[Gisle Faugstad]

YES - in my opinion it's absolutely no doubt about that. Even my ultra-cheap EE-45 8OHMs (70mm & SANSUI SS-2 Fakes) are absolutely astonishing to listen to. I've never ever been happy with over-ears that have smaller drivers than 50mm. My Pioneer Monitor 10s have 57mm and are an industrial masterpiece! So is my super laid back PM-3s by OPPO (55mm). The Momentums and P7s can't even dream of creating such a SS AS the other over-ears I own (Momentum "mkI" are actually quite bad and should be placed in over-ears (age 3-9 years) or on-ears! I've "tried" 2 let specialists convince me that I'm living in the middle age due to my theories of moving air and separation, detail-richness etc., but as Tom Ford replied within fashion when the less is more statement was in the spot: MORE IS EVEN MORE!

 

[Gisle Faugstad]

Are larger drivers harder to power?

Absolutely NOT! My 70mm'ers are 8 Ohm

 

[obobskivich]

Absolutely NOT! My 70mm'ers are 8 Ohm

Impedance != "difficulty to drive" and 8 ohms is quite low, and will demand quite a bit more current than most contemporary headphones want. Many modern headphone amplifiers won't like a load that low, especially if sensitivity is not very high. However for the resistor-coupled jacks on receivers/amplifiers of the 1970s and 80s (well, and today, to some extent) it should work just fine.

I agree with my original posts in this thread, made some 4.5 years ago, that by itself driver size is not enough information as to whether or not a headphone is "better" or "worse" sound. I'll agree with Gisle Faugstad that, generally speaking, better headphones have bigger/better drivers and sound better vs more compact models, but that isn't an absolute ime.

 

[zazex]

IMO my Grado RS1i (driver size 41 or 46mm, not absolutely certain)
sure sound better than the 53mm Audio Techinica drivers, the 50+
Philips X2 drivers, and a whole bunch of others which are larger...

 

[RenZixx]

Well I think focals 40mm drivers defy everything haha.