Let me guess, you're one of the audiophiles who think tone-controls or EQ ruin the pathway?
What can I say? You got me figured out. It's true, I don't use tone controls, or even a pre-amp per se. Those are all so passé, don't you think?
My system is rather crude and basic: just a ladder stepped volume control, DAC, and a couple of op-amps. (Cheap and efficient. Eh?) This receives a 24/96 bitstream from a digital mixing console which has upconverted the 16 bit audio files for processing by an array of studio plugins. At this point I can modify the sound in any way I want through multi-band parametric EQs, graphic EQs, noise gates, limiters, compressors, and effects. After which it's passed off to a 24/96 digital crossover that can correct for time and the special EQ needs of Constant Directivity horns, etc.
If you feel the need to change speakers for a different sound, then why not simply use tone controls or an EQ and understand that you can regain your "straight-line" front-end characteristics at the touch of a button?
Unfortunately, that proverbial "button" would have to be truly magical because it would defy the laws of physics. Engineers have known for a very long time that compression drivers and horns have different characteristics from domes. You can't just use a set of tone controls, or an EQ, to make them perform in the same way. If this were true, then you could take any pair of speakers and make them sound identical to any other pair. This explains why JBL (or any other manufacturer) sees the need to make, not only different types of drivers, but enclosures as well. There is no magical all-in-one speaker system that can do all things.
Getting back to my original point -people who enjoy listening to life-like music reproduction (audiophiles?) would benefit from speaker systems that make the majority of the music they love sound as good as possible, within the limits of their listening environment. It is my contention that accuracy (to the average person) is not what they want out of a sound reproduction system. What they really want is for their music to sound good (life-like?) in the subjective way in which they perceive it. For instance, many people that use Audio Karma prefer tubes (valves), which are not as accurate as solid state (in purely scientific and engineering terms) because they find the subtle distortion of envelope delay to be pleasant. It would seem to me that they are more interested in the subjective overall tonality of their system than its accuracy (in an absolute sense). While I don't use tube equipment, I do agree with what they are trying to accomplish.
(Since I brought up 24/96 I would also like to offer a word of caution regarding it. See
http://people.xiph.org/~xiphmont/demo/neil-young.html.)