The HF-2s have a fuller sound than the SR80s. More like being in a bath than a shower, if you can stand a shaky analogy.
As for the bass issue, this is going to take a critical relisten, probably tonight. I'll let you know.
And thanks for the thumbs up, this is my first real(ish) equipment review.
Thumbs up from me as well! I enjoyed reading your thoughts - thanks for taking the time. The casual approach is certainly a valid one.