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djk

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Everything posted by djk

  1. djk
    http://www.parts-express.com/hp-8030-8-poly-cone-woofer-with-rubber-surround-8-ohm--299-2128
  2. djk
  3. djk
    Two mid drivers on a single conical horn with the HF driver at the apex of the horn.
  4. djk
    Altec 902, no. K55V, yes.
  5. djk
    Heresy, 3% FMD at 90dB Cornwall, 3% FMD at 100dB Klipschorn, 3% FMD at 110dB (40hz and 350hz mixed)
  6. djk
    The EAW CP621, and various Renkus-Heinz predate the Danley.
  7. djk
    Try removing the elliptical filter.
  8. djk
    Read PWK on FMD, you are not talking the same things.
  9. djk
    "Couldn't see spending that much on woofers that only had 6mm xmax" 5mm will have excessive FMD when trying to cover three octaves (or more).
  10. djk
    This is the one you want. TD15M-4ohm Fs: 34.7Hz Qms: 5.09 Vas: 312 L Cms: .3 mm/N Mms: 70 g Rms: 3 kg/S Xmax: 6 mm(peak) Xmech: 10 mm(peak) Sd: 855 sqcm Vd: 1.02L (p-p) Qes: .35 Re: 3.2 ohm Le: .2 mH Z: 4 ohm Bl: 11.81 T/m Pe: 300W (cont.) Qts: .33 1WSPL: 97.7 dB 2.83V: 101.7 dB
  11. djk
    "That's not a diaphragm that you linked to nor is it $20.00." The link is to the only decent functioning K77 diaphragm that I am aware of, and no, it's not $20 "The seller "simplyspeakers" sells quality replacement parts. I've used them numerous times." The $20 ones "simplyspeakers" shipped me are complete and utter garbage (I own test equipment too).
  12. djk
    "You still at the Rock?" For the time being, the company is making a serious effort to get the old dogs to quit. What are you up to?
  13. djk
    The foam in the mouth of the Peavey horn is recessed into the walls of the horn, the horn is stepped back where the foam is.
  14. djk
    You need a new diaphragm, the brown piece on the magnet must never come off the black piece on the horn. The $20 aftermarket diaphragms are garbage. http://www.ebay.com/itm/Klipsch-La-Scala-Factory-K-77-F-Tweeter-Horn-Diaphragm-Faceplate-Assembly-127126-/151254367672?hash=item2337767db8:g:jcMAAOxy3HJTI3ez
  15. djk
    "I have BassBox Lite and like it. I'll run it with these parameters and see what happens." The numbers I gave were using BassBox v5.183
  16. djk
    " Fs=33hz Qms=4.61 Vas=6.02 cu ft X-max=3.91mm Sd=86 sq in Qts=.351 No=1.55% SPL=94.8dB/2.83V/1M Qes=.38 Re=6.8 Le=1mH (not sure of this) Z=8 ohms Bl=15 Pe=100W " I used these parameters years ago to build a 5,000 cu in box tuned to 33hz, or 10,000 cu in for two. Used with a Q=2 high-pass filter at 33hz they sounded incredible. I used an Atlas PD4V on an Electro-Voice 8HD horn, and the same Motorola KSN1016A tweeter Klipsch used in the MCM1900 five-tweeter array.
  17. djk
    It varies. As the stamping tool wears it is refinished, so the frame gets larger in diameter. At some point a new tool is built and it starts all over again (small).
  18. djk
    Goop! (shoe goo) is great stuff for this kind of repair, don't let it get onto the roll of the surround though.
  19. djk
    "I think that Nelson Pass said that if you can keep your hand on the heat sink for five seconds or so, it is okay." Yes, and that's about 140°F. The ADS powered car speakers would thermal out in direct sunlight, and not even turn on.
  20. djk
    "You didn't just open the PE catalog and decide all those parts would work together, someone did a lot of research and thinking to come up with that. Is there a back story, or a project you have put together some time in the past?" I own all of the parts I linked to, and also use a speaker with the CA154 biamped with the EV DH1a and HP940 for PA. The horn was used in the Club Series Yamaha monitors (with an Eminence driver), and sounds quite good.
  21. djk
    "given the name" His wife?
  22. djk
    I've done it with the Cornwall, it works well.
  23. djk
    "What's the difference between them?" Nothing.
  24. djk
    "Maybe because PWK chose permanent magnets as the more thrifty "solution?"" Original Klipschorn used a field coil driver. If you read the article about it one of the measurements he made was with the field coil shut off.
  25. djk
    Older Krells used 200°C rated Motorola transistors, they run just fine at junction temperatures of 100°C. Capacitorshave reduced life in amplifiers that run as hot as your Krell does.
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