I had been a bit down on Sennheiser's and was looking at selling my HD595s, but feeling the need for a change I plugged them into my bedside system rather than my office system and began to really enjoy the relaxed open nature of them. Maybe Sennheiser deserved another chance I thought.
At a later date I wandered around the headphone section with my iPod trying out various cans. Tried the HD650s, but found them too dark and laid back. Wondered what all the fuss was about, but was prepared to consider that the iPod classic wouldn't drive them properly. Went back again and tried them with a Pioneer U-05, and was mightily impressed. All the things I was enjoying about my 595s, but more. More space. More detail. More natural. So when a 2nd hand pair popped up at a good price I nabbed them. Due to arrive tomorrow. I think I'll enjoy having them in my line up. My biggest worry is how diry the pads might be because they are 2nd hand
Anyway, I will try to provide impressions once I've had them for a while.