I have been contemplating where the next big advancement will be in terms of low frequency production. We have woofers with over 1.5" one-way linear excursion, with extremely low distortion. With the general design of the dynamic loudspeaker at over 80 yrs. old, what will be the next big innovation in terms of bass reproduction? The biggest quandary I see, is that since bass is so reliant on the movement of air, we will not see much of a change... unfortunately.
Any thoughts here?