Love it! :-)
You are 100% correct.
By the way, I appreciate clearing things up for me about the Db. I know about it but didn't check on it for the HP100. I mainly focused on the ohms. Maybe that is the problem with the HP100. They simply were blend to me, but so is my friend's Sennheiser HD600 (300ohms) via iPhone without an amp. I get it.
I just felt that the guy who suggested specifically KEF501 or whatever that model is, was simply using me to see how good/bad those headphones are because I can't believe anyone would put them on the same level as the other 3 I used.
Anyway, thanks for reminding me to keep the sensitivity (Db) in mind, other than the ohms rating.
Heh. Well if you didn't like the HD600 then I don't know what to suggest to you, as it's one of the best headphones in my opinion. Maybe you just want more bass, but you also said you wanted tight bass. Anyways, if you want something more aggressive, try P7, Momentum, or M-100.