I have my whole A/V system including my 2 three channel Butler amps plugged into a BPT balanced power conditioner that's plugged into a UberBuss parallel filter conditioner. That's how my system sounds it's best and I have no intention of ever changing this setup regardless of what others say about current limiting or loss of dynamics. I find it to be just the opposite and I'll go by what I hear, not what I read. I suggest you try all options and make up your own mind.
As far as Maher parallel filters are concerned, they're a fart in a hurricane when compared to the Buss's. Sure they work,,, if you want to buy 6-8 per home circuit plus 1 for each component,,, and you like to ride the Maher-go-round of everexpanding moneymaking pyramid product structure. Or buy 1 large parallel filter and be done with it. And yes I STILL own 13 Maher PE's which are on every nonaudio circuit cuz they're not needed in my system anymore. Plus I hate selling what I have in my hand,,, just like Lonewolf's room full of gear.
I'll also add that my system already has 27 Bybee's which I truely love so I have no need for the newly improved parallel filter or any other product that has a Bybee added from Maher, it's reduntantly unnecessary for myself and I have a true dislike for pyramid businesses who prey on customer loyalty with the next groundbreaking product,,,, please give me a break!
Cheers,
Robin