Wow, lots of false information from some of the members. Like "all power conditioners restrict current flow", " there are only two on the market made for power amplifiers". Some of you guys need to open up your knowledge base.
Any way, I have a Synergistic Powercell 10SE. These are made with no chokes or filters. Aside from how it is made, I really like the unit for source components. I get better detail in all the sound, but especially like the background ambiance, which is normally suppressed. It also separates instruments better than six other conditioners that I have here. For amplifiers, I get better results by keeping the 10SE separate. I do use a Tranquility Base made by Synergistic, under the amp and power box to the amplifier, along with a Shunyata Alpha power cord for noise filtering. I have not tried one of their newer four outlet version of the Powercell on the amps. I would definitely try one of their power cords first, as Synergistic has many to choose from. My experience tells me power cord choice is most important for amplifier sound quality over conditioners. Plug in filters at the receptacle where the amp is plugged in, are ok to very good, depending on the design.
Hope this helps.
