Power conditioner types

Hello,
I would recommend the Puritan PSM156 or the PSM136. You can now get a silver faceplate. This thing really makes a difference in the sound. It sounds like someone took off the cover off of your speakers that was blocking the sound. Plus, it help your whole system even if you plug your amp directly to the wall as long as the Puritan is on the same breaker by filtering out tons of hash or impurities. It does not store power like my old Monster 2000 used to do. I used to have a 20 and 15 amp Furman. The Puritan helps so much at producing perfect sound it’s not even a comparison. Plus, Most power conditioners have banks of four outlets. Every outlet on the Puritan PSM156 or 136 is discrete. All of the filtering with none of the restrictions. I bought mine at a dealer in the Chicagoland area called : 
https://holmaudio.com/
They let you try before you buy which I did. I tried it and bought it. I knew I could not live without it in my system. Plus it comes with a nice power cord unlike the AQ Niagara. You have to buy theirs. I hope this helped. 

Hello,
I just buy once and cry once. The 136 is the lowest I would go in the line.  Later down the road try the Ultimate XX 20 amp power cable to replace the Classic cable which is still an excellent cable. The store I buy from lets you turn in your Puritan Classic power cable for the 15 amp version. I was so impressed I bought two 156 conditioners. That is how good they are. I am waiting for delivery of the XX power cord. One thing:
they need 10-12 days to fully break in. I call it the twelve days of Christmas. On the last day you get the best gift of all. Perfect sound. If you are near the Chicagoland area this store lets you try the Puritan before you buy. https://holmaudio.com/
They also have a new product called the Routemaster coming in a week according to them.  It is a grounding station like other companies have except you can create a new ground for your system utilizing the product called the Ground Master. I have not done this yet but I will before summer is over. I am told you have not listened to this kind of black background.