Hi guys, so I'm in a blind here. The manual says that headphones output is 82mV at 8 ohms and 7.64V at 100 ohms and nothing more but most headphones have rated power stated as mW not mV - so how do I understand this? Can someone help me a bit? So far I've driven low impedance headphones on this amp (vintage Pioneer headphones from what I remember and they had like 8 ohms if I remember right!), 32 ohm headphones, 40 ohm headphones and 80 ohm headphones and it did seem to drive them all well. But right now I have my eyes on 150 ohm headphones and I started to wonder if it will be okay to use them with this amp. Thanks in advance for replies!