Pros: Big, lush, detailed, wide diffuse sound stage
Made between 1987 and 1995, these headphones are big. Big to wear with a big sound. Overall they are warm, lush, but still keep the details. That detail means so far I have found them a bit source dependent where poor recordings sound poor. If anything treble is the week partner, but I would guess they have a pretty even frequency response.
Stereo effects can sound amazing and there is an all around the ear sense of space. The way the four drivers interact, it is seemless and totally together.