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cwm

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Everything posted by cwm

  1. Marvel, I'm in the Niagara Peninsula about 22 miles due west on Niagara Falls, Ont./W.N.Y. No high tension power lines here, just the standard country runs along a rural highway. No gas lines (have to buy heating oil!) No sewer (septic system), no street lights, etc. Bass being so nondirectional its hard to approximate where its coming from. I'm on ten acres so I can move out away from reflecting objects--house, drive shed etc. If it is some kind of agricultural equipment I certainly would like to see what could produce a powerful deep bass thrumming like that. The SPL reading would indicate that its certainly airborne sound. Its weird to take an dbA reading and then watch the meter soar up to 75db on the "C" weighting. I'm going to keep up my late night sojourns to see what I can find. BTW, I hadn't realized that the New Mexico thing was electomagnetic in nature and not sound. That is scary!!
  2. First a little description of the area I live in, I live in a rural area (closest village 2 and a half miles away). There are no major size industrial plants within 10 miles. The only commercial establishments are 2 floral growing/distributing businesses, one a little over half a mile and the other about a mile away. There is a railway line that passes, at its closest point, about 1 mile from here. Its a freight line and quite busy 24/7. Heres the problem: Intermittently, in the late night hours after 10 p.m. local time and continuing into the dead of night, all through the winter and now into spring I have been hearing a very deep humming sound both in the house and, of course, outside. Outside its loud enough to create the sensation of a pressure on the ears. I own a commercial grade SPL meter (ANSI type 2) and will post here my latest readings, taken at 3:35 A.M. (yes, I take this seriously!) I'm in a quiet area as you can imagine with the exception of the odd passing truck out on the highway. Heres my readings taken 10 ft. from my back door. 40dbA, now heres where it gets interesting---- 75dbC!!!! Those who know the Fletcher-Munson characteristic etc. will understand that this is a HELL of a lot of bass energy. I will be posting a notice in the village convenience store to ascertain if other late night (early risers) are noticing this. There is no agricultural equipment that I know of that would emit such a collossal amount of LF energy. They do use a very strange device to install new rail ties but the diesel air compressor employed would be heard in the quiet countryside for a couple miles!! I do know very well the sound of a big diesel locomotive thrumming in the dead of night.....I'm at a loss, it kind of reminds me of the quasi-documentary shows doing short stories on the "Kokomo" hum and also those folks down in, I believe, New Mexico who were complaining about a "hum" that was driving them nuts. Again, look at the dbA vs the dbC readings and you can see the huge amount of LF involved........Any ideas!!
  3. I had/have no intention of ever approaching these levels, this was more academic curiosity. I'll have to speculate that at some instantaneous peak power of short duration the speakers might compress but for the big horns this point will be at slightly above the threshold of pain for most people!! Colin: 10log(base ten)*50w/1w =17db=50x=50w. (17db increase = 121db) Of course this would be be a free field reading....Its going to be hellish loud in your room!! 38 watts ref. to 50 is not even audible......
  4. The spec. for maximum output on the Khorn is 121db at a meter, this translates to 50 watts. The speaker can handle short duration peaks considerably higher than this. Is there any compression of the audio output on short duration peaks in excess of this power with this beast?? TIA..
  5. Hey, its a rough economy out there....!!
  6. "In our house WAF means Wife Always Furious - invariably about something I have either done or not done. Kinda comes with the territory..." I know you're only joking, but try this one from one of your countrymen.... http://www.angryharry.com As far as the rest of this thread I'll keep my comments to myself. (and my mind open!) Its not easy......
  7. It started out innocently enough. I began to think at parties now and then -- to loosen up. Inevitably, though, one thought led to another, and soon I was more than just a social thinker. I began to think alone -- "to relax," I told myself -- but I knew it wasn't true. Thinking became more and more important to me, and finally I was thinking all the time.> I began to think on the job. I knew that thinking and employment don't mix, but I couldn't stop myself. I began to avoid friends at lunchtime so I could read Thoreau and Kafka. I would return to the office dizzied and > confused, asking, "What is it exactly we are doing here?" Things weren't going so great at home either. One evening I had turned off the TV and asked my wife about the meaning of life. She spent that night at her mother's. I soon had a reputation as a heavy thinker. One day the boss called me in. He said, "Skippy, I like you, and it hurts me to say this, but your> thinking has become a real problem. If you don't stop thinking on the job, you'll have to find another job." This gave me a lot to think about. I came home early after my conversation with the boss. "Honey," I confessed, "I've been thinking..." I know you've been thinking," she said, "and I want a divorce!" "But Honey, surely it's not that serious." "It is serious," she said, lower lip aquiver. "You think as much as college professors, and college professors don't make any money, so if you keep on> thinking, we won't have any money!" "That's a faulty syllogism," I said impatiently, and she began to cry. I'd had enough. "I'm going to the library," I snarled as I stomped out the door. I headed for the library, in the mood for some Nietzsche, wih Mike Imus > on the radio. I roared into the parking lot and ran up to the big glass doors ... they didn't open. The library was closed. To this day, I believe that a Higher Power was looking out for me that night. As I sank to the ground, clawing at the unfeeling glass,whimpering for> Zarathustra, a poster caught my eye. "Friend, is heavy thinking ruining> your life?" it asked. You probably recognize that line. It comes from the> standard Thinker's Anonymous poster. Which is why I am what I am today: a> recovering thinker. I never miss a TA meeting. At each meeting we watch a non-educational video; last week it was "Porky's." Then we share experiences about how we avoided thinking since the last meeting. I still have my job, and things are a lot better at home.> Life just seemed ... easier, somehow, as soon as I stopped thinking. Soon,> I will be able to vote democrat.
  8. "You can find more info on Klangfilm here: http://klangfilm.chez.tiscali.fr/index.php?lng=0&type=0&frame=1 I've heared the Bionor, driven by Lamm and my Wavelength Gemini amps, and IMO it's one of the best speakers I've ever heared." Good Lord! Those 3way horns in the opening page picture look positively scary!!!!
  9. I have an obnoxious (at least regarding the subject of audio) friend who persists in delivering lengthy dissertations on why Khorns or LaScalas (or others) cant sound "right". BTW, he has of yet not heard my LaScalas! You know the type, they look at the physical layout of a/any speaker and make a pronouncement based on alleged mechanical faults with the physical design of the speaker. He claims that he doesn't think that the Horns can sound correct because of the physical separation of the drivers, particulary the mid and treble horn units. I found this site and directed him to the section on psychoacoustics, in particular section 4, Echo Experiments. The 10ms WAV would, I calculate, represent about .010 of the (approx.) 1130ft/sec speed of sound, this would translate to 11ft +/- for 10ms. The separation of the treble and mid drivers would be I think approximately 15-18 inches thus with 1ms equaling about one foot of sound travel the horns would be worst case about 2ms delayed from each other. The WAV file of 10ms has a non distinguishable echo or delay.(give a listen!) Does anyone agree that this seriously challenges the time smear argument put forth by my friend or am I missing something. Please look at the site........ http://sig.sapp.org/sounds/wave/00readme.html
  10. "in all of western civilizations reasonable records are kept regarding cause of death and as a whole - excluding a very limited group of exceptions - there is overwhelming data to suggest effective gun control reduces a society's homicide rates" This statistic is interesting but effectively bypasses the fact that in at least two countries (Australia and the U.K.) where draconian gun laws have been put into effect, the crime rate OVERALL has increased tremendously. Look it up. Additionally the statistic is misleading because one must look at who specifically is committing these homicides and invariably it is mainly the criminals killing other criminals and I might add with illegally obtained weapons. This particular piece of emotion over proper statistical analysis is endemic to the U.S., particulary with that social cancer called "political correctness" thrown into the mix........
  11. Though not really part of the group here I was touched by the pain and anguish in your post. Speaking as one who has literally watched two of my friends die (too young) and gently stroked my father's forehead until he slipped away, I know to a certain extent what you are feeling. I will say this, though far from a religious man, I cant help but believe that we are more than just "biochemical batteries". Additionally, the responses from your friends here have brought tears to my eyes................
  12. "P.S. It's not so much about "guns" as it is about fear and violence. Are you fighting for your "right" to be afraid and violent? That would be some kind of mental illness, I think." Re: Columbine, I think the argument could be made that its Luvox and the other SSRI drugs ( Prozac, Zoloft, Paxil etc.) that should be banned---at least as far as young teenagers are concerned.
  13. What drivers are used in these horns?? I'm trying to guess by the size of the horn mouth what the low frequency cutoff would be?? I'm guessing at about 38-40hz??!!
  14. "Reading your answer makes me think you're not too much into checking your sources of info either." Gong Ho----it was I who was also joking. I recall the account of witnesses seeing one of the perps laughing prior to their craft hitting the ship. Bloody awful. I trust you're not disputing the accuracy of the other items? Peace brother........
  15. "Be well, be happy, and beware of ostriches seeking lower ground." That was a "low" blow....(-: God Bless America!!
  16. Really? I knew about the "Cole" but had no idea re: the identity of the perpetrators. In any case, the above is not my list and the fact of the existence of other terrorist types takes nothing away from the reality of the above mentioned occurrences. I'm not into "political rectumtude"....I do love my LaScalas however. I'm a Canadian who loves your country and would hate to see it fall as a result of misplaced good(?) intentions. I find it curious as to why some become SO defensive when certain realities are pointed out. I'm speaking as a former "Menshevik" who ultimately learned the error of my ways........i.e. I'm almost ashamed to admit it, but I know the ways of the "party". cwman@canada.com
  17. There is not much to dispute here......unless you're an egalitarian dreamer with a messianic complex---no names mentioned........ Please pause a moment, reflect back, and take the following Multiple Choice test.... no need to keep score. The events are actual cuts from past history. They actually happened! Do you remember? 1. In 1972 at the Munich Olympics, athletes were kidnapped and massacred by: a. Olga Corbitt b. Sitting Bull c. Arnold Schwarzeneger d. Muslim male extremists mostly between the ages of 17 and 40 2. In 1979, the U.S. embassy in Iran was taken over by: a. Lost Norwegians b. Elvis c. A tour bus full of 80-year-old women d. Muslim male extremists mostly between the ages of 17 and 40 3. During the 1980's a number of Americans were kidnapped in Lebanon by: a. John Dillinger b. The King of Sweden c. The Boy Scouts d. Muslim male extremists mostly between the ages of 17 and 40 4. In 1983, the U.S. Marine barracks in Beirut was blown up by: a. A pizza delivery boy b. Pee Wee Herman c. Geraldo Rivera d. Muslim male extremists mostly between the ages of 17 and 40 5. In 1985 the cruise ship Achille Lauro was hijacked and a 70 year-old American passenger was murdered and thrown overboard in his wheelchair by: a. The Smurfs b. Davy Jones c. The Little Mermaid d. Muslim male extremists mostly between the ages of 17 and 40 6. In 1985 TWA flight 847 was hijacked at Athens, and a U.S. Navy diver trying to rescue passengers was murdered by: a. Captain Kidd b. Charles Lindberg c. Mother Teresa d. Muslim male extremists mostly between the ages of 17 and 40 7. In 1988, Pan Am Flight 103 was bombed by: a. Scooby Doo b. The Tooth Fairy c. Butch Cassidy and The Sundance Kid d. Muslim male extremists mostly between the ages of 17 and 40 8. In 1993 the World Trade Center was bombed the first time by: a. Richard Simmons b. Grandma Moses c. Michael Jordan d. Muslim male extremists mostly between the ages of 17 and 40 9. In 1998, the U.S. embassies in Kenya and Tanzania were bombed by: a. Mr. Rogers b. Hillary Clinton, to distract attention from Wild Bill's women problems c. The World Wrestling Federation d. Muslim male extremists mostly between the ages of 17 and 40 10. On 9/11/01, four airliners were hijacked; two were used as missiles to take out the World Trade Centers and of the remaining two, one crashed into the US Pentagon and the other was diverted and crashed by the passengers. Thousands of people were killed by: a. Bugs Bunny, Wiley E. Coyote, Daffy Duck and Elmer Fudd b. The Supreme Court of Florida c. Mr. Bean d. Muslim male extremists mostly between the ages of 17 and 40 11. In 2002 the United States fought a war in Afghanistan against: a. Enron b. The Lutheran Church c. The NFL d. Muslim male extremists mostly between the ages of 17 and 40 12. In 2002 reporter Daniel Pearl was kidnapped and murdered by: a. Bonnie and Clyde b. Captain Kangaroo c. Billy Graham d. Muslim male extremists mostly between the ages of 17 and 40 Nope, I really don't see a pattern here to justify profiling, do you? So, to ensure we Americans never offend anyone, particularly fanatics intent on killing us, airport security screeners will no longer be allowed to profile certain people. They must conduct random searches of 80-year-old women, little kids, airline pilots with proper identification, Secret agents who are members of the President's security detail, 85-year old Congressmen with metal hips, and Medal of Honor winning former Governors, and leave Muslim Males between the ages 17 &40 alone because of profiling. Let's send this to as many people as we can so that the Gloria Aldreds and other dunder-headed attorneys along with Federal Justices that want to thwart common sense, feel doubly ashamed of themselves if they have any such sense. As the writer of the award winning story "Forrest Gump" so aptly put it, "Stupid is as stupid does."
  18. "Anyway in 19and59 my Dad and I went downtown to see Ben-Hur. I'll never forget the opening blasts of the picture's overture music, never. It was amazing. And I was off on my interest in sound." Even though I was quite young when those "blockbusters" were out, I still remember listening to the soundtrack music from Ben Hur. You cant beat Miklos Rosza's stirring film scores----"King of Kings" etc.
  19. Does anybody here use a "Spatializer" (Stephen Desper's patent) for creating phantom channels? I run one with LaScalas and a Velodyne sub for movies and the surround effect can be quite convincing. For music I switch it out of the system, although the odd time I try running music through the Spatializer and the effect can often be interesting..........
  20. "Please explain how a LP can become "Magnetized?" Are you not confusing this with "Statically Charged?" Thanks, I was struggling to keep my fingers off the keyboard but somehow I feel the comment above is appropriate for this whole discussion!!
  21. "Stopping your low frequencies from disturbing your CD player and making all electronics parts and transport vibrate, has nothing to do with snake oil. Audio signals are so little they can be easily disturbed by spurious vibrations of the components. It's been measured." I notice people are bouncing back and forth between TT acoustical isolation and CD players. Turntables being mechanical devices from storage medium to playback mechanics (stylus, tonearm, platter etc.) would certainly benefit from mechanical isolation. You say isolation necessity has been measured and thusly quantified as to audible acoustical effects in the case of CD players, I will accept that if you can direct me to that sort of information. With the buffering of the data prior to hitting the DAC I wonder how this is so. (please no "golden eared" subjective evaluations!). The only data I can find indicates that the SPLs and consequent vibration effects would have to be enormous in the case of CD players and no one would want to be exposed to these levels.....(if things are so grim sonically, how do people tolerate them in cars?) Of course, with tubes the reality of potential "microphonic" problems with the tube elements themselves i.e. grid, screen, suppressor grid, cathode etc. are valid and acoustical isolation would certainly help keep things clean. I notice some here become very dismissive of even good natured disagreement and dont take the time to support their views with hard data and not audiophile consensus. In any case there is ultimately no harm in these isolation devices and they could be looked upon as a form of cheap insurance........
  22. Oh no, I agree, he looks goofy........!! (-: I would suspect possibly "a little sugar in his gas tank", but what the h&ll, live and let live, I guess..........I still think that Brit has his tongue firmly planted in his cheek with that freezer business, the Brits are noted for their sardonic wit........!!
  23. Well at least the guy apparently is a very good software engineer and "techie". I think the dialogue below (did you by chance read it?) has some relevance as well and by no means am I some "Bible thumper" (with no disrespect intended to those who are). The fellow makes a convincing argument for believers and nonbelievers alike.... http://throughthecracks.org/gender_article.html
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