I know sound is subjective. I am contemplating buying one or the other. Perhaps some input from those that have experience with both could help. My interest stems from being fairly impressed with a set of SR80e's. I have heard some talk of the 225 but not much of the 325 and certainly not any...

So I am getting a headphone setup for my Dad. He will be listening in his living room with Mom next to him while she does cross stitching or some other activity. She absolutely does NOT want to hear what he is listening to. Thus the title. I am looking for a recommendation on a closed back...