I spent some time with the HEDD Type-20 Mk1 3-way monitors; the bass image was remarkable in it's balance within the soundstage. Other monitors I've tried seem to excite the room resonances more (distracting from the soundstage) whereas the Type-20 didn't waste the bass...and that even without the Linearizer engaged.
Is there a specific design philosophy related to the well-imaged bass?