Hi guys, I am using REW for a while now and successfully optimized low-end frequencies in my HT in combination with the awesome MSO multi-subwoofer optimization tool. I take measurements @about 75db as recommended, however, I am wondering if the sine sweep can potentially damage tweeters because the sweep concentrates complete energy at a single frequency at a time while real music or e.g. pink noise distributes energy across a wide range. Is it safe to run sweeps up to 20kHz? If yes, is there a maximum length of the sweep that should not be exceeded? By the way, is it correct that REW internally sweeps up to the double of the configured frequency? Thanks for your help!