Forte I mid-tweeter-Xover replacement with Heresy I components

[klipschfan]

I have recently replaced the xover caps with oil filled MCaps and also rewired with 12awg copper/silver wire in my original series I Forte's.

Great improvement...fabulous bass!....but....I miss that wonderful upper range liveliness of my series I Heresy's.

I'm considering reconfiguring my Forte's with orginal Heresy I tweeter, mid, and crossovers.

1-Has anyone tried this/what were the results?

2-What alterations/optimizations would I need to make to Heresy crossover for this proposed Forte application?

Thanks,

klipschfan

[Frzninvt]

You would be going in the wrong direction if you did so.

The tweeter and midrange in the Forte' are superior, extend farther, and have a cleaner response than the drivers in the Heresy. The MF/HF extends solidly to 20Khz in those speakers something the Heresy did not do.

I see you used oil filled caps which is not the direction you should have gone in if you wanted extended highs. Oil filled caps tend to roll off the highs making them smoother and more subtle.

If you want higher highs, replace the diaphrams in the tweeters to titanium. Bob Crites has them available if I am not mistaken. Take the oil filled caps out of the tweeter circuit and replace them with Kimbers, AuriCap Theta's, SoniCaps, or Hovlands instead to restore the brightness.

[klipschfan]

Thanks....I'll try those Titanium diaphragms.

[]

[klipschfan]

Several years ago I decided to see if I could successfully blend the successful sound of the Heresy with the bass extension of the Forte'. The result has been most pleasing.

Step one was to replace the Forte's original midrange horns & drivers, crossovers, and tweeters with original heresy (1980) components, and replacing the original grill cloth with a much lighter weave I purchased from Madisound.

Step 2 led to also replacing the woofers with the new Klipsch woofer now used in the Heresy III's (K28EP)....4ohm 99db....precise, fast -- flat to 40hz in the Forte I cabinet, -5db at 30 hz (wish I could measure 35 hz).

Step 3 led to replacing the K77's (EV T35's) with EV T 350's and installing new binding posts on the bases, thus by-passing the remaining mounting board from the original Forte' crossovers. As a final step I mounted each speaker on 2" spikes...from Madisound. This last step was the most noticeable on the total bottom end, finally giving the mating of the woofers, passive radiators, and cabinets the opportunity to be as precise as those wonderful K55's and T350's.

Bob Crites helped me procure some dual phase plug K55mid drivers from '80 along with the Heresy mid horns. . Michael Swallick handcrafted some absolutely stunning 8" walnut custom risers. I located both of these gentlemen and their excellent products via Ebay. If anyone wants to try this you're going to need to build mounting templates by sketching the outer edges of your current Forte mids and tweeters on hardboard, then cutting them out with a scroll saw. The mid horns must be surface mounted from the front...otherwise the K55's are just too deep to rear mount to baffle board...and the job would be too difficult anyway. The installation of the T350's was a bear. I'm now considering replacing my motorboards with 3/4 walnut veenered plywood.

PWK ..... cheers and thanks for some of best fun per $ I can enjoy.