I am sure I've had it that loud, but I've never measured it.
I just lost my card for longer with that statement didn't I..?
I don't even own a proper SPL meter!
One post caught my attention earlier I wanted to address also...
120 dB
literally is the threshold of pain. To my understanding 85 dB average with room for 20 dB peaks (short bursts of 105 dB) is the thx reference standard. Play with that calculator I linked above to see just how much power it takes to hit 120 dB with your average (88-89 dB) sensitivity speaker. Even for short bursts 120 dB is getting into permanent damage territory.