06-15-2025 Post does not mapped to Knowledge Tree Bill Kensington, NH Posts 132 Joined on 03-15-2010 Post #: 21 Post ID: 28259 Reply to: 28247 Thank you again As written above, Romy came over the other night, and once again his acumen and ears elevated my sound system once more. My equipment list is to numerous to mention, including  1. multiple ac filtering units, including purepower 2000,and Niagara 2.Trinnov preamp processor for crossovers, time alignment and phase control for my main self built Edgar style horns using Vitavox mids, tannoy red tweeters, and five foot straight horns with dual each electro voice 12 l drivers. Also time and volume alagning a 7.5.5 surround, using Auro 3D primarily.this unit allowed us in one hour to do changes to the main channels that would have taken possibly months to recreate using analog components and time alignment speaker movement. 3. Four of Romy's magical ampx units to power the main speakers with various less than audiophile amps for the ambiance channels. 4. Less than audiophile quality long run  professional xlr cable and speaker wire. 5. Self built audiophile quality windows computer using Fidelizer to transmit hard and ssd disk files from my stored CD's, 24/96 digitized Vinyl, dvd, and 4K Blu-ray and several hundred second generation 15 ips masters from several of the New York based major record producers from the 50 and 60's. But this night we listened through my Auralic S1 streamer due to convenience. Normally we listen to a variety of my digitized recordings from my self built computer using fidelizer and J River Media Center. When he came he seemed upset as he thought that the system was not on. After 5 minutes of discussion, I finally convinced him that Al 20 amplifier channels were on, it was so quiet. Must have been a good electricity day, although the sound was a little darker than it was after the last session with him. I swear I had not touched anything since. So we spent the next half hour listening and adjusting the trinnov main speaker settings, adjusting the frequency curve, the crossover of the mids up to 9000 Hz. And adjusting the phasing and tweeter and mid bass  volume. I hope I’m smart enough not to touch anything again, as the sound took another step forward. After he was done the sound was good enough to last me for the rest of my shortened life. While it does not have some of the qualities of his two systems, it good enough for me and far superior to what I had a few years ago, before having him over. He really should run an audiophile system tuning company.Thanks again, Romy.

07-12-2025 Post does not mapped to Knowledge Tree Bill Kensington, NH Posts 132 Joined on 03-15-2010 Post #: 22 Post ID: 28294 Reply to: 28259 Solar Several months ago I decided at 78 years old to go ahead and do a solar electric install. While costing $56,000, most of which I’m sure I’ll never see a return due to my age, it was well worth the investment for my audio- video system. The system is from Enphase, probably a Chinese commie company, with a large Franklin Electric lithium iron Phosphate battery for backup.  When either the panels or the battery are running, the street electric is cut off. The battery can power the house for several hours during the night.I have to say this is one of the best investments I’ve done for my system, rivaling those taught to me by Romy. The sound is the most natural I’ve heard with my system, ven beating what Romy and I heard a couple of weeks ago. At any time of day for the past two weeks, it has been glorious. No further good and bad listening sessions. Plus the sound now is not just pure, but natural, and draws one into it. With the best recordings, especially using Auro 3d, there is absolutely no noise coming from my 105 dB sensitive Edgar designed horns even when the ear is up against the mouth. Overall, the improvement is well worth the cost even if I don't live to see a financial payback. I've as yet no heard any negatives, xcept to my bank account. Next time Romy comes over I’ll let him described what the off the grid sound is like, as words fail me at the moment. Bill

07-12-2025 Post does not mapped to Knowledge Tree anthony Posts 356 Joined on 08-18-2014 Post #: 23 Post ID: 28295 Reply to: 28294 Enphase 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.

07-13-2025 Post does not mapped to Knowledge Tree Bill Kensington, NH Posts 132 Joined on 03-15-2010 Post #: 24 Post ID: 28296 Reply to: 28295 Thanks For the reply. Glad to hear I’m not the only one with this information. My system is set up to completely disengage from the line when there is sufficient battery power a night and the panels are producing more electricity than the house is using. Plus my system has its own ground pole behind the media room, and I am using the purepower pp 2000 to further clean, so that could also be the difference. Hope this information gets others to try solar battery backup.