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In the Forum: Horn-Loaded Speakers
In the Thread: Bill Gaw: over 50 years of high-end audio experience and time aligned horns.
Post Subject: EnphasePosted by anthony on: 7/12/2025
Bill, good to hear. Enphase are from California but your batteries, inverter etc. could be from anywhere. I have an off-grid Enphase based solar/battery system for my office which includes the audio/video. My improvements are not in the same league as yours, by the sound of things, which could be because we are 240V mains here hence about half the current draw. Things still sound better at night and I can even tell when the sun is out and when the solar is not producing due to subtle changes in the sound. To combat this I have installed a large balanced isolation transformer with high and low frequency AC filters to provide cleaner differential power after the inverter, however I am yet to connect it as I subscribe to the "one change at a time" and there is too much other stuff to sort first!
One benefit here is that the voltage is now 100% stable at 240V which means that my electronics are operating exactly as they were designed. My favourite dac has a triode gain stage and before the solar/battery system the bias wound wander with the mains voltage causing sound changes. Now it is perfectly stable and the sound does not really change.
My batteries are also LiFePO4, made in Australia, and I use a Victron inverter. Could have done it cheaper using asian batteries but where possible I prefer to support local business.Rerurn to Romy the Cat's Site