07-13-2025 Post does not mapped to Knowledge Tree Paul S San Diego, California, USA Posts 2,778 Joined on 10-12-2006 Post #: 26 Post ID: 28298 Reply to: 28297 What I have heard My own limited experience with the house-sized solar and batteries is that the biggest improvements came from dedicated, "home run" audio circuits with a good bleeder ground for the front end. Mark's old solar system sounded best to me when the mains power was good. I run my own DAC from a dry cell motorcycle battery, bleed off any stray current. It is 12V, as Romy mentioned. That "works". Paul S

07-13-2025 Post does not mapped to Knowledge Tree Romy the Cat Boston, MA Posts 10,377 Joined on 05-28-2004 Post #: 27 Post ID: 28299 Reply to: 28297 Who knows?. Bill, I do not think that what you describing is contribution of solar power. The actionable factors in your playback is new regenerator and new battery. They might be good and bad but you also need to take under consideration the following. The Purepower regenerators that you use most likely at this point not functioning properly as its own battery are gone. As acidic battery is getting old their impedance increased and they stop filter AC. So, your generator, unless you changed after 5 years, the batteries is substantially compromised. Very much like mine. If it shut down power, it's not capable to maintain charge even for 1 second. It means the battery is garbage in my unit.  I've sent me intentional response to fix it because I do not want to buy those 8 ampere batteries but I would like to buy bank of automobile batteries. My playback now is not 16 KW and many tubes, by mostly solid state and low voltage 12x7, so I perfectly fine can run it from battery for a long time.  The remaining question is the Media of regeneration. The contemporary regenerator supposed to be better than 25 years ago... Hypothetically. Alsa, contemporary batteries are order of magnitude better than old solid battles.  Maybe it Worth to review the performance of PP and try to find contemporary alternative product. Or it might make sense to retrofit PP with new big battery. One way or another I would not use PP and your new regenerator together as those digital converters have a very ugly ways to talk to each other and typically more than one regenerations in run installation never sound properly.  But, again, it is freaking electricity. Nobody knows anything. "I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche

07-13-2025 Post does not mapped to Knowledge Tree Paul S San Diego, California, USA Posts 2,778 Joined on 10-12-2006 Post #: 28 Post ID: 28300 Reply to: 28298 Same-Phased Just wanted to add, Mark's dedicated home-run hi-fi circuits (hot, neutral and ground) were all the same phase (120V). Thinking at first this stuff should be in the Electricity thread, but it already is, several posts on this there, for anyone who's interested. Paul S