thesheik137
1000+ Head-Fier
how much more power does it need? More than 110dB then RIP your ears. Pretty much all the instruments and frequencies will be exposed at 110dB.
It's really not about how loud a calculator tells you it will get because you are just using an average impedance. In reality there is an impedance for different frequencies of the driver. If you look at the graph above the bass regions of the R70x will swing up to 900ohms. If you have a weaker amplifier the cans will still get loud but the frequency response will be skewed.R70X bass response is likely to vary greatly based on amplification due to it's absurd impedance graph: