Just received them a few days back. Most of these impressions are in comparison with Sennheiser HD-580's (with HD-600 balanced drivers).. First of all, I am very happy with the Grado's. The SR-325 sound great, a little brighter than the Sennheisers. Not laid back like to Sennheisers. The...

Got a pair of new Grado SR-325's on ebay for $212, which I have not received yet. I have a pair of Senn HD580's currently (replaced the drivers with HD600 balanced drivers).. I like the Senn's a lot they are extremely comfortable for me, and although I dont have any problems with the...

What is the difference between Sennheiser's HD580 and HD600 headphones?? Is there any difference in the speaker element itself?? Thanks