Pros Soft, spacious, clear, soundstage
Cons Heavier than usual headphones.
Summary Ok.. I own the 325, and my friend owns the 325i. I compared the two listening to iPod 30gb Video player, Culture Club, 192Kb sampling, song is "Time".
The 325i sounds softer, more like an analog sound, rather than a ripped digital MP3. Personally, I like the softer analog sound. If you look closely inside the woofer, the 325i has a greenish-tint; the 325 has a clear non-colored tint.
The gold 325i sure looks prettier!
I'd recommend to rotate the foam liners 1/4 turn each time you put them on. This will create even-wear-and-tear, and also keep your ear lobes from hurting too much.
Pros In what happens to be the most beneficial upgrade to music listening you can make. These headphones will transcend you into the studio with your favopurite musician. The sound and detail is extrodinary.The look and feel is nice and compact.
Cons A little unpleasant on the head after 3 hours of listening. But who has that much time to sit tethered to a cord.
Summary If you are back into VINYL and use these with a very good Turntable, you will now see and feel music like you never thought possible. CD and DIGITAL music although inferior to actual VINYL, actually is pleasant on these cans. But to truly appreciate what these cans can do, you have to fire up your old VINYL collection.
Pros great natural sound that feels like your are on stage
Cons cost, and could be a bit more comfortable
Summary The SR325i had the most natural sound of any of the cans I tried. They were great when listening to jazz, rock, blues, or classical. I look for every excuse to listen to music with these every chance I get. While they sound best with a home system they are easily driven with an portable players like an iPod. The sound even from iPods with files using high resolution sampling is great and noticeably better than with the lower end cans. All the Grado cans were good, but each level has a slight improvement up to the 325i. The base was much richer with the sr325i than the sr225. I did not appreciate significant improvement between the sr 325i and next level rs2 which I found more muted.
I enjoyed the natural "on stage" Grado sound more than the Sennheisser or AKG.
Compared with Grado sr 80, 125, 225, rs2. Sennheiser 555, 595,650, AKG k 601, k701and Shure e500. The Sennheissers and AKG's were a little more comfortable. The Shure E500 are more portable, comfortable, and offer sound isolation, but still lack the natural sound I hear with the Grado or Sennheisser 595. The Sennheiser 595 were the closet to the Grado. However, I enjoyed the sound from the Grados much more. The Grad 325i are easily comfortable enough to listen to for over 2 hours of music.