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.