I recommend the inverter route.....I have the Yeti 400 (modded) on my modded Oppo 205 and will be adding a modified 2000 watt pure sign wave inverter on my class D power amp. Cost will be about $800 including a battery and charger. Then I will be completely off the grid. You still need to use the PPT stuff......still makes a big difference.
Going Battery Powered
I have a number of components that run off of 12V DC power. This includes my DAC, preamp, tube buffer, etc. I’m looking into powering them with batteries instead of 120V AC power supplies. Does anyone have any input on if this is worth my time? Seems like DC power is the cleanest power you can get in this situation. I’ve heard batteries can have reduced dynamics but I plan on using as big of a battery as is reasonable, most likely a large sealed AGM type battery. Do I need power supplies/voltage regulators if I use a large battery and only power low draw components (no power amps); e.g. the max amp draw is probably around 1-2 amps, if that. If I do, does anyone have a link to a design for the power supply/voltage regulator? Thank you.