Kind of curious where you guys believe the voltage requirements for a pair of headphones should be for suggesting amps.
Up to now, I've always been basing it off 110dB as a reasonable SPL cap and basing my voltage calcs based on that.
Thinking about it, though, I feel like it isn't a safe estimate for the total voltage headroom required for audiophiles, if only for the ReplayGain with no pre-amp wrinkle. If you've got dynamic classical pieces which get RG of very low or even positive values, pre-amping probably isn't the best idea.
The largest negative track gain in my library is -15.64dB. Let's call -16dB as a reasonable floor.
Doesn't that make it more logical to set the rule of thumb around 120-125dB or so to account for ReplayGain? It seems like where the actual "110dB Rule of Thumb" ends up after accounting for ReplayGain fighting with the loudness war.
Obviously, this isn't accounting for that you shouldn't be listening that loud anyway, but some people do like to listen loud, and I have to take that into consideration when giving amp recommendations to people.
Edited by SanjiWatsuki - 12/2/13 at 11:21pm