pauly, I plan to try my digital front end and then my phono amp and turntable. I’ll try those first, plugged directly into the battery and then through the passive line conditioner. The ECO is affordable by comparison to the other generator’s and if it does the job of powering everything besides my amplifier, then I’ll be happy.
I can say the ASR that I own is highly thought of by many in the audio community and their flagship components consist of the larger amplifier, two power supplies and the battery. Purchasing the power supplies and battery is costly but it raises the bar sound wise. I do not doubt that your hearing a difference with your amp connected to the battery. I believe that at some point, interchangeable, after market battery units specifically for audio equipment will be common place.