The K501's are a good suggestion when underamped, but they're no longer being made, right? What about the K601's?
I didn't know the W5000 was bass-light, I may have to try a pair, now.
Thanks for the suggestions, feel free to keep them coming. How about something in the lower end of the Audio-Technica closed line? Maybe I should get a pair of the A500's, after all, since I was talking about getting a pair in that other thread.
Worst case, I may have to give her an EQ to get rid of the bass frequencies (they seem to trigger some kind of distortion in her ears). Don't get me started -- that was just before they got discontinued, so I was sure I could get another pair for US$3xx, which is what I paid for the ones I gave her, formerly known as mine. They're pretty much the only ones she could hear anything on. In hindsight, I had no idea how generous I was being. I'm not saying I wouldn't have done it anyway, but if I knew then how long I'd be without a pair, I would have at least slept on it a couple more nights.