I'm not inclined to doubt the accuracy of the information it offers. There will be certain variations with a real box. In my view it's up to you to manage the impact of this.
BTW, good choice doing an MTM D'Appolito style.
BTW, good choice doing an MTM D'Appolito style.
John Krutke had a fine collection of MTM, MMTMM and MTMMM designs based on 'his' ZA14-driver. His site is still up. And the elegance and simplicity of his crossovers is (still) worth studying. Zaph|Audio - ZA5 Speaker Designs with ZA14W08 woofer and Vifa DQ25SC16-04 tweeter