El: I think that you missed the point. The ability to deliver the amount of "clean" power as needed in a timely fashion on a dynamic basis at any given frequency or impedance is what i'm talking about. The closer that one comes to achieving that goal, the more refined, musical and natural their system will perform. The lack of smearing, strain and ringing combined with the improvements in liquidity and harmonic structure that one experiences is an eye & ear opening experience. The music is no longer coming from a stereo system, sounding canned, compressed and "box-like", but actually spreads out and presents a very dynamic yet subtle panoramic view into the recording.
Much of this comes from the improved response times and control that a non-current limited wide bandwidth high dynamic headroom system provides. If you actually measured the peak power required to reproduce specific types of dynamic transients, you might be pretty shocked. When you factor in that the impedance of the speaker varies over the frequency range and that more / less power & ability to control and respond to the signal and load may be required simultaneously, one begins to understand that you can never have "too much", so long as it can respond on a very timely and dynamic basis.
Obviously, one can avoid some of these pitfalls by picking speakers that present a gentle impedance curve with lower levels of reactance, but such designs typically tend to sound somewhat "stifled" to me. That's because the manufacturer has typically added quite a few parts to the crossover to tame specific resonances and problems. This ends up sucking the life and harmonic structure out of the music and reducing the quality of the amplifier / driver interphase.
I guess that it boils down to the fact that we are damned if we do, damned if we don't. There are obviously compromises to be made in all but the very most expensive, well-designed systems out there. I always strive to try and reduce the potential for technically related problems, but when it comes down to it, the bottom line is that it has to sound good. Luckily, resolving most of the technical issues ends up sounding markedly better, so the two goals seem to work hand in hand. Sean
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