Hardhead

The pie slice logo was still being used in 1973, which is when my Klipschorns and Belle were made.

The 4K TV is just an intermediate step: the 8K television (with 22.2 channel sound) has been under development for some time. http://tech.ebu.ch/docs/techreview/trev_2008-Q2_nhk-ultra-hd.pdf . I suspect the next step will be 360-degree televisions made with OLED's. You would, in effect, sit inside the screen So which one of you is gonna be the first to have a 22.2 channel home theater?

On September 6, 2010, greg928gts wrote: "I know from my own experience, even at fairly high volume levels (100db at my listening position), I prefer the gentle slopes to the steeper ones on my Behringer DCX2496." Yet on August 28, 2010, in a post to a thread he began entitled "I Tested Five Different Tweeters in My Khorns," greg928gts wrote in reference to listening tests he made using the Behringer DCX2496 on five brands of tweeters: "I did mention that I started off with a 12db slope, but changed to 18db because of the amount of midrange overtones making their way through with several of the tweeters. After I did the evaluations, I played around with different slopes with the tweeters, and that's when I realized that the Beyma CP25 had significantly less of those midrange overtones than any of the other tweeters. As such, a 6db slope worked great with them. I also think this may have something to do with the Beyma testing about 3db lower in output compared to some of the others with a pink noise test, yet when I listen to them in my Khorns, they balance out just fine. I think the midrange overtones that are stronger in other tweeters, affect the measured output using a sound level meter." In light of the above seemingly mutually exclusive statements by greg928gts, I note that, he states on August 28 that during the tweeter tests he heard obviously audible--and therefore obviously objectionable--midrange overtones on four of the tweeters. The objectionalable midrange overtones were reduced by the Beyma CD25 but only because of the reduced output of the CD25. In other words, the 6dB /octave slope worked well only with the CD25 and only because of the lower output of that tweeter and not because the 6dB crossover slope is "more correct." Greg928gts' whole August 28 statement and the results of his entire test of the five tweeters sound to me like an endorsement, not of a 6dB/octave slope or even a 12dB/octave slope or any kind of "gentle" slope crossover that he says nine days later he prefers, but, in fact, an 18dB/octave slope. For the close listening required for his tweeter evaluation, it is significant that greg928gts used the 18dB slope on his DCX2496, which is not considered a gentle slope in anyone's book.. His statement, "I prefer the gentle slopes to the steeper ones on my Behringer DCX2496" doesn't seem to reflect his own previous statements and observations. While he may, or may not, actually use a gentle slope crossover for everyday listening, his own words say that the Beyma CD25 driver is the only reason a gentle slope can work for him and not the steepness--or lack thereof--of the slope itself. Consequently, greg928gts' general statement of his preference for gentle crossover slopes is both inaccurate and misleading without those qualifications.

DrWho-- I'm not sure what drastic conclusion I jumped to in my previous post. Can you help me find it? I believe I made the point that we shouldn't choose horn/driver combinations based solely on test measurements, and neither should we choose them based solely on listening tests. Perhaps that concept could be considered radical in certain audio circles, but it seems basic common sense to me.

Does anyone else find it ironic that the tweeter which consistently generates the least distortion is the one that most--if not everyone--would agree sounds the worst? The K-77 is the tweeter that everyone wants to get rid of and replace with a different tweeter that has more distortion yet sounds better. That says a lot about choosing a horn/driver solely because it tests well. Of course, I understand that listening tests alone aren't the answer, either.

Seeing Phil Mickelson embrace his wife, whom he had stuck by through her fight with cancer this past year, after winning the Masters really put Tiger Woods' adulterous escapades in perspective: Mickelson is a great golfer and a wonderful husband and father. Tiger Woods is a great golfer and a miserable excuse for a human being.

JLOUNDER wrote: "They sound pretty good as is. Could sound better." Wait until you change the capacitors. You'll be surprised (delighted) at the difference.

After posting the above, I decided to see if I remembered correctly, and I did a search on the forum. I found this: http://forums.klipsch.com/forums/p/39663/360833.aspx#360833 . Apparently, Al was just trying to get to 7 uF and 40 uF instead of 7.2 uF and 40 uF.

I think I read somewhere, sometime, on this forum that Al said he bypassed the 6.2 uF with the 1 uF in order to get the resulting higher capacitance. I suspect that 7.2 uF capacitors may be hard to find. Of course, I could have dreamed I read that. I have no clue about bypassing the 39 uF capacitor, but it could be the same reason. You might try researching this in the forum's search function if you haven't already.

jm5546-- Why would you make up your mind about which side to locate the tweeters before you actually HEAR what the different positions sound like TO YOU, IN YOUR ROOM, ON YOUR SYSTEM? Since you can mount the tweeters on the inside or outside of your Klipschorns by simply turning the trachorn mounting board over, why not try it both ways so YOU can determine what it sounds like TO YOU, IN YOUR ROOM, etc.? If you can't tell any difference, then it doesn't matter, but then you'll know that for yourself. If there is a difference, which do YOU like better? It's YOUR system. Decide what sounds good to you instead of asking some else who may hear differently or not have the same taste as you and certainly doesn't have the same listening room or system as you. You should be trying to satisfy yourself, not someone else. Good luck with it.

Old-Tube-Sound-- Did you build the ALK networks, or did Al build them?

I've done it and didn't notice any change. If the backs are screwed tight to the cabinet, air gaps shouldn't be a problem; that's a big "if," though, because sometimes the wood of the cabinets can shrink or expand with too much or too little humidity and let the screws loosen a bit. If it will make you feel better about your speakers, do it; it won't hurt anything if you do it right. Be sure to use narrow weather stripping so the screws don't have to go through it. Also, make the weather stripping as thin as you can find, since any gaps would be VERY small.

I think it must have been the artistic water stain on the righthand speaker that drove up the price.

John-- I'm not sure you're going to get much information from a Heresy owner's manual, even if you can find one. There just isn't much information in the Klipsch owner's manuals, as I recall. If your Heresys haven't been messed with since 1976, they should have the Type "E" crossovers, but do open the back to make absolutely sure. You can find a schematic of the Type "E" crossover in the archives of this forum by using the search function. If that doesn't work any better than it did the last three times I tried to use it, ask someone here to post a copy. You'll be able to see the capacitor values that you need to order. I do suggest that you change out the capacitors. The deterioration in sound from old capacitors is so very gradual over the years that it's impossible to notice. Your speakers still sound good, but I guarantee they'll suddenly sound MUCH better with updated/upgraded capacitors. I suggest metalized polypropylene film or polypropylene film and foil types. You can see from the schematic where each capacitor should be soldered in--don't be afraid of doing it yourself. If you have trouble or questions, get back with us. If you're looking for binding posts, you can look at these http://www.partsexpress.com/pe/pshowdetl.cfm?&Partnumber=091-1245&CFID=10645242&CFTOKEN=68485385 , for example. Parts Express has several different types. I'm sure you can find one you like. Parts Express has some very good capacitors, too. Good luck.

joesportster-- I take it all back. Based on the contents of your posts above, now I really do think you would be better off and would no doubt get a better result if you let other people tell you what different tubes sound like rather than for you to attempt to judge for yourself.