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Dope From Hope!


Mr. P

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Klipsch used to publish a book called "The Audio Papers", and a newsletter type thing called "Dope from Hope" - "a spasmotic publication of the engineering department at Klipsch (before Dope got a bad conotation). Is this information available on this site? Is anyone interested in any of it?

Let me know if there is any interest.

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When I was a Klipsch, there was a grand total of 110 people working there, including the sales force. We all wore a lot of hats. I worked with Paul on Speaker design and modification, I ran tests on new or modified drivers and crossover networks. I did a large part of the customer service work for people with home systems as well as some service work with the commerical sound equipment. I made changes in factory systems and test booths.

In other words I was a "free agent" and I was never bored!!!

I noticed today that the Klipsch home page has some archive pictures for desktop use. One shows a plexiglass K-horn that I used to do some experiments on cone excursion in the bass cabinet. I mounted a ruler inside and glued a white paper diamond on the back of the cone.

You could then put a sine wave into the speaker and use a General Radio strobe light tuned to a slightly different frequency to make the white diamond appear to move very slowly. I was able to take maximum excursion measurements visually.

Sounds dull to some, but I really enjoyed it.

More later.2.gif

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Nice to meet your Mr P.

Did you work at Klipsch the same time Andy did? He was the Cornwall builder guy in the late 70's early '80s. He posts a lot here and has helps quite a bit for us who refinish and repair our older beloved Heritage.

Also do some searches about 2 years ago, he posed a lot of pics and stories of the old days at Klipsch. Very fun reads.

Looking forward to your future posts1.gif

JM

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JM,

I was there during that time frame, and I probably knew him. I have slept too many times since then and met too many people to remember him from those clues.

I guess you mean he did the final assembly work on the Cornwalls. That was installing drivers, crossovers, back, riser base and grill cloth.

I will be looking for him.

I will start scanning the Dope from Hope as soon as I can. You shouldn't have to buy that stuff!!!9.gif

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Actually, Andy's handle is: HDBR Hersey Birch Raw Decorator

He worked primarily on the HDBR models but did have his hands on most other models too.

I believe Andy was primarily involved in the construction of the enclosures instead of final assembley.

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John Albright, I did not have any direct involvement with your LaScalas. I was already in Texas building "Spy Planes" at that point.

I helped develop some improvements to the LaSacla, however, the most effective change was rejected by the marketing and sales force because it was ugly.

It is still a needed change to correct a notch in the frequency response of the bass section at 150Hz. The outside wall of the bass section vibrates heavily and cancels the bass at about 150Hz. A brace should be installed to tie the outside wall to the dog house section.

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I would be interested in any of the Klipsch technical publications (yes, I bought the "Dope From Hope" reproductions off the internet). There was also another publication call "Frequency Response" from the mid '80s. I don't know how long Klipsch published that, but I have about 4 of these that I received shortly after I bought my KG4s in 1985.

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Well, Mr. P,

Some of us have discovered the brace ourselves and I'd have to agree it could easily be ugly. Mine had already been finished beautifully before I decided the side walls of the bass horn needed stiffening. i'm not willing to risk screwing them up to add the brace, now. Confirming my suspicions is/was the HPS4000 version if the La Scala and, of course, the Peavey FH1. I did not realize what the brace did in the FH1, and didn't see the HPS4000 until after I bought my La Scalas.

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