Summary: The HD25 series need no introduction, I think the Aluminiums are the best in the lineup, they sound very balanced with tight punchy bass that extends lower than the original HD25, it is a warm, clean sounding headphone.
Summary: I bought the HD25 aluminium one week ago and so far this headphone has done nothing but impress me. It hits all the check-boxes of what a headphone should do good.
These are a hyperdetailed set of cans, while having an overall warm signature due to the toned down 4-6khz region.
Pros: Excellent sound: Rich and warm, punchy bass, BASS, BASS, excellent extension, speed, seperation and good imaging. New king of On-ears, ALUMINIUM!
Cons: They cost money, comfort is normal for on ears, Dominant 100-300hz bass region but is EQ-able, not as spacious or airy as over-ear