Search results

30W at 8ohm, but the 712 has 62 ohm. there is also an aditional resistor on the headphone output. i can't say what is the actual output of the headphone out

It seems to me from the graph that the dip is more at around 3.5 k not 4.5. Btw, I have those headphones (lucky enough i found them at 100$ used). I think that the dip coresponds to a higher sensitivity of the ear in that region so you won't really hear it. What i found using those headphones...