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garyrc

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About garyrc

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  • Location
    The Milky Way
  • My System
    Main room: 2- 1982 Klipschorns with K-401 fiberglass mid horn upgrade (1987), and AK-4 Klipschorn stock upgrade (2006), Modified Belle Klipsch (2005) center channel with K401 horn in an enlarged hihat, 2 NAD C- 272 ss 150 wpc stereo power amps, Marantz AV7005 AV preamp/processor, Heresy II surround speakers driven by 1/2 NAD C-272 and a Yamaha 135 wt amp, NAD C-542 CD player, OPPO BDP-93 CD/SACD/DVD/Blu-ray player, Klipsch RSW-15 subwoofer, for movies only, Panasonic projector, 130" true width 2.35:1 projection screen (141.3" diagonal).

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  1. bought some used la scalas

    Eventually, consider some horn loaded subwoofers. La Scala has very low modulation distortion, is very clean and clear, and was rated "A" (the top grade level) for speakers that don't go all the way down in the bass by Stereophile a few years ago. La Scalas don't veil the sound -- some people like bad recordings veiled a bit. Experiment with turning up the bass. From about 60 Hz up, they are hard to beat. For more bass, try putting them against a wall, or in a corner. If you put them in a corner (preferred, for maximum bass), put a few acoustical pads on both side walls, starting at the place a line across the front of the midrange and tweeter would touch the side wall, and for about 2 feet farther out into the room. This will prevent early reflections from the side walls. A throw rug in front of the La Scala where the sound from the mid/tweeter would hit the floor might help, also.
  2. Happy Birthday AMY

    Happy Birthday. Hope your ducks are in a row, singing to you!
  3. Heresy placement

    From Paul W. Klipsch's Eight Cardinal Points to support good sound reproduction: 5. Freedom from cavities. The space under a speaker box formed by mounting it on legs can destroy the bottom octave of response and deteriorate the next 2 octaves.
  4. "The Vietnam War" on PBS

    You have not said too much! Here is what Walker said, in regard to a report asked for by Milton Eisenhower (the ex-President's brother): "What I wrote in my personal summary of the over-300 page fact-filled documentation of the tragic events is this: 'A majority of Chicago police acted responsibly; a minority engaged in violence that can only be termed a police riot ... No one who reads objectively the facts detailed in "Rights in Conflict" could reach any other conclusion regarding a minority of the police on duty; those facts were taken from many hours of movies, thousands of still pictures and thousands of eyewitness accounts, including those contained in over 1,000 FBI statements taken from participants. ... That violence was made all the more shocking by the fact that it was often inflicted upon persons who had broken no law, disobeyed no order, made no threat. These included peaceful demonstrators, onlookers, and large numbers of residents who were simply passing through, or happened to live in, the areas where confrontations were occurring. Newsmen and photographers were singled out for assault, and their equipment deliberately damaged. Fundamental police training was ignored; and officers, when on the scene, were often unable to control their men. As on police officer put it: "What happened didn't have anything to do with police work.' "
  5. Good speakers last and last. I had some JBLs that now live with a friend that are going strong after 50 years. That includes crossovers, despite the advice to change caps every 25 years, or so. I have some EVs, with x36 crossovers, that lived with me for 10 years, then got used every day at SFSU for 21 years, then came home and have been providing TV sound in our bedroom for the last 14 years, for a total of 45 years, no cap changes, and sound fine. My Khorns are mere babies, having served for 23 years, then had all the guts changed except for the K33E woofer (same as in the Cornwall 3) for an AK4 upgrade in 2005. All of these speakers have been played for several hours per day, except when we went on vacation, and on weekends for the ones that resided at SFSU for a while.
  6. Even with all EQs and tone controls turned off? Well, I guess it's possible. I'll keep that one on the list as I'm trying different things with the whole system. Yes, but maybe not yours. I had a Yamaha power amp and a Luxman at the same time, and the Luxman seemed smooth as silk, and the Yamaha a bit strident, either with or without tone control EQ. My NADs are less bright than the Yamaha. I still use one channel of the Yamaha for a Right surround, and it is harsher than the NAD powered Left surround. No, I haven't switched the speakers or room location, so I can't be sure. The Yamaha channel seems harsher on pink noise, as well as on music. My ancient tube Dyna amps also never gave offense. Since your speakers are fairly close to the ceiling (plaster?) you could try putting a bit of absorption on the ceiling just at the point the tweeter sound would bounce off the ceiling and to you on the couch (use the mirror test). That's the equivalent of someone putting a rug where a floor standing speaker's sound would bounce off the floor.
  7. Welcome to the community! I have no experience with those particular models, but sometimes horn loaded tweeters are perceived as too bright. I'd hate to see you open the boxes if it would interfere with your ability to return them (or sell them). Someone with more technical knowledge than I have will no doubt advise you as to whether your intention to pad down the tweeter will cause any problems with that particular crossover, and whether it would be better to use an L pad or a T pad, or whatever, BUT I'd try something less invasive to start with. Here are links you may find interesting, but I do not in any way vouch for them! https://www.amazon.com/Parts-Express/b/ref=w_bl_hsx_s_ce_web_2530100011?ie=UTF8&node=2530100011&field-lbr_brands_browse-bin=Parts+Express http://www.electronics-tutorials.ws/attenuators/t-pad-attenuator.html Over brightness or shoutieness is sometimes said of horn tweeters by Klipsch, JBL, EV, all the way back to Altec, University and Tannoy. I have never found this to be a problem (except with cheap off-brands). As to those who said it is a known problem with those speakers -- maybe -- but, there are leagues of horn haters online. Sometimes the problem is one of those mentioned below: One of balance of bass and treble, especially when replacing a speaker with rolled off or veiling treble with one with flat or more energetic treble. Can you turn up the gain on the Cambridge Soundworks cube subwoofer, or put it against a wall, or put it in a corner? Have you done a subwoofer crawl? What were your old speakers? Distortion or imbalance in certain recordings that is revealed by the new speakers, but masked by the old ones. Have you tried a wide variety of recordings? Blu-rays made from recent movies are usually quite good, as are most SACDs and DVD-As. Beware CDs from the early days of the medium, or those that are mastered into hash and knife in the ear (see Chris-A's posts on home remastering to correct for poorly mastered recordings). Some Yamahas (and some others) are rather bright, and the Klipsches may be revealing that. Good Luck!
  8. RF7 Tweeters crackling

    What kind of tweeters? I've always wondered whether tweeters are "all or none," or can, sometimes, just show a little distortion when damaged. The one I blew years ago (a K77, blown by a test signal turned up more than I thought it was) just immediately stopped making sound, period. Sometimes a tweeter sounds distorted on some program material, and not on other recordings. Try a wide variety of recordings. Can someone who knows about these things answer? Thanks.
  9. "The Vietnam War" on PBS

    As I remember Arthur Schlesinger's little paperback on the subject (read c.1965), the Allies originally got into Vietnam for the natural rubber (during WWII). Ho Chi Mhin was fighting against the Japanese. Later, Truman declined criticizing the French in "Indochina", because he wanted the French to accept the Marshall Plan. As the Burns series made clear last night, Eisenhower believed in the domino theory. Kennedy, too, was under the thrall of the Cold War.
  10. "The Vietnam War" on PBS

    Excellent! Interesting that the first 3 quotes from JFK (during the Eisenhower administration) counseled caution in getting involved, and the 4th one seemed to say, something like, "We helped build this mess, so we can't just leave." Toward the end of his administration, in the interview with Cronkite (coming soon on the series, I'm sure) he seemed to show frustration with the South ... "In the last analysis, it's their war." People will never stop debating whether he was considering withdrawing the advisors and arms. "Truth is the first casualty."
  11. Klipschorns. See Chris A's post. Plant some bushes, trees outside the bay window at various distances, and park the car somewhere else?? If you can't park it somewhere else, build a rustic country garage to match the house, and plant bushes in front of it. Think of the outside world visible from the bay window as a painting ... paint away. The tin ceiling may actually contribute some nice, complex reverberation. Give it a try. You are fortunate to have a high ceiling, and that the livest part is in the back. High ceilings are good with Khorns. Your room proportions may actually fit within Bolt's polygon, a good thing. Few do. Since your room is long and wide and high enough, I can see the future .... a projector on a high rear shelf ... a retractable acoustically transparent screen (Seymour) that comes down in front of the bay window , extending from Khorn to Khorn ... a small but excellent center speaker mounted just above the window, in the center, of course ... since you wouldn't want to waste your projection bulb (even if rated at 3,000 hours) on the TV news or Jeopardy, a TV that rises up out of the floor ...
  12. Welcome to the forum! How big is your room? How close will you be to the speakers? Do you like to listen loud, medium, or soft? Will you have a powered subwoofer to do the heavy lifting? Apparently (if the review I looked at is correct), this unit has tone controls. That is a good thing, in my mind. But, if you are the type of person that likes to turn up both the bass and the volume to high levels, you might, conceivably, have a clipping problem. To make a significant difference (3 dB) you would have to get an amp of double the power (120 w.p.c., RMS, 8 ohms, 20 to 20K Hz, honestly rated). These speakers have a rated sensitivity of 96 dB at 2.83 V (1 W into 8 Ohms) at 1 meter, but that is at 1 meter (as is the standard rating distance). A common mistake is to think, "96 dB is plenty for me, and that only takes 1 watt!". But, that only holds true if the speakers are just 1 meter away, which they may be on a desk top. Inside (outside, or anechoic, don't count for what we're doing) in a room of "average" acoustical brightness, we lose 3 dB for each doubling of distance, so, if you are 4 meters away, you may need 4 watts for 96 dB, or 1 watt for only 90 dB (it comes to the same thing). But, that's only 96 dB at 4 watts. Moving through the "double the wattage for every 3 dB of increase," we get: At 4 Meters: 4 watts 96 dB 8 watts 99 dB 16 watts 102 dB 32 watts 105 dB ... reference level for instantaneous peaks for THX through main speakers (not the sub). You might have about a 3 dB safety margin with the Yamaha. See below. 64 watts 108 dB But, it is not quite that simple. 1) How long are these ("instantaneous") peaks? An amp that could easily handle a 2 millisecond peak might see a 200 millisecond peak as challenging, and a broad, 2 second peak as more like a sustained sound. 2) THX themselves measured 108 dB peaks for The Empire Strikes Back, way back in 1980 (not counting what went through the subwoofers). Paul W. Klipsch, who used to record live orchestras, said, "You need 115 dB peaks at your ears to capture the blood stirring climaxes of a symphony orchestra." These were probably fairly "instantaneous" peaks. Coming back to Earth, the chart above indicates that in an average room, you would need 32 watts (without bass boost). The 96 dB @ 2.83 V @ 1 Meter sensitivity is very close to the sensitivity of the Heresy. An old Dope from Hope paper (Vol 16, No. 1, January 1977) rates the Heresy as needing 45 watts to produce 105 dB, average level, at 8 Ohms, midband, in a typical listening room of 3,000 cu. ft. R =200. So, since both 45 watts and 32 watts are below your 60 watts RMS power per channel, you would probably be O.K. with the Yamaha -- but no guarantees. Good luck!
  13. 2018 Film Screening

    There were different Sensurround set-ups for different theaters, depending on available space, and whether the theater was willing to have seats removed, etc. All Sensurround speakers were horn loaded Cerwin-Vegas, I think. Both Earthquake and Midway seemed to have quite a bit of low bass that I could feel -- I'd say 30 Hz and up -- but not more than we can get in our home theater with some modern movies with a lot of LFE, or even with Crystal Clear's recording of Fanfare For The Common Man (timpani, big bass drum, etc.). Even back then (c. 1974/1976), when someone gave me a recording of an atom bomb blast, I found that it could shake the floor at home (with JBLs) just as much as could Sensurround move the theater floors. Incredibly, the 6 mag channel, 70mm version of Ben-Hur(1959) beat them all in shaking the concrete floor, with the thunder and suggestion of an earthquake during the crucifixion. FWIW, when I experienced the 1989 Loma Prieta earthquake from 60 miles away in San Francisco, it went through phases 1) A sound like a railroad train roaring toward me from a distance (buildings rattling that were closer and closer to me?) with only a little sound that could be felt 2) The floor rolling, not too bad, with a low rumble 3) A sudden jerk that threw me against the wall, and kept shaking (really more like rolling) with great intensity. It seemed to go on, and on. With this, there was a very deep roar (10 Hz to 40 Hz???) that was felt, with the upper part heard. The total bass SPL was not very loud, though, but the building really rolled, and it made noise, including the expanded metal in the walls screeching like the Bernard Herrmann violin glissandi in Psycho, which blended nicely with the screams of the AOA upstairs. For the most part, the bass sound was secondary to the rolling. Perhaps the movie pepole emphasize sound, because they don't have the option of rolling the theater -- yet. Rolling is a good way to describe it. A friend was driving down the peninsula and said the roadway was rolling like ocean waves, which is exactly how Mark Twain desctibed the 1906 San Francisco earthquake. But they were both accomplished liars, so I can't be sure.
  14. I have IIs for surround speakers, and like them. Haven't heard the IIIs. Not all Is are the same. Borrowed a set (all drivers working) ~~30 years ago that was very dull sounding. I've heard several Is that were tangy and cortex tingling. I guess of the Is v.s. the IIs, the IIs sound more neutral and natural, and the Is more jazzy and piquant -- providing you don't get a dull one. The dull ones I borrowed may have been an early version, intended to be a center speaker back when PWK first started providing "Wide Stage Stereo" in about 1959???
  15. Just out of curiosity, what does the code say about locating or burying satellite internet wire?
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