There really is (and has always been) ONE HD25 only, as far as specs are concerned. They all have the same innards.
At one point there were 7 or so versions and then came the Alu Anniversary edition.
They now have the Classic, Lite and Plus. The difference is still only in the configuration. The Plus features two cables and an extra set of earpads (velours).
From a sound quality perspective they are all identical … with the possible exception of the Alu’s. According to SOME high-end ears, the alu’s sound (even) better than the ones with plastic cups, something to do with the rigidity and material features that the alu cups bring to the table.
I just bought (and pimped) a set of alu’s that I have wanted to buy since they came out a few years ago. I think they are no longer produced as I had to look hard to find a pair. Frankly, I am not hearing the difference. Being a 5 year HD25 user, they sound like I expect them to. Now, pimped with red velours headband inserts and earpads and with a coiled instead of straight cable, they actually look pretty sharp for DJ-ing).
So, pick whichever version tickles your fancy most (visually), as audio it really doesn’t matter (or perhaps very very slightly better in the case of the alu’s).
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