What would be involved in updating Hersey II’s to Hersey IV’s?

It is my understanding that the woofer in the new Heresy model IV will be different than that in the earlier models, because of the now, ported enclosure. I am down to 1 pair of Heresy IIs, as I have had several pairs of the Heresys, and although they are fully modded, by me, I am sorry to say, they are in a 2ndary system, which I never listen to. My main system consists of a pair of modded Lascalas, and there is simply, no comparison. To anyone commenting about putting lipstick on a pig, every Klipsch Heritage speaker benefits from mods and updates, because, as many things in audio, they were made, to a specific price point. In over 50 years at this, I know 1st hand, that " every " audio product can be improved upon, for this reason. I like the Heresy very much, but I do feel the Forte IIIs are a step above the Heresy, for the mid horn, and the additional bass " weight " provided by the larger cabinet and the rear passive unit. The new Cornwall IV, will be the killer in the new line, as far as I am concerned. Hope I did not stir any heads, as it is never my intention...Enjoy ! MrD.

Wolf, glad you found it. All that was needed was to Google : Klipsch Heresy 4......Roy Delgado is truly taking these PWK designs, to the next level, imo.....

" Not my cup of tea ". @jsautter ...Same for me, with your overpriced loudspeakers. To me, they sounded compressed, mellow, seamed to be weak, with the leading edge of instruments, and did not, for me, have that " jump " factor, I look for, which my Lascalas give me, in spades......Granted, they played a nice image and soundstage, and offered good coherence from top to bottom, but imo, sounded like a speaker, and not like live music ( interesting, how we differ as to what live music sounds like, or, should sound like ). You can be a negative voice on any Klipsch thread, as you are not the 1st, nor will be the last, but the truth of the matter is, I am happy with the Klipsch Heritage line ( have been for 50 plus years ). The fact that they can be modified and upgraded easily, and affordably, simply creates a better music producer, for me, and others, and, crazy good at the prices, too..........However, unlike you, I will respect you, for liking what you like....So, why bother coming on here, trolling. BTW, my descriptions of your speakers, fits many others, I have owned, sold, and installed for others. Different flavors, for different tastes. Enjoy ! MrD.

@oddiofyl , fyi, there have been Heresy type speaker designs produced by Klipsch, for the live / pro side of their business, and the cabinets were ported, using a different woofer. These model 4s will be the best of the Heresy line, imo.

Actually, having 50 plus years, owning and fiddling with a particular brand, has certainly had a tremendous effect, and influence, on how I have listened to recorded music, and gave me a " reference ", to every other design and model, by others, and in fact, similar designs. PWK made it possible, for many, to enjoy " his " designs, and Roy Delgado, has been applying some modern techniques, and newer, upgraded parts ( along with the likes of Bob Crites, Al Klappenberger, and Greg Roberts of Volti Audio ). So, those that received a very late intro to the genius of " the man ", I say wonderful....it is about time. Enjoy ! MrD.