UPS vs LPS

I mentioned this in other posts. I run some equipment off lithium ion power supply, the inverter is indeed noise and affects sq. The LPS can be run off the UPS, which I do, the sound quality still impacted by inverter.

I assume audiophile UPS may be on way, someone will attend to inverter quality.

Thank you.  It seems my investment on the UPS is wasted due to my ignorance.

I understand UPS for backup power only, per above AC>DC>AC=inverter issues= sq issues. True battery power, AC>DC off battery supply specifically designed for that particular piece of equipment. I had NEW (Nirvana Electronic Works) DCA 66 class A SS amp back in 1990's, ran directly off four 12v lead acid batteries, another example is my Merlin VSM-MM BAM which runs off four 9v batteries. AC in these cases purely to charge internal batteries. Gets one off the grid without the added inverter.

That's like cherries vs oranges.  Give me a break.

What about noise from transformers at the pole? I would imagine that a UPS would calm that noise down, perhaps replace it with its own, and then the filtering of decent power supply in the sources.