I am using simultaneous speaker output (fronts) and Line out (rear speakers) for four speaker stereo on an RS520. This works but at a very low output voltage by default resulting in a too low volume for the rear speakers. HiFi Rose has a setting for the pre-out voltage inexplicably in the speaker settings area as well as the pre-out adjustment. If I set the pre-out voltage to any setting - even the lowest, the speaker outputs (front speakers) of the RS520 shut down. What the pre-out voltage is for in default mode remains unlisted (a mystery but it’s pretty low- way less than one volt). This is a problem because the required input voltage for most amplifiers exceeds 1 volt. Here is what Chat GPT has to say:
“In the context of power amplifiers requiring more than one volt to reach their maximum rated output, a “significant percentage” could be considered to be around 70% to 80% of power amplifiers on the market. This means that the majority of power amplifiers may require input voltages higher than one volt to operate at their full capacity.”
So, this is a plea to Rose to provide the option to have both the line output and speakers outputting simultaneously with output voltage adjustments at at least 2 volts. I liken this to the option in most amplifiers to have headphones on alone or with the speakers on as well.
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