Originally Posted by swifty7
the problem is getting too many conflicting reviews for both the he-500 and K712pro. I'm leaning more toward the k712pro but I want it to be a substantial upgrade from my ath-ad900x.
well swifty7 frankly speaking if you are looking after a substantial upgrade over, then k712 pro is not the one for you in comparision to 900x.
Reason : The K712 might be expensive compared to AD900x more than double the price of it but doesnt hold in that regards meaning the price to value comparision especially when you compared it to a good headphones from AT like AD900x .
Remeber AT hp's have always been very good at MIds & Treble. AD900x mids & K712 mids are almost on par , it will be upto the user who likes more mids of which headphones .
Bass-wise ...AD900x is more punchier & tight & K712 are more fuller & deeper.
Treble - Ad900x has more sparkle to it , K712 is perfect but the added sparkle of at900x is also v.good due to which these headphones are more Airy.
Coming to resolution & clarity of sound this goes with a little to K712 but more than double the price is too much for it.
Soundstage : AD900x has clearly more soundstage ,Many say that it is artificial but it is nothing that artificial , it is better & people saying such thing because they want to hype their owned headphones more .Remember these hp's have such addiciting soundstage that when you move on to other headphones you really want that type of soundstage (being myslef an owner of Ad900 once), but I say that K712 soundstage isn't big like 900x but it still is fine that shall satisfy your tastes.
Comfort : Both are on par.
Now coming to He500 , will also include He400 :
See now these headphones really justify their price range , the first thing you will find in them is their outstanding clarity which is not reached by both 900x & k712.
i will keep it brief ... HE hp's lack soundstage though insturment spearation is great . Treble is better with AKGs & Mids of both are great , its just akg's are forward compared to Hifi's which causes many to call HE500/400 mids to be recessed or V-shaped.
But at resolution clarity detail retrival dynamics insturment spearation & bass , this is what He500/400 really outstand the others.