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Pete B

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About Pete B

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    Connecticut, NE USA
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    Interest in Audio for over 30 years, got started early
    Electrical Engineer (see my web site link)

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  1. The original thread for this is here at AudioKarma with impressive pictures of the new place: https://audiokarma.org/forums/index.php?threads/♫-saturday-march-21-2020♫-new-england-winter-frankenfest-in-west-boylston-ma-at-the-masonic-church.898711/ It’s time to get psyched up for will promise to be our must epic event yet! Thanks to Bill aka SpikeDart who found us the site and is our local liaison. We are renting the Masonic Lodge - which is a converted church - This location will only be a few minutes further for folks driving from the masspike. Address: 12 Church Street West Boylston, MA 01583 We have the facility all day so the doors will be open at 10 AM for setup and we’ll wrap it all up by 5PM. Obviously, we’ll be asking people to stay and clean up any mess - we want to be invited back! This is a much larger an nicer space than what we’ve been using most recently in Sutton and it has a variety of areas that can be used for selling and auditioning systems. Admission will be once again be a paltry $5 each - if you’re bringing along disinterested people they’ll be free - but anything you can contribute will certainly be appreciated. You should enter through the front door and pay your admission fee after which you can use the side doors to bring in treasures for sale in the lower level function room. T shirts and sweatshirt orders will be available for pick up just inside the front door as well. There is parking in the side lot, on the street and in the field behind the building. The upper level auditorium area will be used for auditioning systems. There is also a medium sized and smaller side room that can be used for auditioning systems. The lower level will be used for selling and there’s a kitchen area. There are a limited number of tables - if you partake of them only take one - if you can you should bring your own as well. There are a limited number of power outlets - if you need power for a system bring extra extension cords and power strips. Everyone should bring some appropriate snacks/drinks. Alcohol should be OK in moderation - but this hasn’t been an issue in the past and most of us are driving a fair distance so it’s best to watch your consumption. Of course no smoking inside the facility. I will post a Barter Town thread in about a week and link it here.
  2. The early versions of the Paradigm Studio 100 had a pair of 8.5" woofers port tuned to a very low 20 Hz. They have tremendous power handling around 20 Hz but could probably use a little boost there to get the most out of them. There was an excellent review many years ago in Audio magazine. Here is another review: https://www.stereophile.com/content/paradigm-reference-studio100-v2-loudspeaker-measurements
  3. Pete B

    AR MGC-1

    I remember seeing that Peerless but it might have been very early production.
  4. Pete B

    AR MGC-1

    The MGC-2 has a 12" woofer and 6" lower mid! Do you know if the 4" mid was the same Peerless (KO40MRF) driver used in the MGC-1? https://reconingspeakers.com/2011/11/07/peerless-k040-mrf-midrange-repair/
  5. @Jim Pearce I have a working pair for sale, do you still need them?
  6. Pete B

    AR MGC-1

    I have a vague memory of seeing it could have been in the library here or perhaps there was a patent?
  7. That makes sense to add the level controls. It is interesting how different these are from the AR-11 for example that has 10 uF in the tweeter circuit and a bigger inductor on the woofer. The midrange differences are expected since a different mid driver is used.
  8. Pete B

    AR MGC-1

    I'm not sure if I've ever seen the XO schematic. You might ask Ken Kantor, or some of the experts on here. Please post it if you find it.
  9. Thanks very much!ACOUSTIC SUSPENSION_Audio-1955-Jul.pdf I used pdfSam (free program) to chop out the specific article.
  10. It would be interesting to compare the 58s and 91 crossover schematics in this thread if you have them handy to post. I'm sure that they're around CSP somewhere. Nice job on the rebuild and XO swap by the way!
  11. Pete B

    AR MGC-1

    Anyone have the Magic Speaker .pdf that they could post here? The link to Ken's download is dead.
  12. I always have trouble finding this historic article covering the design behind the AR-1 woofer that started it all. I thought that there was a .pdf but have been unable to find it, here's a link to it in the library here on CSP: http://www.classicspeakerpages.net/library/acoustic_research/special_sections/additional_ar_documents/commercial_acoustic_suspens/commercial_acoustic_suspens.html A few more links with background: Some history at the AES: http://www.aes.org/aeshc/docs/record.../villchur.html Ed Villchur's patent covering his new invention, filed March 15, 1954: http://www.google.com/patents/US2775309 And another link here at CSP on a very fine AR-1 sample: http://www.classicspeakerpages.net/IP.Board/index.php?/topic/8511-historic-ar-1/page/2/
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