Thanks for your answer. I agree on/already knew all that you said.
I don’t believe that I’ve said that a signal never can exceed +4dBu. I’m talking about constantly, everyt day, feeding the speakers a signal that is much higher than this. Exactly how high is of course hard to say, since I realize that the max output designates peak values rather than average values, especially if you’re not playing, I don’t know, white noise at the highest internal volume (that is, turning up all the mixer tracks to max), or whatever would be needed to get a constant signal of the highest max output.
We could remove the actual output volume (air beeing pushed around) from the equation all together. Just imagine that the volume knob always is turned down to zero, and that my overarching question is what voltage I can constantly feed my speakers before they break (if there’s a limit, which there seems to be).
I do understand that it’s no problem if you let the manifested sound volume be a sort of natural indicator that you’re inputting too hot of a signal (in which case the sound will be too loud for comfort, forcing you to turn it down). As I stated in my original post, however, I’m looking for a solution where the sound volume never can be louder than a certain dB SPL (where this volume is much, much lower than when you might suspect that the speakers are being damaged).
Yes, my thinking right now is that I’ll probably buy a hardware limiter that I place in between my Syntakt and my speakers, that I set once and then forget/don’t touch. This should stop any random peaks from getting through. I started this thread to ask for a suitable device.