I owned a pair of grado sr80's previously to buying these. I loved my sr80's, but I was curious to try the higher end models. I was about to buy the sr225's, but decided to go all out and jump to the 325s. It was well worth it. After their burn in period, there's a huge difference between these and the sr80's. The vocals are more distinct, everything is more detailed, and everything seems to be more harmonious. The bass is still there, but it's blended it much better. I just own these and a pair of triple fi 10 iem for portable use. I am not an expert when it comes with audiophile headphones and will not try to use an extensive vocabulary to describe the most simple qualities of sound, but I recognize when something sounds amazing and these headphones do.