I have had a Gigawatt passive power distributor in my system for several years. The Transparent Audio power distributor was sleeping in a cupboard. My brother has a Gigawatt power conditioner and brought it to my place. The addition of the Gigawatt power conditioner did not yield any material improvement. I guess this is due to the fact that I have a dedicated line whereas the power conditioner is a must at my brother's place. I have a friend on this forum, Flyer, who could not part with his Gigawatt power conditioner as well.
The Gigawatt passive power distributor, though a great product, is not in the same league as the Ansuz.
I had the Ansuz D Power Distributor for two consecutive trial periods of one week each. During the fist trial, I connected all my component sources and the preamp. The improvements were already substantial. For the second trial, I also hooked the power amps. The improvements were even higher, hence my move to acquire the D Power Distributor and two C power cables (one for the Power Distributor and one for my phono stage). Ansuz products are not cheap but they are bringing tangible benefits (at least in my system).
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