I’ve had a Jackery Explorer 1000 in the system for a couple of days now and yes, the improvements are real. Just better across the board. I think the biggest improvement for me was the added three dimensionality. All the instruments and voices have acquired more corporeality, which leads the system just sounding much more realistic, as if the performers are three dimensional instead of flat, not extending past the plane of the speakers. I’m thrilled with the improvements quite honestly.I gain this super holographic dimensionality with my "golden plates" all along the electrical grid of my house....
But someday i plan to buy a battery and treat it with my 2golden plates" the results will be astounding i think.....
My best to you and thanks for your interesting review....