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genek

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About genek

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  • Birthday 07/31/1953

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  1. AR1 Rear panel jumpering?

    Is the white squiggle pattern just a different color region of fabric, or is it something like paint that was drizzled onto the dark fabric? If it's the latter, you may be able to recolor the fabric. If the former, you're probably SOL for restoring it.
  2. AR1 Rear panel jumpering?

    That being the case, your cabinet is in no danger of coming apart, and your only real concern is whether the back is loose and there's an air leak that can adversely affect woofer performance. Easiest way to test for that is to cover the back seam with some blue painter's tape (get the plastic stuff from 3M, it's nonporous) and see if that makes any difference in the sound. If it does, just push in some non-hardening window caulk that can easily be removed (grey ropey stuff that comes in rolls); it it doesn't, you can leave it be. WRT the grille, try brushing one of those mildew spots with a dry toothbrush to see if there's still color underneath. One of the unfortunate things that mildew does is eat organic dyes, so there's a good chance that the fabric has been permanently discolored.
  3. AR1 Rear panel jumpering?

    Considering the provenance of the piece, I'd fill the gap with something non-permanent that won't have the potential to reduce collector value. Non-hardening window caulk, or maybe paraffin. Photos of the grills will help with the best recommendation for treatment.
  4. AR1 Rear panel jumpering?

    Talk about provenance. Sounds like a real museum piece. Can you shoot a bunch of pictures so we can upload them to the library here?
  5. AR1 Rear panel jumpering?

    The Audio League review of the AR-1 was published in Nov of 1956, and presumably they had the use of one for some time prior to its release. So perhaps this was an early or pre-production unit that AR loaned to the Audio League for testing in '54 or '55.
  6. AR1 Rear panel jumpering?

    Here you go.
  7. AR-1 and Janzen ES tweeter array

    They should if you set the controls right.
  8. 1978 Reviews of AR 9 (renamed thread)

    The HiVi probably does a lot to "modernize" classic ARs, making the response "flatter" at the high end and reducing the dispersion to make the sound more narrowly focused. So it's not surprising that listeners who prefer the sound of the AR9 and later speakers over the classic models would find it an improvement.
  9. AR-1 and Janzen ES tweeter array

    The Janszen tweeter is just wired in parallel with the speaker.
  10. AR-6 Restoration

    My guess is that whoever put the Peerless woofers in added those components to try and compensate for the difference between them and the original AR woofers. If I'm right, removing them will probably make everything you don't like about the way the speakers sound now even worse. About the muffled highs, have you checked to make sure there's actually sound coming from the tweeters?
  11. AR-6 Restoration

    You need to replace the woofers with real AR units. Refoamed 8" AR woofers typically sell for $60-$80 for a pair on eBay. The Sprague Compulytic caps are probably still ok.
  12. Derived from higher resolution. Although sloppy production practices certainly don't help. I'm referring to people who are ripping their own FLACs from LPs and consider the sound better than what they would get by buying commercial CDs of the same titles. It sounds logical to me that an analog LP from a 192kHz digital master could potentially be a better source for a lossless FLAC than a 44kHz digital CD, but whether we could hear the difference is another matter. I presume that commercially available FLACs are being made from hi-res digital masters, even if the original studio recordings were analog. I don't see DG or Philips sending the original analog masters from their studio archives when someone licenses their titles for digital delivery.
  13. CD is PCM and technically lossless. But PCM masters are made at much higher sampling rates, and in order to fit a digital master onto a CD, it's downsampled. So the files on the CD are lossless, but unless the master was originally recorded using CD specs, the content is "lossy" (or maybe a better word is "compromised") compared to the original master. This is why there are digital formats like SACD or DVD-A that are higher quality audio than CD. And why some people think a FLAC rip of an LP is better than a commercial CD of the same title. WRT backup, I have two 12TB systems that are synched together. It's kind of like RAID, except that the mirrored drives are in separate computers. If one goes down there's another one still running while I get it back online.
  14. "Lossless" means that no information is being thrown away for the sake of file size. CD, like MP3, is not a lossless format. Information is deleted for the sake of compression. Higher levels of compression delete more information. So a lower bitrate translates to lower audio quality (though whether you can actually hear it is another matter). In a FLAC file, no information is deleted for the sake of compression. the bitrate is a function of how "dense" the data is and how much compression has been applied. The same level of compression applied to a low density recording will result in a FLAC with a lower bitrate. Higher levels of compression don't reduce audio quality, they just mean that your playback system has to work harder to decompress them. So the bitrate of a FLAC file is meaningless as far as audio quality.
  15. I've downsized considerably over the past 10 years. Both the RtR tape decks, one of the turntables and one of the two cassette decks are gone, along with the outboard NR boxes that went with the RtRs and one of the turntables, a couple of pairs of smaller AR speakers and one of two dbx dynamic range expanders. Have a dbx switching box and another impulse NR box in a closet no longer being used. The active system in my living room is a 4K TV, 90s Sherwood 5.1 pre/power pair, five AR speakers, AR turntable, SAE5000 impulse noise remover, dbx 3bx expander and 4K Roku box that streams audio and video from a 12TB Plex Media Server PC. I still have one cassette deck connected, but haven't used it in a long time. I've been digitizing my OOP LPs to FLACs for streaming over the Roku. Can't detect any audible difference, but these aren't exactly MFSL recordings.
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