I am very familiar with this design philosophy and completely disagree with it. The bass "punch" is achieved by adding coloration around 100Hz. On a fairly quick listen this seems to be pleasing but it is in fact unrealistic and becomes irritating over time. Normally designers following this line will also increase the high frequency to balance out the unrealistic bass boost. This destroys the mid range and imaging of the speaker. Though this design technique will appear to be a benefit at first, which can be very helpful in relatively short in store demonstrations, it detracts from the overall performance that could have been achieved by the speaker. The proper way to add this punch, if your particular environment requires it, is to add a sub-woofer and run it with the crossover frequency up fairly high.
