[Dampening Klipsch horns for better sound - worth a try?]

On 12/4/2023 at 2:21 AM, Kinst VonSterga said:

Applied Dynamat Extreme to the stamped-steel woofer cage, mid-horn and tweeter.  I can honestly say that the two plastic horns + large metal basket no longer "ring" when tapped on, but then again, I don't make it a habit of tapping on either when playing music via. these beautiful Heresy IVs. 

I may treat the right speaker or just remove what was done to the left, as the Dynamat cleanly comes off the metal and plastic with no issue, though its not going anywhere if left undisturbed. 

Either way, I measured the treated Left speaker (red) to its au naturel Right (green) using REW, so folks can make up their own mind, rather than hear any subjective 👍or 👎 from me.  

Printscreens are posted here.  REW MDAT files will be posted next (due to their file size).

Cheers,

Thanks! I rope caulked the horns of my Heresy IV in an effort to reduce a bit of resonance or sibilance and subjectively it seems to have worked. After caulking I played many of the songs that had some kind of sibilance (James Taylor, Norah Jones, Ella Fitzgerald, etc.) and it no longer bothers me. I'm glad you were able to measure a difference but looking at your charts makes me wonder if the green and red are mixed up? I hear less treble energy after caulking the horns. Regardless, I prefer the sound and seeing a difference in the measurements makes sense. Many thanks for sharing.

[Heresy 4's and midrange bump]

Thanks 001. 

[Heresy 4's and midrange bump]

On 9/26/2021 at 4:24 PM, OO1 said:

... Poly in my post referred  to  polyester Film/mylar /plastic as opposed to  Poly polyimide /polymer /nylon as used in the K771-K702  , in any case , the K771 and K702 sound really good -

Can the titanium in the Heresy IV tweeters be replaced with a poly diaphragm? If so, which one? TIA.

[Anyone here have a Dennis Had amp?]

I have this beautiful Dennis Had Inspire Sweet 807 amp. Great match with Heresy IV (all Heritage should be great). Back in the 1990s the Cary Audio gear I purchased stopped me from upgrading. I rotated thru lots of gear back then. I still have the Cary Audio amp/preamp and use it in the basement system with DIY speakers. Now the Inspire amp has stopped me from upgrading again (had three amps prior). Inspire upstairs, Cary Audio downstairs. I’ve compared the amps and find they sound similar but on direct comparison the Cary sounds a bit fuzzier. The Inspire is crystal clear and focused.