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Everything posted by pzannucci

  1. If that was the question, then the answer may be interesting.
  2. I would think he likes the changes since he designed it :-)
  3. Slight change in sound. I had to remove mine in an old set of k-horns because I could actually hear it rattle on certain notes.
  4. It appears you want fairly extended bass. The horn itself will take up a lot of space let alone adding a TL with it. A better approach would be something like a La Scala horn but enlarged enough to port appropriately to provide some bass extension. Remember those ports will usually not keep up with the horn efficiency so you need to also figure how to manage that. The size, length, compression at throat, back side volume, expansion rate will all contribute to the efficiency and frequency response allowed by the horn. Fun project and will take a lot of trial an error if you don't just build a design with has already had the problems sorted out. Enjoy though!!
  5. You just have to justify it if something happens and pay for it if nothing does! I have to do the same.
  6. For music without sub, you would need to turn off the crossover unless it is set at a very very low frequency. Since you will be doing that you will likely have to have a second set of EQ settings for music since the sub will modify the entire presentation and likely change the EQ up through mid-bass, making it incompatible with running the speakers separately. I myself would look at the best placement for the speakers and see if they could be run direct for music.
  7. Actually it is the box not the diffraction. Box needs to be massively braced due to the large panel sizes. In actuality, width of the board the woofer is on needs to be as big as possible to reduce baffle step issues. One thing that is somewhat compensated for by putting the woofer closer to the floor.
  8. Look at the Cornwall specs and decide if that goes into sub territory enough for you along with the box size.
  9. Thank you for the brochure though I don't see anything about a K510 in that document. Please point out the page.
  10. If we got answers, there wouldn't be a thread. What fun is that. What was that commercial with "Anticipation"
  11. Agreed, my assumption (maybe wrong) is that the structural issues of the CW IV should have been mitigated. A large paneled box with limited bracing will sound just like that, a box.
  12. Yes, two different problems, turbulence / pipe noise artifacts and box noise escaping through the port. Something similar to midrange leakage. Though based on the tuning, there can also be a resonant boominess from the box that you can hear in the CW. The port type, length, and size can help resolve this along with quality bracing to insure it isn't from panels moving. All this stuff does account for a quality speaker.
  13. Not referring to something similar to a port tuning resonance but the box sound that escapes the port due to the old style ports. Not box tuning such as helmholtz resonator.
  14. I think the ports will make a profound difference. Too much box resonance/sound in earlier CWs. One of my major dislikes. I will need to seek out an audition because it seems the problem areas have been addressed. Just wonder if the poly mid will sound as good as phenolic. Probably better damping.
  15. Do you have the original crossovers and K-77 tweeters (alnico likely)?
  16. Thank you for the plots showing it. This is precisely why if you want a wider sweet spot, you don't buy speakers are horizontally arrayed. Shifts at crossover causing cancellation and other issues with the frequency response. Much the same thing as an MTM when you are out of the flashlight positioning of the center driver, everything else collapses.
  17. Yes woofer unloading below port cut off and flapping around won't sound loud but will destroy itself. Not too hard to do in a small bookshelf. High pass / subsonic filter (with a higher than subsonic cutoff) should be employed if you try to do this.
  18. Before you do anything, you need to listen to the RP-6000F. Klipsch speakers are typically unforgiving and not nearly as laid back as other brands so good bass will be relative. BTW, you are talking about good bass but you reference using a sub. Would you be using the RP speakers full range with the sub or using the crossover in the receiver? If not using at least with a crossover of around 40-50hz, you will not know what bass the RP-6000F will be capable of. Also using built in AccuEQ will dramatically change the character of the speakers vs listening in pure / direct mode for say music listening in stereo. You need to listen for yourself as you will know best.
  19. Very good little speakers. Should be much better than the older Polks (depending on your hot bottons) though a different sound then the old Klipsch Heritage stuff.
  20. I would assume the new Cornwall !V would have more open and natural sounding mids and the port mods should be just what is needed to get rid of the sound of the resonance of the box then lended a tubby slow sound to the bass. These two changes should make them a much better speaker.
  21. Don't want panels of the same size to resonate at close to the same frequency.
  22. If you have a problem in a smaller room, plug the ports :-). You never know if you will have a larger room someday.
  23. Some magnets are in Cans and some are just glued on to the back of the magnet.
  24. Off subject but can't help noticing the braces on the La Scala. Apparently someone either recognized the sidewall problem and tried to fix it or tried to prove it didn't exist. Surprised it didn't make it's way into production.
  25. If no plans for a sub, then the 260F is the way to go. This is unless you are putting the speakers on some type of table or shelf. If not then the 260F would take up about the same floor space as the RP-160M on a stand but provide much better bass if you require it.
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