have grounded power cables so they go into the clean zone?
For the sake of ground loop issues, all on he same plug, 2 plug outlets, one for the conditioner, one for the surge protector.

Regards
Sooo all devices go into the conditioner and the conditioner itself goes into the surge protector? 
I was thinking of doing this: having two plug outlets with each having a conditioner with built in surge protector. One will be the dirty zone, as per @erik_squires example, the other the clean zone. The clean zone will handle the amplifier, the dirty zone will handle the rest (DAC with wallwart, CD player with grounded cable, record player with wallwart, streamer without grounded cable).
There are two outlets on a normal 15 amp outlet. Use one for the conditioner, maintainer, suppressor and one for just a surge suppressor. Not one into the other. Same outlet (circuit) different plug.

Regards