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

Ric - how much power will your amp be drawing from the Bluetti AC300? The AC300 has a 3,000 watt/6,000 surge inverter and is great in @veroguy’s system but his amp only draws about 90 watts. Its also gotten excellent reviews from the non-audiophiles who push that inverter to the max using it for emergency/ solar power. Really looking forward to your conclusions.

Great post, @ricevs - many great points there, and you reminded me of a few more things I've been wanting to try.

Regarding what you called a "zippy" sound:

I'll add to that a pronounced sound of "air" and other micro details.  It is impressive, and even seductive, that a system can reproduce and present that "plankton" (for lack of a better word) in a recording - and good systems can do this without it sounding harsh or fatiguing.  It's very cool, and my system has done that.  But in my opinion, it is not natural if you compare to hearing a live performance. 

On my own journey, with each successful change to lower noise in my system - that "zip" and air and pronounced plankton is not as noticeable.  It's there, but not a main player anymore - just supporting the artists and instruments.  

My experience has been that lowering/removing noise has increased realism which creates more frequent emotional responses to the music - for me.  Natural, organic realism is what I respond to most.  And being able to have that emotional response on demand is my goal.  

Happy listening to all.

ricevs,

I agree with much of what you just said.  My main question was about the bass from the Goal Zero.  Comparing to wall AC, Is it looser and fuller, in other words quantitatively greater but qualitatively worse as with old school tube amps?  Is it tighter but quantitatively less?  I assume you found that aside from the bass, the Goal Zero is more accurate in midrange/HF?

Still, noise reduction easily occurs when you roll off HF.  With crude Dolby noise reduction, I remember HF hiss was nearly eliminated this way, but information in the rest of the range was severely destroyed, creating lifeless sound.  The sonic effect is its own type of distortion.  So noise is not synonymous with distortion.  

We want LIFE to all the instruments.  For wind instruments, you want to hear the nice tone, but also the mechanical sounds such as keys, valves, spitting.  Some people seek to get rid of these extraneous "noisy" sounds, but all these sounds are part of the complete sound of the instrument and must be revealed although not exaggerated.

+1@ricevs I've been working at noise reduction for years what with all my battery experiments, dedicated ac lines, conditioning, and now with streaming.

Noise reduction in streaming is so linear to ac cleanup in general sense. You are describing the exact qualities I hear with my present setup. My streaming and cd rips no longer sound like digital, simply sounds like performers in room, and better than my vinyl setup due to higher resolution/transparency.

If battery power could outperform my rather intensive ac cleansing this would be comparable or superior to major component upgrade. At this point trying to decide if my next move will be another network filtering device or battery power.

Viber,

The bass using the Goal Zero Yeti 400 is looser but not fuller...there is the same exact amount of bass as with the wall. It has relatively high output impedance compared to big inverters so makes sense that bass would be affected negativiely (sounds slower). You seem to have one opinion of everything....."something is either detailed, tight and accurate or its loose bloated and slow". This is far, far from the truth of things. There are a million shades of grey and many sonic factors are independent of each other. You can have loose bass that is less, the same or more than tight bass.....tight bass can be small, medium or large and full....yes, listen to some bass playing live......depending on the room, instrument, whether it is amplified or not....bass can have infintie descriptions. IT IS NOT ONE WAY......expand your mind.......it it infinite.....However, we ARE ONE......but many are the ways and names.