Can you expand on this a little? It's just that ... this is exactly the issue I had with the 4070. There was just something "off" about the bass. (I don't remember whether or not I had the fit problems, but I do remember them being almost unbearably heavy.)
I actually don't mind "technically pretty good", because the last time that happened, I ended up settling on that one as a favorite source. I (at that time) decided I liked a source that did not impose any of its own "excitement" to the music, and rather just got out of the way and let me hear excitement in music in which there was excitement, and not hear it where there wasn't. Euphony is nice once in a while, but it's addictive, and I can live without it. So you may want to listen to them from that perspective before you give up on them.
Also, what amp?