Oh dear. I had mine on low gain around 9 or 10 o'clock!
I'm starting to think that orthos aren't for me. I get a feeling they don't shine unless you're listening loud. However, my eardrums are quite prone to fatigue so my loud listening sessions last only several minutes.
I guess orthos start to really sing when driven with some power - you get some real details, authority and bottom end, IMHO these are not for quiet listening ...
remember that used volume depends on your source output level ! having something like 1V rms vs 2,5V rms requires completely different volume to achieve the same SPL from the amp
even 2W from ef-5 is nothing for he-4 (Lyr has 6W and it has to be cranked at about 2-3 o'clock to get amazing drive for some serious listening), there is no sign of fatigue, this is distortion free, open air type of sound, very natural in my opinion comparing to something like grado where I couldn't take them more than 1 hour of listening even at mid volume level having some nasty ringing in my ears (never again)
Edited by magicman - 8/4/13 at 3:00am