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The Klipsch Audio Community


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About Arash

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    Horn speaker veteran

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    Planet Earth!
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    Vacuum tubes, Horn speakers, Electronics

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  1. you will love Faital Pro HF10AK + STH100 horn even more
  2. Edgar style Tractrix horn with cuttoff frequency about 258Hz.
  3. instead of a two way Khorn I would suggest going three ways with following combination. you have the woofs already. those are O.K Faital pro HMF200 or B&C DCM50 (I would not suggest to use BMS 4592) Faital Pro HF10AK with a Faital Pro STH100 horn or 18Sound XT120 Horn
  4. rest in peace to a great figure in sound industry who contributed so much to listening pleasure of many audiophiles. His LX521 design was a game field changer indeed.
  5. go for solid core OCC copper wire and don't look back.
  6. I think I'm in a language barrier with above quoted sentence. Can anyone please interpret it to me?
  7. I thought maybe someone else needs something like this so hereby I bump the thread this thing has saved hundreds of hours of my time during last year
  8. Hey guys. I almost forgot to post the result here. the machine was completed a few months ago. it's doing what it was designed to do. take a look at video below. the bobbin was deformed due to countless of tests but I have no other video in my cellphone rightnow. I'll upload a better and longer clip of machine in action within a week. In the video below you see AWG#10 copper wire (2.5mm ⌀) and we have tested wires as thick as AWG#5 4.6mm ⌀ with no problem though we may never build inductors with AWG#5 wire! it's crazy
  9. if finally anyone can provide a 3D scan of K402 I would build it using BB plywood and submit a thread with tenths of pictures for details just like other threads of mine.
  10. We recently acquired a big metal milling machine. this machines are super accurate. far more accurate than wood CNC routers. If I had the drawing of K402 I could build it using slices of BB plywood. it would look generous with plywood. something like Eliptrac but with least sanding needed at last assembly stage.
  11. I'm almost disappointed from getting a pair of K402 from US or finding it's plan to build one myself. I'm gonna try to build my own conical-tractrix horn so see how it sounds on-axis/off-axis. designing a horn with conical beginning and tractrix ending is not something very routine. if you have any idea or tip about this it would be great to share it here.
  12. how would you draw an arc on a paper?! you'll be only drawing the area of it not the arc geometry
  13. we machined another aluminum part for the stepper motor: we also bought encoder and the stepper motor for ballscrew: next coming days we are gonna test the machine. we are a little anxious if using an electro motor is a good idea fundamentally. we will test. we may change the plan a little bit and use a huge servo-motor as the main spindle motor. it depends all on the electro-motor and if we can control it's start and stop. I think the electro-motor is fine as almost all other machines all over the world use electro-motor not servo-motors! one way or the other we're gonna find out soon. Oh! by the way I wanted to share some pictures of liquid ring vacuum pump a knit friend of mine developed here with full circulated system. It works 24-7-365 with almost no maintenance costs. 200Cubic meters/hour (~118CFM).
  14. George, Thanks for your energetic reply. sure I'll let you guys know how it will turn out at last
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