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

ricevs,

Too many variables between the compromised Bluetti AC200P and the Goal Zero Yeti 400 with its woodblocks and PPT.  I thought you were using the Yeti with your front end only, not with power amps.  The most meaningful A/B you can do is between your Yeti 400 and your friend's Amperetime/Giandel, both used only on his front end.  Your Yeti 400 can't handle the power amps, unfortunately.  But maybe you remember the Yeti 3000 which can handle the entire system, and how it compared to the A-time/Giandel in your friend's system.  How did the Yeti 3000 and A-time/Giandel compare for just the front end, and the whole system, for bass and the other sonic aspects?

I use the Yeti 400 for the whole system...the front end components are hardwired into the inverter and I plug the power amp into it with a connector.......that is why I could not do the full system on both.  Who would A/B a $400 all in one with a $2800 giant Gaindel system?  No one.  As I have stated over and over again.......the Yeti 3000 was beaten by the Ecoflow Pro which was annihilated by the Gaindel system.  I have no idea how the Yeti 400 compares and who cares.....it is too small to use for most people and has a noisey fan (which I made silent by removing most all the casing).  My friend uses the Giandel sytem and used the Yeti and Ecoflow on his entire system.  Get out of your head!!!!  Just do it!!!!!

The Entech will tell you something but not much.  People are already modding the Puritan 156 (which would not even measure with the Entech). and getting better sound (and that better sound has NOTHING to do with a measurement).  We are talking better jacks, better wires and Fo-Q treatment.  I will be installing burned in Furutech outlets and inlet and better wire on my friends Puritan 156 next Wed.  Most things that make for better sound CANNOT be measured.  An inverter that measures lower with the Entech may sound way worse than one that measures better......this game is complicated.

Why not use a 36 or 48 V battery and connect it directly to your amp's internal diode bridge rectifier, bypassing all troubles from 110/240V, inverters and what have you? It'll be a lot cleaner, and cheaper.

@rudyb This is exactly what my N.E.W. DCA66 class A ss amp did, and this all back in late 90's!  It was nice to have an off the shelf all in one package offering, thought I would have seen more offerings in such a package over the years.

ricevs,

I still don’t know what you mean when you say the Amperetime/Giandel is "better" than the Yeti and Ecoflow. To me, "better" means more clarity/resolution in the entire freq range, but to euphonically oriented listeners, "better" means warmer and rolled off, etc.  If you say the Goal Zero sounds a little soft compared to the Bluetti you tried, I would probably prefer the Bluetti.  You say the Bluetti is "zippy" compared to the Goal Zero, but Bluetti owners here have not found them to be "zippy."  More advanced Bluetti options put them in a similar price range as A-time/Giandel.  Did your friend A/B these Bluetti's to his present A-time/Giandel?

This discussion is not at all like a typical discussion coming from Jay, where he claims that expensive invariably means better.  We are out to find battery/inverter solutions at 5-10% of the price of the Stromtank 5000, the only S-tank unit which can handle an entire high power system.  If Tom Lyle found the Goal Zero Yeti 400 sounded identical to the Stromtank 2500, that implies that the S2500 is a little soft, like the Yeti 400.  Is the A-time/Giandel more like the Bluetti for resolution at all freq?