Uh...also exacerbated by the big suckout in the upper mids/low treble when you stand up into the "crossover null" cancellation of the mid and tweeter, allowing your ear/brain to PERCEIVE more bass. Almost all the bass you hear is reflected energy, as the wavelengths are long and pile up weirdly, btw. You'll have to play with listening seat position as well as speaker position to arrive at a smooth response that provides reasonable bass linearity and mid/treble response that's not too affected by sidewall reflections, for example. Keep at it...the rewards are abundant!