Frequency response + or - 1 dB ??

My question is simple.
Why is it obviously technically difficult for speaker designers to provide precisely level frequency response. @kenjit. I accept some listeners want to adjust the sound for different recordings. Old fashioned tone controls and modern equalizers provide that.

Duke answered your question above.

How about because human ears are nowhere near as sensitive to amplitude as they are tone.

This is true and I find it amusing that in amplifiers the constant voltage characteristic is considered so important, when in the end, the ear actually places a greater value on the tonality caused by distortion than it does on tonality created by actual FR errors. Clearly a constant voltage characteristic (double power as impedance is halved) isn't that important in the overall scheme of things- but getting the distortion signature right is. That is why the tubes/transistors debate rages on ad nauseam. 

Sorry to have to disagree Atmasphere. I was hoping it might be folks with your technical acumen that might provide real insight | 

Sorry to have to disagree Atmasphere. I was hoping it might be folks with your technical acumen that might provide real insight |

Well as you saw, Duke did it- so it can be done and isn't that crazy difficult. Just turns out that isn't how you want to do it. What sort of insight beyond that are you looking for?

The problem as Duke pointed out is that speakers are used in rooms- and rooms have an acoustic signature as well as reflections- the latter playing an enormous role in how we perceive sound.

If one is being pragmatic, its probably better to work *with* human hearing perceptual rules rather than against them.