I'm not surprised the AD900 @200 was a scam, they are normally that price used (or the A900). Bummer on the price, but good for figuring it out.
I'm listening to the bass-iest thing I have: Mastodon's album "Crack the Skye" at just above my "normal listening level." (Track 4 'the Czar" at the moment(if you've read my other posts: this CD was a gift, and not from my usual source, archive.org)).
I would say I can feel the bass. My EQ is flat, and there's not much to be felt, but the drum bit at 1:48 and 2:03 can be felt just a little. I can certainly seem to detect a slight bit of thumpy-movement at this part. I can't really feel the (much quieter) bass guitar though. I can certainly hear it.
Of course this may merely be my brain fooling me. If so, it's a good fooling. Let me pause a bit and relish the feeling. mmm.
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Lovely. Back on topic, I'd wholeheartedly agree with (just about) everyone else on the AD900-bass topic. The bass is there. You can hear it. I don't think it's too diminished or anemic. It's really great, actually. I'd say it's not as prevalent as compared (or contrasted) to when I put my earbuds(stock cowon) in and press on them. I don't get thumpy bass with the earbuds, but I can detect the bassy-instruments a lot better. I don't like it at all.
By the way, on the AD900, It's much harder to find in the USA. I think Audio Technica sells only some of their models is certain countries (apparantly the place form which I got it has a deal with AT to sell it in the US, I hear they're more common in other countries). So it's no big surprise you can't find the AD700 in (Moscow was it?). I'd check for good shipping/customs deals. I'd be happy to buy one and ship it to you, but I can't imagine it being a good deal.
So if you're into bass you're probably better off with another headphone.
(ooh the very start of track 5: "ghost of karelia" can be felt.)