Oicu812

Which is exactly how solid state radios work. A piece of quartz tuned to a certain frequency. They can also be made to glow. The process is called triboluminescence and it is easy to do at home if you have two pieces of quartz. Take one in each hand, and practice striking the sides together running the length of the sides. In a dark room, you will see blue sparks appear inside the quartz. Wintergreen Lifesavers will also do this.

Here are my opinions based upon me doing a Super Heresy upgrade (and we both know what most opinions are worth!): 1. Yes, you will get a bass boost swapping in the Eminence Pro 12A, and the port seems to help in that as well. I left one of my boxes unported for an A/B test and you could tell a difference, especially if the ported speaker was near a wall or corner. The woofer upgrade does work well for me, in my particular room. 2. Bass boost won't have anything to do with the crossover changes. No extra power is heading for the Pro 12A either before or after performing the x-over alterations. The crossover changes are to "harmonize" the upper portion of the woofer frequencies into the lower end of the squawker, and then the same to the tweeter. I feel that Claude's crossover changes are well thought out and executed. To explain this concept a bit further, the amplified signal is fed into the speaker and the positive connection goes into an inductor, and then straight into the woofer. The purpose of the inductor is to roll off the higher frequencies (plus the side effect of eliminating any possible DC current getting through). 3. You can use anything for the port material, as long as it is the same internal diameter, length, and most likely structural rigidity. Others might say something else. 4. I really can't answer the question about capacitors, because I am not one of the guys with extra critical sound discernment. Some claim to hear the difference between lower and higher priced caps, some don't. Some people also claim to hear differences in speaker cables. I don't remember ever seeing empirical evidence to this, where a double blind test was conducted, maybe someone else has. I went for the inexpensive caps, and they work fine for me. 5. Replacing failing caps will most definitely change the sound, usually moving the ball back toward the original line of scrimmage ( Closer to how the speakers sounded when new...). As far as tweeters go, I didn't do anything more than the adjustments on the autoformer to them. In a recent hearing test, I couldn't hear much above 10 - 11khz, so upgrading those would have done nothing for me personally, due to tinnitus. I have simplified some of this, and the more knowledgeable members may weigh in and elucidate further. @karlti

I would not want to forget and wear my mechanical watches anywhere near magnets of that size...

Those horn drivers appear to be the size of a Frisbee. Make that a brake drum from my old Plymouth.

With that veneer and finish, I would expect the value to be rather on the high end for 1980's Khorns.

No? And why not?

Shouldn't be that hard at all to replace. These are basically Heresy II's on steroids, and that's a damned good price on them. These are solid Birch Ply if I am remembering correctly, and much more robust physically and electronically than your normal Heresy models. Offer the guy $250, seeing as the tweeter pair should run you $100 if you put K-77's in them. I have a pair that I could be induced to sell.

Amen. I figure one of us should know what they're doing.

By this logic, my all original 1977 Heresy pair should be worth $2,500. Anyone want a really spectacular set of HWO for that price? .

Then why did they take them down and add a grand to the price?

The listing was taken down because of an "error" in the ad. He put them back up for $2,700.

The "signature edition" were a special edition of Heresy, with a different front emblem. If I remember correctly, Paul W. Klipsch worked on those himself.

All too young, I agree. I'm not too far off from his age myself, and I will miss bantering with him. I hope he and PWK can chat, somewhere in the universe beyond... My condolences to the Payne family, and our thoughts and well wishes go out to you. He will be missed.

They are actually HWO, Heresy Walnut Oiled. Walnut stained and oil finished. I agree with the pricing model as stated above.

Good call, there. Jim will fix you up with decent prices.

I would hope so. These cost a tenth of your Khorns, brand new.

If you can't measure it, it ain't science - Robert A. Heinlein And another: If it can’t be expressed in figures, it is not science; it is opinion. - Robert A. Heinlein I wish you were closer; I've always wanted to give these a try. And thank you for the paint idea, I now know what the new finish for my Supers will be...

@lumper The banana plugs will fit properly. If you look closely at the tips, you will notice that they are hollow, with the sides being leaf springs. This allows them to fit snugly in holes of any close size. Just make sure that you screw the binding posts all the way in before inserting the plugs. You don't want to bend or break anything.

I hope you get to walk that aisle one day. Jim is one of the most laid back, humble, and selfless guys you could ever meet. And he has quite a few good stories after 40 years of being on the road with Al. *<;o)

...Jim West, best known for his guitar work with Weird Al. Talk about a guy that can play anything, in any style. His personal passion is for Hawaiian Slack Key, and he just won the Grammy for best album in the "New Age" category. The odd thing about Slack Key is the weird tunings, because guitars were left behind on the islands after the early explorers visited, and no one really new how to play them. So the indigenous people tuned their instruments differently than anyone else, which means completely different chords. Different hand shapes. I could never master a guitar with the "normal" tuning and the myriad chord shapes. Then add on a dozen major tunings from all the different islands and styles. Mind boggling.

I was mainly making a joke. Other people got it. But not everyone is the same, I guess.

I think it was all of the brass screws and washers looking random on the motor board. It just looks sloppy to my eye. On the back they "countersunk" screws without actually using the proper techniques. Just ram them home, as deep as you can with a drill. Nothing looks aligned properly in my opinion. I'm sure it's functional, but it would bother my OCD.

That's a very cool piece. I find the tiny CRT just adorable. *<:o)

Good move. Snap it up before it goes away.

I wonder how much he would be asking on the reel-to-reel. *<;o) For posterity, in case the Craigslist ad gets deleted: