Does anyone understand the preset 1 and preset 2? The manual is not clear as to what would be the default settings when I turn on the preamp. For example, I use Auto Speaker Setup using the microphone and store the settings in preset 1. Then I manually use the SPL to adjust all channels and store the settings in preset 2. Now, when I turn on the preamp, which setting will it use? the one in preset 1, or the one in preset 2? If I call preset 2, will it remember my selection the next time I turn it on?