Jump to content

Dave A

Regulars
  • Posts

    4761
  • Joined

  • Last visited

  • Days Won

    1

Posts posted by Dave A

  1. 1 hour ago, ODS123 said:

    I don't know how I came to understand it was some sort of an unofficial unveiling for a small audience - I'd have to go back through old threads to figure it out.  Maybe we're not talking about the same event.

     

    But it doesn't really matter.  To me, the fact remains that audible differences b/w generations of speakers - in my personal experience - have always ended up being much smaller than proclaimed by the mfg.  In in the present case, they were designed by the same person.

    All I can say is solipsism is about as far from any scientific viewpoint or rational seeking of information as one can get. You did not know because you did not care to look into what people who know nothing, that would be anyone but you just so we are clear here about my comment, were doing or saying or have done or said. It is an amazing cancellation of external information on thought processes.

  2. 19 minutes ago, ODS123 said:

     

    Worthless?  ..Well, almost.

     

    Look, if I was invited to the Klipsch mothership by it's chief engineer for the unveiling of their newest CW, I would have excitedly accepted the offer - like anyone here would.   I would have enjoyed the presentation, the music, and the camaraderie.  But that hardly passes as an environment where people are able to make an unbiased assessment of what they are hearing.   To say "I don't hear a difference" or "I hear a difference, but I don't think it's necessarily better" in that context/environment would be like showing up to the hospital and refusing to say your friends new baby is beautiful. 

     

     

    OK ODS you don't even have an idea what the gathering was for. It was about crossover design and Roy used 3rd gen and 4th gen speakers to demonstrate Linkwitz Riley and Butterworth and DB slopes effect on sound. It was not about selling us on new stuff as you so arrogantly assume. Do you realize how silly you sound?

    • Like 3
  3. 17 hours ago, ODS123 said:

    Statistically, that means nothing.  ..Did everyone know what they were hearing?  Then of course they're going to think the newer model with the visibly larger mid-horn is going to sound better.  ...Especially if it's preceded by a product presentation explaining how it was improved and what to listen for.

    That right there is downright funny. Casting shade on a group of people whose capabilities, judgement and experience you know nothing of but then can be assumed by you to be far less than yours. I hear it can be quite windy when you live on the mountain top by yourself.

  4. 2 hours ago, methylenedioxymethamphetam said:

    Danley Jericho.  I was trying to suggest something similar in price and size to consider in the realm of what OP inquired about.   MCM 1900 fantastic, sure.  Who can fit that in the average listening room? 

    anyone who tries. Danley = $$$$$$

    • Like 1
  5. 5 hours ago, ArmandCroft said:

    After priming one speaker, I could still see faint 80 grit marks so on the unprimed one I decided to skin the whole box with wood putty before priming as it's easier to sand than automotive primer (cheaper too). I'll get the primed one right with some spot putty before painting it. Got my Crites Titanium diaphragms for the K-79-K tweeters but held off replacing them because I'm not sure if I should replace the ferrofluid. Also the person I bought the speakers from sent me the Klipsch woofer that was in the speaker before she replaced it with the JBL, but it is a K-43 not a K-48-K as it should be, so now I have to figure out where to get a K-48-K or maybe I'll just have to replace both with Kappas or another suitable woofer.

    Always nice to see a working shop and real hands on speaker projects. Far better then mere words and never any examples of what is being talked about.

    • Like 2
  6. 11 hours ago, geoff. said:

    My polyswitches were visibly smoked, in need of replacing. Some said for home use it would be ok to just remove the circuit, others said to just buy the 70 cent part and replace it.

    I have visions of the drunks hollering to the drunken DJ "turn it up"  and he does until they fry. Pro gear really gets hammered at times by clueless people.

  7. 14 minutes ago, RandyH said:

    @ArmandCroft  I would   update the  3,0A  XO similarly to the 3,0B  , to have a matching set of crossovers   , the 3.0B being the latest revision of the KP-301 XO ,

     

      I use the KP-3,6A which is used on the KP-301-II and the KP 362-

    https://community.klipsch.com/uploads/monthly_2020_08/image.jpeg.0db961e32a7ceeea1dd8f7b45aebe1d2.jpeg

    Using the crossover for the 301-II would be incorrect here because they use a different mid and tweeter then the 301-I.  OP has correct crossovers and only needs to recap what he has. Assuming that Klipsch made the crossover update to improve them then yes I would build a copy of the 3.0B IF it made a noticeable audible difference. I do not hear a difference on the two in my shop right now with these crossovers. Notice the logo change too. Also see the difference in the grilles with one having expanded metal over to woofer. Both however are correct.DSC_0030.thumb.JPG.669d8f74656312c834d82474ce3bc87c.JPG

    • Like 1
  8. As stated earlier they sound the same to me side by side so yes. They were both designed for 301's. Your real problem is the JBL woofer which will most likely not have the same characteristics as the K-48. I have seen all kinds of bone headed things done with pro gear. Had a set of LSI's once and when I got into them the K-33 woofers were 15", but the "replacements" were marked Made In Taiwan.  K-42's replaced with speakers marked "Javanco" was another one that comes to mind. That was was pretty funny as Javanco was an electronics surplus store in Nashville but they fit the hole and were cheap and were right there.

     

     

     

  9. 1 hour ago, RandyH said:

    the KP 3.0B  is the right crossover for the KP-301     are both your crossovers on a wooden board ?

    Both of the crossovers the OP mentioned are correct for 301's. I have a set with those two in them right now in my shop. Where are you getting your information?

    • Like 1
    • Haha 1
  10. I don't buy kits I buy caps from Parts Express and use either Audyn's or Dayton 1%. I also use the 68uf Audyn's for the woofer and you can see an example of how I attach it. YES I know many of you choose to use that electrolytic cap here but I have seen them fail outright and I also think they do not sound as good + they will not last as long as the poly caps used in the rest of the crossover recap. If the idea of sticking the 68uf cap siliconed and cable tied to the top of the coil bothers you a small piece of wood screwed in next to the crossover board works fine and 16g buss wire and insulated cover works for the extended leads. Good speakers well worth your time.

     

      All the values you need are marked on the existing caps. I stay away from those nylon clips with cable ties now and stick them down with silicone caulk or just reheat that hot melt glue and smush the new caps into that until cool. I had a chance to look at an older board I had recapped with those cable ties and nylon clips a while back and there were dents in the side of the caps from the clips sharp corners. I don't KNOW this hurts the caps but I also know not using clips for that reason can't hurt.

    DSC_0031.JPG

    • Like 1
  11. I just finished working on a pair like this. They sound the same to me and both are correct for the 301. I have no idea why the crossover was changed but Klipsch did this with other pro speakers too. I just recapped them according to the values Klipsch used and they are great speakers. Yeah replace that JBL with the right woofer and you won't be disappointed.

    • Like 1
  12. 1 hour ago, RandyH said:

    the A network  is old school  ,for  older classical Alnico drivers  with tons of  R&D ...........K-77 round magnet .  EV T350   ,  JBL 075  -

     

    Aftermarket  horns  look good , but a  3D printer home made horn  would be just as good  as Boutique tweeter lenses  mated to  50-75$  neo drivers  that are very colored , and whether  they are /injection molded / metal / plastic  .......PWK used to say , does not make a dime worth of difference   .

    OK lets look at that. For a few rare people that might be so. They have to have 3D design software to design the horn and the ability to design it right. The alternative would be a reverse engineered file which then means you have to have a way of collecting a point cloud which could then be brought into your 3D design program if you wish to duplicate a known good design. Or a CMM to accurately measure complex surfaces which you are not going to do with simple basic hand measurements.You see you have to have a program to design a solid shape to deposit or machine from. Then you need to have software to be able to create a printer path for the printer which then also means you have to learn both the design software and the deposition software. Unless you can find someone who will give you those files and teach you how to run the printer. Good quality deposition parts also do not come from those home owner desktop depositors, they come from much more expensive units.  But yes if you have the capability an exact duplicate shape should behave just like what you copy.

    • Like 3
    • Thanks 1
  13. 1 hour ago, RandyH said:

     

    no sweat  , I have 3  woofers that I alternate in my Heresy Speakers   with the E network .......k22EP square magnet , K28-K  4 Ohms Woofer ,   and the K-42 Cast Woofer 

    So what crossover changes do you make so the not stock Heresy 1 woofers sound right?

  14. Poly is better then Ti in 1" diaphragms in my experience and by my personal preference. There is only one advantage to Ti 1" diaphragm's in my opinion and it only applies to prolonged professional very high output scenarios. If poly gets to hot it looses shape and is no good whereas Ti does not suffer from that. I have never seen or heard of a poly diaphragm doing that in my personal experience (hundreds of drivers) and this is just what Bennett Prescott with B&C has told me can happen in professional venues.

      I have not heard every 1" driver out there so this is not a 100% blanket statement. There may be some Ti that are better but I have not heard them.

    .

  15. On 4/18/2022 at 9:44 PM, M.Att said:

     

    I have my eyes on a pair of KP250s close by me, would the H3 upgrade work in these too or is the enclosure too different?  Assuming my wife hates the KP250 enclosure, has anyone moved the components to a custom box?

    DO NOT do that upgrade if even possible. The KP-250 uses the far superior K-42 woofer and you would lose that. Looking through my notes today and I can't find the KP-250 specs but if memory serves me well they have better sensitivity and also have 200 watts output and not 100 watts like the Heresy's. The crossovers are also different and the KP-250's have tweeter overload protection.

     

      There is no reason you can't build a new box for these if WAF is a problem. If you use 3/4" fir plywood you will duplicate the original material and maybe sound a bit better with the elimination of the space hogging handles. I would have to think those handles might resonate a bit too though no idea since I have never had with handles and no handles side by side to compare.

×
×
  • Create New...