I've owned a set of Grado SR80's for a few years and love them. I REALLY want to see what the 225 or 325i sound like. Are they are considerably better? 90% of the time I listen to them on the computer with Soundblaster Audigy sound card. Also, would they sound much better using a headphone amp? I got alot of grief from wife and daughter when trying to justify price of upgraded Grado and amp? Thanks.
