I am listening to alot of different music, but mostly Heavy-metal, so the bass need to be Thight but with impact and noot boomy.
Have you considered professional active speakers? ATC Active 50's would fit your requirement/room, as would many of the other active pro models available from other companies; low distortion, high SPL's, and plenty of dynamics are what characterize pro studio main monitors compared to consumer speakers (these designs will play at live music levels without sounding dull or harsh). Bass will actually sound different from track to track rather than boring and overwhelming all the time (as seems popular these days and sells best in five minute auditions)
AC/DC, Chapel Studios (Motorhead, Saxon etc.) use ATC, as does Swedish Radio but there are plenty of active pro speakers to choose from (PMC, Dynaudio etc.) and most are a step up from the consumer designs, although they won't look impressive, as professionals are not intersted in a speaker as a piece of furniture or for making a visual statement.