This morning I decided to do a quick comparaison between the ALO-780s and the Grado 325i, my 325i are currently on sale and I just wanted to be sure that I wouldn't need them in the future..
For this comparaison I took the album In Absentia from Porcupine Tree, probably one of the most dynamic album in my collection.
Equipment:
CD Player : Marantz CD5001
Amp : Little Dot MKIII
Tubes : Tung-Sol 403B
Normally with this setup, the Grado 325i are really good and the trebles are not harsh at all
Ok after listening the complete album on both headphones I am now 100% sure that I won't need the 325i in the future, don't get me wrong they are really good on this setup but the ALO-780s are slightly above on every aspects. They have a better bass, a little bit more details (yes I'm suprised..), more soundstage and the treble of the 780s are IMO as good as the 325i.
With the right equipments, the ALO-780s are soooo good

(I can also say the same statement about the 325i

)
Cheers