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Don Richard

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  1. Wire upgrde

    For one thing it likely means the stranded wire will have less skin effect than the solid, thus better for audio use.
  2. Wire upgrde

    Panduit makes forked terminal lugs, crimp type, that will take #10 and #12 gage wire and fit #6 screws on the Jones type blocks used by Klipsch. Other brands may fit the screws and the wire, but the forks are too wide to fit between the barriers.
  3. OK to split Pre-Out?

    You would have to have a tube preamp with a high output impedance hooked to a solid state amplifier with a very low input impedance to get problems. Most solid state preamps have an output impedance of 200 ohms or less, most solid state amplifiers have an input impedance of 20,000 ohms or greater. Tube amplifiers usually have an input impedance over 100,000 ohms. As long as the amplifier has 10X the impedance of the preamp or more, it's good.
  4. The Latest in High End Audio

    Wilson used to make their enclosures out of a high density material similar to concrete. If this device is made of the same stuff it could weigh 500-600 pounds. Maybe they are selling these by the pound or something. That might explain the price.
  5. The best part - they only cost $685,000. When I look at these the word that comes to mind is "monstrosity". When I look at the price the word that come to mind is "ripoff". http://www.theabsolutesound.com/articles/first-listen-to-the-new-wilson-audio-modular-monitor-wamm/
  6. imaging ?

    Yeah, when I had LaScalas I liked them because I could move them around the room and locate them where they sounded best.
  7. imaging ?

    I am unfamiliar with the 396, but I would say if they are time aligned it should be possible to get them to 3D image with proper placement.
  8. imaging ?

    Loudspeaker placement and/or acoustic treatments are necessary to get consistent 3D imaging. Time aligned speakers seem to help greatly, along with source material that has been recorded properly and/or mixed properly. The easiest way to get 3D sound is to use mini-monitor type speakers in a nearfield setup in a 6 or 7 foot equilateral triangle , away from the walls, facing forward with no toe-in. What I have found to be unnecessary are tube amplifiers, analog sources or fancy cables. I base my opinions on extensive experiments using a pair of old Boston Acoustics A150s I have had for over 30 years. I had them hooked to my TV but rarely used them and decided to play around with them. I hooked them up to a Crown XTi 1000 with some old 14 gage "speaker wire" I bought at the same time as the speakers. Source is a $179 OPPO DV 980H player. I played around with all sorts of configurations - speakers elevated, on the floor, with a riser in front, toed in and aimed various ways, against the walls, away from the walls, until I settled on the nearfield configuration described in the previous paragraph. Set up in this manner the 3D imaging is stunning, ranging from good to OMG, depending on the source material. These speakers are a 3 way design using 10 inch woofers, 5 inch midrange, and I inch soft dome tweeter. They are time aligned and have features designed to reduce cabinet diffraction. I have no idea what the crossover points are, sensitivity is 90 dB for 1 watt @1 meter, 80 watt recommended power, 8 ohm load. In the past I had found these speakers to be boomy with one note bass. Pulled 5 feet away from the wall the boom is gone and the imaging really pops. I can move the listening position towards the back wall to increase the bass without getting the boom, but imaging suffers past a certain point. There seems to be a sweet spot where it all comes together with fast, articulate bass that goes fairly deep and spectacular imaging. With about 200 watts "RMS" this little system will play far louder than I want to listen. The total new price for the speakers, amp and CD player is a tad over $1000, including the high end "speaker wire". My theory as to what is happening is when a loudspeaker is located away from any room boundaries it enables a person to locate the source of the sound in 3D space, and in the case of stereo, the stereo image also floats in 3D space. Any ensemble recorded acoustically will have instruments in the rear of the group acoustically delayed by a few milliseconds, which pushes the perceived image of that instrument back. Multitrack recordings achieve the same effect by delaying the channel that the mixdown engineer wants to move rearward by enough milliseconds to move the phantom image toward the back of the group, thus increasing the 3D effect. The reason time aligned speakers seem to image better is that they do not have the time smear from multiple arrivals interfering with the recorded delays that are critical for 3D imaging.
  9. Audio Mags: Impressions

    I think it's like glossolalia in that if one speaks that way they prove they have the true religion, and are thus more likely to buy cable elevators and other worthless high dollar tweaks. This must drive sellers of this stuff to advertise in these magazines, which their target market reads and believes.
  10. Audio Mags: Impressions

    If a person is interested in uninformed opinion, TAS is the magazine of choice
  11. Speakerlab 7?

    I'd love to see the polars on that one.
  12. DSP options for your Pro Klipsch Audio

    But there is a free appetizer or dessert with the reduced DSP distortion from XTi type amplifiers.
  13. DSP options for your Pro Klipsch Audio

    The frequencies, per se, don't have anything to do with it. DSP amplifiers are pro sound devices designed to be run hard. Whenever one drives a loudspeaker of high sensitivity with one of these, the internal DSP isn't using very many bits and, in the case of the Crown XTi there is no way I can find to alter the gain structure of that amplifier to correct this issue. 8 bit audio doesn't sound very pleasing to me. I have recently been experimenting with a pair of old Boston Acoustics A150 floorstanders (90 dB sensitivity) I bought about 30 years ago when I moved to a house that had no corners for the Khorns. I was never impressed with them because they had a rather boxy, boomy, one note bass but I wanted to play around with them a bit before I got rid of them. I hooked them up to one of the XTi 1000s I had. I played around with loudspeaker placement for about a week and ended up with a nearfield system in the middle of a large room, with the speakers on the floor, no toe in, with the listening position about 6 feet back. Wow! This setup will throw a 3D soundfield that sounds absolutely stunning. These speakers, 33 inches high and sitting flat on the floor, create an image taller than the speakers and outside the spacing of the boxes. I can hear the separation of the instruments and vocals in 3D space and it sounds so real that it seems I can get up and walk between the performers. My speaker wire is some old stuff I bought around the same time as the speakers, clear PVC with one wire bare copper, the other tinned. My dog chewed on one of the wires so there is some exposed copper for an inch or so, hooked to a $500 prosound amplifier, and an OPPO player. This setup will play much louder than I want to listen, clean and with no audible distortion. The bass from the 10 inch woofers is fast and articulate, similar to Lascalas except the A150 go a little deeper. At a 90 dB sensitivity they require ~20X the power a Khorn uses, but there's plenty enough available power to hit over 100 dB SPL, C weighting slow at the listening position, 110 dB peaks. Using more DSP bits is the big bonus, I think, as these speakers have never sounded so clean and precise as they do now, nor did this amplifier sound this good when it was driving high sensitivity compression drivers. BTW, I did this late last year and haven't been in a big hurry to hook the Khorns back up. Still listening through the music collection.
  14. Any audio experts in WA?

    Lack of drapes or any other sort of acoustic treatment on the walls is likely causing most of your problems. I am reminded of the times I moved - the stereo was playing while moving out and was the last thing to be moved. Moving into the new digs, the stereo was the first thing brought in and set up so we would have music for the rest of the move-in. In a completely empty room the sound was a mess until the drapes and soft furniture were placed in the room. That, and you might have to run Audessey or another EQ program for home theater after you put in some first reflection absorption.
  15. SpaceX Falcon Heavy Successful Flight

    Out of all the freebie magazines I got when working, NASA Tech Briefs was my favorite. NASA was (is) required to publish all projects and techniques they developed and make them available to the public. I adopted more than a few of these cutting edge technical gems into my own work projects.