Grado SR325i vs. SR225i

Grados aren't very neutral to begin with so I would respectively question how well Grados are use for mixing. I’m don’t mix stuff so I guess that’s a huge fallacy and maybe I’m wrong.

On subject of which is better, I’ve compared the sr325i and the sr225 and I chose sr225 for better comfort and less harsh signature. However, I really don't think you will get a conclusive answer on headfi, the only way is try them both.

The SR-225(i) has less treble then the SR-325i, but the SR-225(i) treble sounds more natural and extended. Most people say that the SR-325i(s) highs are piercing/fatiguing, but I hardly think they are. Also the SR-325i(s) have more bass and a somewhat sheen to their sound. They are also cumbersome and easily slip off your head, so no head banging please! Another thing to note is that the SR-325i(s) overall sound is a little different than the normal Grado sound.

If you get the SR-325i(s) and feel they are fatiguing, just listen at lower volumes a little bit everyday till your ears become accustomed to their sound. Then the fatiguing thing should be solved and if not, I'd just return them if possible.

EDIT: Also if you need more bass, just put some electrical tape around the 'bowls" and the bass is nearly doubled. This happens because the bowls are open on the sides and when putting tape around them it prevents sound from flowing out. Essentially it focuses the sound into the ear canal and slightly raises the SPL. This is good if you are a bass-head like me .

Let me know if you have anymore questions. I'm here and I'm willing to help.

I'd say taping makes them sound smaller but frequencies sound about the same. The SR-325i is only like a 15% upgrade and it does have a little bit more detail.

For a frequency comparison visit
Headroom

I have owned both headphones and kept the 325i. It better suited the kinds of music I wanted it to compliment. Evident from the headroom graph, both headphones have a somewhat weak bass frequency response, but if that doesn't ruin your mixing then I suggest you just try both on and make up your mind. It's not an exact science and your ears are worth more than spectrometers or oscilloscopes.

Another choice for very neutral headphones could be AKG K701 with a transparent amp.

Whoa! John Grado headphones are far from neutral! Their sound rocks, but I cant imagine someone doing any mixing with them.

nearly any other brand.
grados have a reputation for being very bright.
(not good or bad, all preference.)

Old Joseph Grado headphones were very neutral according to impressions and comparisons, and highly sought after HP1000 model is quite famous here. Now his nephew (or atleast I think it was nephew) John leads the business, and he has different ideology for good sound. He builds sort of hifi headphones, not monitoring headphones, with tuned sound to make music more pleasing (much like hifi speakers vs. studio monitor speakers, you get the idea). John Grado headphones are known for their rather warm midrange, peaky upper midrange and highs and boosted, punchy midbass. This is their "housesound", much like higher end Sennheisers have their own housesound, smooth and laidback. (pretty much opposite of Grados in-your-face and sharp and bright sound. Senn vs. Grado wars between fans are quite common ) Grados are, IMHO, especially good sounding with music relying on distorted guitars like rock and metal as their sound really make electronic guitars sing.

Im not sure, but I think Grado headphones sound is often said to be somewhat similar to Klipsch hifi speakers? Cant confirm this myself as I have never heard Klipsch products.

Dunno man, but boy do Grado's sound awesome!! Like everyone else is saying, Grado headphones are very colored (not in a bad way though) and probably won't be good for mixing. HD600 would be better for that since it's more neutral.

Yeah, the HD 600 would be a better match if you plan on doing any mixing/mastering.