Pani- Yes, the PurePower is different. The stored power available on demand in the massive batteries is probably the reason the dedicated lines, the Maestro outlet and the expensive power cord from the wall to the 1050 did not show any audible difference. IMO of course.
What I really like is that this regenerator allows high power amps to not only be connected to the unit along with source components, they actually end up performing so much better! I went back to the research I had done before my purchase and I remember this excerpt from their website helping me make my decision:
"The PurePower AC regeneration design provides something you might not expect from a power solution. Many power filtering and conditioning products are routinely accused of limiting the current flowing though them, thus starving the power amps with their need for lots of instantaneous current on demand. Testing shows how the PurePower actually has the capability to deliver more current that even a completely unfettered and unfiltered household outlet. In the Bryston equipment test measurements shown above, the 9B SST demanded AC to produce the required output to the speakers. The Amp drew 3.88 amps at its peak demand. When powered from the PurePower 1050, the amp was able to draw 5.6 amps at peak! That's almost a 50% increase! This is possible due to the nature of our AC regeneration technology. One of our primary goals is to be able to provide for maximum current variation on demand without allowing the sine wave or voltage level to be adversely affected. While you want voltage to be rock solid, noise to be at a minimum and the sine wave to be pristine, you also want to be able to have the most current possible available exactly when it is needed. The more instant current change you can provide without affecting any of the other power variables, the better your system can perform. "
