Stromtank S2500 mk II

Apologies if my non-user opinion is not invited, but my findings and opinion may be useful.  

I've researched clean AC power a few years ago. I've come to the conclusion that battery power is the quietist source of AC power and that Stromtank was an established proven leader.  However, battery power is expensive so a large enough unit is costly, so much so that the cost is usually better served with a significant component upgrade.  For my situation, if I had the funds to buy a Stromtank large enough to handle my amps for hours OR sell my electronics then purchase my ideal end-game electronics, I'd choose the later. But price no object - Stromtank.

Dang, now you got me lusting for that lower noise floor. But the room has to be good enough to hear it. Double dang, I'm now lusting for a dedicated audio room - proper sized of course. 

anyone actually hear it?  I had battery powered components and they always sound incredible so I was going to jump on this but then I realized, its still AC - not DC, so do not know how it will sound compared to DC battery powered gear.  

.......what I am learning is that it I think that it is still AC power going into your system as the Stromtank is essentially a regenerator but uses Lithium batteries as it source. The Stromtank is also able to switch from AC to DC battery mode when needed or during recharging of the battery which can occur even while listening. Great idea with a cost ......please correct me if I am wrong.   

The Stromtank is nothing but a low distortion sine wave inverter and battery and charger in a box.....and marked up a million times and made to look good so audiophiles will spend tons of money on it. Have you heard of the Giandel inverters? You can buy a 5000 Watt pure sine wave inverter for $900 (2000 watter for $329) and then add as many Lithium batteries as you need (you also need a good charger....maybe $1-300). If you have a class D system then one 100 amp hour battery will last you all day. These things are amazing. Please see my website for details....no, I do not sell them. Check this out....says it sounds as good as Stromtank for $450.....and I use a modified version of this thang (I cannot afford a Giandel....but will take donations to buy one):

https://www.enjoythemusic.com/magazine/equipment/0119/Goal_Zero_Yeti_400_Lithium_Portable_Power_Station_Review.htm

If you add a Puritan line filter after the Giandel then you get even lower noise.....then add your own ground rod for your stereo and a filtered ground system like Puritan has......you will hear things you NEVER heard before....goosebumps on top of goosebumps.

Or you can spend a TON of cash on a German StromTANK.....he he.....maybe a Panzer in disquise? The only thing you get with the Stromtank......is that when it runs out of battery power in automatically switches to the wall.....Woopie....so overjoyed at that advantage.

Please check out my website for lots of info on Gaindel and Puritan.

As always......please remember that you are loved and adored by God, and your very own self.  Enjoy this moment.....it is the only moment that you will ever have....this very moment.  Feel the beauty that you are......take time to acknowledge the beauty in each other......we are all magnificient!  You are just as beautiful today as when you were first born........Baby yourself.....you deserve it.