Using battery power to go off the City's power grid

Oy vey, flywheel power backup for the home and refurbishing them in your garage? Not satisfied with audio stories we are making up power ones too?

Flywheel power storage is for extremely high power density as opposed to energy density. 10's to 100's of KW in a small size, but not for long. Minimum price is very high and no one is refurbing at home. Spun up they are a bomb not figuratively but literally.

goofyfoot,

Just read the posts by ricevs.  Look at his website, tweakaudio.  Click on the golden inverter button.  He notes his experience with Goal Zero, and his friend's better results with Amperetime batteries and battery charger, Giandel inverter.

What were your findings comparing your ASR amp with and without the battery?

My Phono Stage runs on batteries that charge only when the unit shuts down. Certainly, with such low signal levels there is a noise advantage and maybe a transient advantage. Doing a whole system based on a total of 4800 watts of Class A power is another story. It would take a large bank of lead acid batteries, a charging power supply that would have to be disconnected with use and a very big inverter. That is a lot of expensive stuff for minimal benefit. Good power supplies do not let much of anything through. 

mijostyn - "Doing a whole system based on a total of 4800 watts of Class A power is another story." What do you have that requires 4,800 watts of power? For instance, my 50 watt Class A amp draws 300 watts and the rest of my system including a tube preamp, DAC, streamer, reclocker and various accessories draws about 150 watts - so a total system draw of 450 watts. 4,800 watts seems WAY too high.

mijostyn - I just checked out your awesome system! Very nice. Your Parasound JC1 monoblocks draw about 250 watts each at idle and may draw up to 1,200 watts each at full power. So your amps, potentially, may draw 2,400 watts if completely maxed-out when used with your SoundLab speakers. There are definitely powerstations out there that can handle 2,000 - 3,000 watts off grid. The Bluetti EP500Pro, for instance, can handle that load and costs about $5,000. Not cheap but nothing as compared to the Stromtank offerings. As to getting "minimal benefit" for going off-grid for your whole system - all I can say is you need to hear it before passing judgment. The benefits are substantial.