Interesting to me at least. Anyway, as most of us know there's a button on the Vision designed to raise or lower the gain to make the preamp more flexible with different amps, and speaker efficiencies. I've always assumed the correct default setting in my situation would be with the button not depressed, or off in other words, because both units are AVA and presumably designed to work together. I find both settings fine, but the other day just out of curiosity I inquired of Google & Brave AI's which setting was best to use in my situation. Both said to use the button on or depressed because it gives more usable space on the volume turn , a better volume balance between channels, lower noise floor, and less strain on the components. If true, that's a lot. So my question is for AVA or anyone who knows, is this true?