Jump to content

Full Range

  • Posts

  • Joined

  • Last visited

  • Days Won


Posts posted by Full Range

  1. This is my first post, though I've been lurking for a while. I'm start to build a pair of La Sacala clones. I'm using the Elliptitrac 400 horn and Eliptitrac for the skwawker and tweeter along with the La Scala bass bins using plans that were included in another post here. I have a question the bass bin plans, so if this isn't the appropriate place for the question, let me know. The question is regarding the dimensions, particularly using 3/4 plywood. It appears that if 3/4 material is used throughout, the horn narrows from 3" wide to 2.75" at the 1st turn (where it turns to towards the front). Am I seeing that correctly? And if so, so if impact the response? I'm sorry if this seems like a beginner question.


    Here you go - have a look at this thread first ( it's more than a La Scala bass bin thread ) and if you have any questions just ask


    • Like 1
  2. Hello fellow members. I am looking forward to build a horn in wood with K-402's profile. A clone in wood. Are there any plans or does anyone know of its modified tractrix profile. It is not possible for me to see or hear one in person where I live so I need some help from you people :)

    I was thinking about this subject all week

    And I don't believe there are any real plans available

    Then I thought about an Eliptrac version of the K402

    Don't think Dave would do it but if he did I would buy a pair

    Come on Dave how about it

    • Like 1
  3. A couple of light installations on a cruise ship

    Good eye. I also love found patterns. I look for them everywhere when I have my camera with me. The moment you create an edge around a pattern, you have an abstraction that expands it's possible meaning. Do you have others?

    I have taken a few

    Here are some more





    • Like 3
  4. I am blessed to have my highly tweaked La Scalas

    They just make me happy listening to them every time I play music, and that's just about every day

    However I have been known to say that I would only swap for a pair Jubilee's

    But the K - 402 horn suggestions above are giving me ideas

  5. And this is how my La Scalas are braced but they also have double thickness side and back wallsattachicon.gifimage.jpg

    Very nice indeed - did you make the braces yourself -you have 6 braces on the cab - 2 bottom - 2middle-2 top - plus thicker walls on the sides and back - I would have thought that 2 braces were sufficient -

    are these scala 2 or scala bins - that would mean you have at minimum 1.5 inches on the side and rear - how have the braces helped overall not including the bottom bass port -

    Bruce is correct there is one brace in the centre and the others at top & bottom are wood strips for the grill

    The extra thickness has helped immensely

    To your other question - All the cabinets are professionally built to Klipsch plans ( they are not factory made ) and I am the second owner

    The bottom bass bin takes the bass range to below 30 htz when used with the Crites 15" cast driver to my ears

    Anyway you can read about some of the build here - https://community.klipsch.com/index.php?/topic/108425-la-scala-bass-reflex-mod/

  6. Don't Use glue on the dog box cover instead use automotive foam weather tape its self adhesive on one side and available in several thickneses

    Use new driver gaskets if required

    Never use any damping in the dog box

    You can use wood glue for joins as required

    You can use a clamping device to stop bass driver resonance vibrations

    Budget allowing my recommendation is to replace the crossovers with modern alternatives

    Brace the side walls with extra Ply or MDF to add thickness OR add external braces but I prefer x 4 per cabinet (2 per side) see link http://www.klipschupgrades.com/lascalabraces.shtml

  7. Those autoformers are sold by a gentleman called Werner Jagusch. They can be either purchased off ebay, or from him directly (which might influence the price slightly). I use the same units (with 1.5db steps) and have asked him also for bass inductors. To my ears his units sound more open than either the Klipsch autoformer or solen air core inductors. I am a very satisfied customer indeed.


    Thanks by the way for elaborating a bit on the Jentzen wax coils - it was a useful description.



    It was my pleasure Wolfram - glad to help another enthusiast

  8. Thanks Full Range,

     Its all German to me. :)

    Here is a copy and paste of the English version for your good self and other members

    ( please note my autoformers are @ 1 dB increments )

    A pair of autotransformers to allow the perfect adjustment of volume improvement of phase for mid-range and high-range hornspeakers.

    The sound volume can be adjusted in 14 steps, each at 1,5 dB per step. Other extraction stages are available on request.

    Very high quality versions wound on Double Core.

    This is for all horn enthusiasts who want to get the absolute optimum out of their speakers without using resistors and volume controls.

    The old horn specialists such all use autotransformers.

    Klipsch corner-horn without autotransformers is unthinkable.

    Unfortunately, autotransformers have been largely forgotten.

    However, they have great advantages compared to conventional crossovers not only when looked at from a technical point of view (see electrical diagram) but even more so when comparing the sound quality, which improves immensely.

    Horn and woofer build a homogeneous entity, becoming more coaxial, they perform together and not separately.

    The aficionado/ adept will know exactly what I mean.

    The old master Shindo employs autotransformers and paper in oil capacitors. He knows why!

    +++++++++++++++A few explanatory notes about the autotransformer (AT)+++++++++++++++++++++++++++

    The AT is used for level adaption on multiple-combination loudspeakers.

    The operating mode is similar to that of a power transformer, for example from 230 to 115 volt, it thus forms a voltage divider for AC voltage. The advantage of an AT however compared to alternating current voltage dividers lies in its much lower internal resistance, below 0.1 Ohm.

    Thus the electrical damping of the connected loudspeaker is considerably higher. The power factor (BxL) also takes on considerably higher data. This is a very important factor when operating horn-drivers, as the BL-faktors have a great influence on the characteristic curve.

  • Create New...