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Everything posted by JohnA

  1. The Type AL crossover started in 1982 or perhaps late 1981. John
  2. Karen, you could search the BBs for ALK Crossovers and look here: http://www.alkeng.com/xocomnt.html John
  3. The power ratings are maximums (and without significant distortion at that). You should never use that as a guide to your amplifier size. A Quintet probably should not see more than 25 watts continously or if will fry. John
  4. One pair of my La Scalas is 20 years old and did not "need" any updates. I have modified them slightly, but many would say it wasn't needed. The speakers hold up VERY well for dozens of years. John
  5. I use a KLF-C7 as my center channel with La Scalas as mains and surrounds. The C7 is a pretty good match, if not perfect. A Heresy from the same year would probably be better. I was looking for Heresy surrounds when I found the rear La Scalas cheaper. I use a pair of VMPS Larger Subs driven by a power amp that supplies about 400 watts to each one. When in the corners, they can keep up with the La Scalas. At sane volumes and below their distortion is low enough that they blend well with my La Scalas. Your biggest problem is going to be finding a sub(s) with enough low distortion output to keep up with La Scalas. John
  6. The reason DD is the dominant audio in theaters is advertizing. It's the same reason Bloze sells the most speakers. John This message has been edited by John Albright on 11-28-2001 at 01:23 PM
  7. What are you doing in Morocco?! I love the food and hope to go there myself someday. What about traveling to France to buy Klipsch? Or Spain? John
  8. A small amount of difference is often the voice coil rubbing, probably due to excessive heat. For a really large difference in output I'd look at the crossover for bad solder joints or bad components. first swap the K-55-V from one speaker to the other. If the low output moves it's the driver. You should be able to get it overhauled for about $75. John
  9. Ray, The published graphs of the La Scala I have show it is at least as smooth as the K-horn above 60 Hz. Below that the response drops like a bluff. The La Scala has a 1 or 2 dB hump about 200 Hz that would make the La Scala sound a little "warmer" than the K-horn, but they are remarkably similar in response (above 60). The 45 Hz rating seems iffy. John
  10. Ross, I think you're seeing shadows and reflections, too. John
  11. PhilH mentioned several months ago that ferrofluid is so common now nobody bothers to mention it. I believe he said Klipsch has used it in selected drivers for some time. John
  12. The B is not part of the SN. The N indicates 1974, if I did my math correctly. It should have been a good year. They should have Type AA networks, one of the better designs. John
  13. 65 wpc is enough to push ANY Klipsch speaker. The better question is is the amp of high enough quality to sound good? John
  14. I'm considering a new DVD player to replace my Sony DVP-S3000. It's not old but will not pass DTS on DVDs. It sounds great on Cds and I don't want to give that up, either. There was a thread on this BBS about DVD players, but I can't find it. Where can I find DVD player tests to help with my evaluation and what is the Chroma Bug? John
  15. Unless a driver is damaged, no note should make them crackle. John
  16. Horns have a low frequency cut-off based on their dimensions (length, mouth area, etc.). Some Heresies used a K-55-V squawker driver with their K-600 horn. The K-55-V is capable of going down to 110 Hz, but the K-600 is not. It is intended for use above 600 Hz. It's true cut-off is probably 450 to 500 Hz; somebody will know. Below the true cut-off frequency the driver diaphragm will unload, there will be little output and it can be damaged by excessive excursion. You must be intending to use the squawker and tweeter near your TV and let your sub pick up the lower frequencies. It would be a VERY unusual sub that could hit 600 Hz. I think you'll be disappointed with the results. I'd keep the Heresy intact and crossover to the sub at 100 Hz, or get a real center channel. While it would probably be better for your amp and would make the crossover behave as designed, I don't think inserting a resistor in place of the woofer is necessary. You would need a very high power resistor to ensure it didn't burn out. Squawker is a term coined by Mr. Paul, so we all seem to keep using it. John
  17. Happy Thanksgiving to all of you on the BBS, too. John
  18. The teflon insulation has less capacitance than PVC. That's why it's better. John
  19. A woofer's excursion increases as the frequency goes deeper. To test the phase of the woofer, use a 1.5 volt battery and connect it to the terminals. When the + terminal of the battery is connected to the + terminal of the driver, the cone will move forward. Normally the - terminal of the speaker wire connector is connected directly to the - terminal of the woofer and the active elements are on the positive side of the circuit. There is no reason for this, but it seems to be habit. Expect black wires from the crossover to be negative, but be sure to connect both speakers the same way. John
  20. '79 should be one of the best years. Check to see if the K-55-V has solder terminals. If it does they are the best of the early versions. Avoid the Type AL network. You can change the Type AL to a Klipsch Type AL-3, the latest rev. or to Al Klappenberg's crossovers. Al's crossovers are a just audible tad hotter on the tweeter section than the Type AA and noticably clearer. John
  21. JohnA


    Age certainlyreduces HF hearing in our noisy industrial culture. However, I prefer age to most known alternatives. John <50
  22. I have a set of ALKs in my rear channel La Scalas that had Type AL networks. They work very well. The tweeter is slightly hotter than the front La Scalas with Type AA networks; just enough to tell. I looked at it and decided I couldn't buy the parts enough cheaper to make building myself worth the trouble. John
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