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  1. Hi I've got a mis-matched pair of K-400's, 1 early and 1 late style. I'd like to buy one to match either or trade if someone is in the same boat. Thanks, Don
  2. Hi I've got a mis-matched pair of K-400's, 1 early and 1 late style. I'd like to buy one to match either or trade if someone is in the same boat. Thanks, Don
  3. Thanks, What I noticed is that the newer seemed a little more open and livelier, while the older less so, perhaps heavier is a good way to describe it. In the end I got a little confused about what I was hearing because I was trying different amps and swapping K-55V drivers. Also one of the speaker positions is next to an opening to a another room and that effects the sound
  4. As I mentioned in another post, my pair of La Scala's were made in different years. 1 is from 1975, and the other from 1978. The 2 K-400's have slightly different castings. The later one has a smooth outside of the throat, and the other has small square bumps about midway on the throat. I've also noticed that the flanges that mount to the cabinet are different as well as the opening of the plywood. Can someone explain the reason for the differences between the two and if they can be used together? The sound the same to me but I am curious what the wisdom of the group has to say. Thanks
  5. Excellent. That's what I've done in the past with other drivers
  6. Hi Mike, Here's the one I downloaded the other day. The last 8 in the date isn't very clear to me and I thought it was 8/20/92B instead of what's written with the year first. Now that I've seen the schematic you posted, I can see where the Zener has been edited out of mine. Don
  7. Thanks. I did it at low volume and the drivers are fine
  8. Thanks for everybody's help. I think I've found the problem. My La Scalas with the AA crossovers have L-pads for the tweeter and squawker. Mine were originally sold along with a Rodgers electronic church organ. Both of the L-pads are really dirty. At one point I touched one to adjust it and heard the distortion or crackle. I'm in the process of cleaning them now, perhaps even removing them
  9. Thanks, I thought I'd get in there with some DeOxit when tightening.
  10. KT88, Thanks for bringing this up. I'll check it out. I think I found the source of the noise. I'll update the other posting.
  11. Hi Mike, It's funny, the copy I downloaded the other day looks identical except for the Zener. Thanks for providing this.
  12. Thanks, The La Scals's I've seen like mine, which were sold along with a Rodgers Electronic church organ, have the variable L-pads which I previously called rheostats. They're 2-wire tapped off the positive leg. I called Crites a few days ago, and they just got back to me a moment ago. I guess their answering machine was down for a day or two. Nice folks
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