Room EQ to eliminate the BBC dip?

I read an older but very perceptive post on the thread about smooth speakers:

[09-19-07: Audiokinesis
A speaker can be made to sound smooth by designing in a frequency response dip in the lower treble region (somewhere around 2 kHz to 5 kHz). The Silverlines mentioned by Zapper and Bondmanp often have a pronounced dip in this region and I think that Shahinans do as well, and a lesser dip is present in many British speakers (and I would guess something like that is present in most of the other speakers mentioned in this thread that I'm not familiar with). Maggies have a broader, gentler lower treble dip that smooths the presentation.

As Mrtennis points out, there are tradeoffs involved. To my ears, a speaker with reduced energy in the lower treble region is lacking in upper harmonic energy on many acoustic instruments, and so it doesn't have as much "life". I find myself wanting to turn the volume level up louder to hear the harmonic richness that I expect.

I used to own Quad 63's, and would not describe them as an especially "smooth" and forgiving speaker - they could sound somewhat aggressive with some program material. Quad 57's are smoother, and I haven't heard the latest Quads.

Speakers that are free from peaks in the 2-5 kHz region (whether on-axis or off-axis) are likely to sound fairly smooth without trading off too much upper harmonic energy. But if you want a speaker that sounds smooth even with a harsh recording, you'll need a speaker whose response dips signiifcantly in the lower treble region.

Duke
Audiokinesis]

I own B&W 802D's, which have a dip in the 2-5 kHz range. I use an Anthem D2V with ARC, and am currently correcting room response up to 5K. So I am eliminating the dip with room correction software. Kind of wonder what people think about this issue. I understand it's a personal preference, but do you think I am changing the "personality" of the speaker for the better or worse?

This also raises for me a second question, which is what speakers would be best to have when used in a system with room EQ. Obviously if you use a sub and room EQ, the bass extension/accuracy of the speaker is less important. I guess one would want even on-axis and off-axis frequency response above the level at which you stop applying the correction. Which high end speakers are the best for this? I am often amazed that some very expensive speakers don't seem to do this well, when you look at their in-room response.