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Bossman

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Posts posted by Bossman

  1. I m using a NAD 3020 amplifier that sounded good with many other Klipsch speakers that I have owned including CWII, Heresy's, KG4's, RF-3's, and a few others.. These Forte II's are in the same position the others were in.. I've never had this problem with the others.. I listen to vinyl, CD's, MP3's, and my flat screen with an external DAC. Maybe these Forte II's are just revealing all the flaws in the recordings and broadcastings, but I find it hard to believe since my other speakers sounded nice. These speakers are on the verge of sounding very nice, if it weren't for the harsh tweeter.. the bass and mids are very nice..

  2. William F. Gil McDermott, I did the tests above and all is good.. it seems like the harshness is in the tweeter. The midrange and bass sound very nice. I have experimented with applying masking tape over the tweeter, and then experimented with different sizes of masking tape.. this seems to help tame the harshness, but obviously not right.. without the tape, the " S " sound is exaggerated especially with female dialogue and male voice also.. Is it possible a flaw in the crossover point of the tweeter, maybe set to low?

  3. I am in the same situation. I purchased some Forte II's about 3 weeks ago and they seem very harsh to me also.. I get listening fatigue quick. I have to turn the treble almost all the way down on my amp to get them to be listenable. . I wanted to do the Crites upgrades but I am worried that it would get worse.. I have never had another pair speakers that were as harsh.. almost seems like the tweeter is crossed too low or something..

  4. I didn't get anything today, but yesterday I picked up a pair of Forte II's for $300. Been listening to them, and the tweeter seems a bit harsh, but the bass and midrange sound very nice.

    • Like 3
  5.  

    Time aligning the drivers really doesn't seem like an option.

    Because...?

     

    You can time align the midrange-tweeter easily by removing the K-77 tweeters from the cabinet and placing them on top of the loudspeaker, centered at the back of the cabinet, approximately aligned with the midrange driver (K-55) below it.

     

    Moving the tweeter fore and aft on top of the cabinet, you will hear it come into focus when the time alignment occurs.  From there, you can listen and determine whether or not it's worth your time to place the tweeters in small baffles, like Bruce did with his replacement tweeters (top picture).  It's this midrange-tweeter crossover time misalignment that has the greatest effect on the sound of the loudspeaker. 

     

    While I actually do not recommend removing the midrange horn/driver from the cabinet due to the benefits of clamping the midrange horn mouth to the front baffle to eliminate ringing, I don't see any reason why you couldn't simply rest the tweeter on top of the cabinet, like Michael (Thaddeus) did in the bottom picture, but aligned with the midrange driver below it.  This actually has more benefits in terms of eliminating the "looking through the baffle" effect of having the tweeter mounted to the rear side of the front baffle thus improving its polars.  You can also turn the tweeter vertically to get slightly better horizontal coverage performance (...in fact ElectroVoice's recommended orientation).  Simply put something absorbent on top of the cabinet to absorb the reflections off the top of the cabinet, and you're good to go.

     

    APT_baffle_04.jpgIMG_0244.jpg

     

    One should consider the dispersion pattern of the tweeter horn to prevent sound waves from hitting the surface they sit on. This can be a upgrade to an upgrade.

  6. I would estimate approximately $800 for a pair of used CW's is fair. I acquired my Cornwall II's in a trade for a pair of KG4's and a pair of KG3's. Mine get used Monday thru Friday 9 to 5 at my work shop. I really enjoy them. I will be performing a Crites Cornscala upgrade soon.

  7. For Khorns, I physically aligned my mids and tweeters and it helped. This is the lowest they can be with a slight tilt without having effects of hitting the top of tophats. The drivers are now horizontally and vertically aligned on top. They are VoltiT1 tweeters. We have made blindtests and everytime we ended up prefering this to tweeters being in the tophats to the sides (volti upgrade fits inside tophats like that). Here are two photos:

    Hi Kodomo, I have done similar testing with aligning the tweeter to the mid as you have. I think the difference is quite noticeable. It is very irritating receiving sounds produced from the tweeter before the midrange. I notice this effect more when the tweeter horn has a more narrow dispersion pattern than the midrange, especially when combining a large midrange horn with 90 to 100 degrees horizontal and more than 60 vertical with a tweeter that had a 40 degree conical dispersion. Last week I started a new 3-way horn loaded speaker build with the emphasis on time alignment because of the issue.  A member replied with the delay the specs in milliseconds, and this may seem like a small measurement, but it makes a big difference in sound. 

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