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Forum: Discrete LP Formats (CD-4,UD-4)

Land of the Quadradisc

  1.   Sticky Threads  

  2. Exclamation Sticky Thread Sticky: Lou Dorren: A new CD-4 Demodulator!!! [ARCHIVE]

    Started by loudorren, 12-29-2007 06:44 AM
    49 Pages
    1 2 3 4 5 ... 49
    • Replies: 1,217
    • Views: 308,819
    09-20-2017, 05:11 AM Go to last post
  3. Post Sticky Thread Sticky: Lou Dorren: 2007 CD-4 Papers (5)

    Started by JonUrban, 02-10-2017 01:33 AM
    • Replies: 3
    • Views: 1,167
    02-17-2017, 10:52 PM Go to last post
  4. Sticky Thread Sticky: Official QQ "What's your Go-To Surround Demo Quality CD-4 LP"?

    Started by JonUrban, 07-19-2010 09:59 PM
    2 Pages
    1 2
    • Replies: 32
    • Views: 12,728
    03-14-2014, 11:14 PM Go to last post
  5.   Normal Threads  

  1. Marantz 400 vs. 400B

    Started by n8nagel, 11-11-2017 06:32 PM
    • Replies: 7
    • Views: 465
    12-07-2017, 02:39 AM Go to last post
  2. What's the Latest DISCRETE Quad LP Added to Your Pile? CD-4, UD-4

    Started by Quad Linda, 09-08-2011 05:51 PM
    30 Pages
    1 2 3 4 5 ... 30
    • Replies: 744
    • Views: 113,246
    12-06-2017, 06:49 AM Go to last post
  3. Here's an oddity! Japan CD-4 - USA GRT Q8

    Started by Q-Eight, 12-03-2017 08:27 AM
    • Replies: 1
    • Views: 134
    12-03-2017, 10:40 AM Go to last post
    • Replies: 18
    • Views: 1,485
    11-30-2017, 07:35 AM Go to last post
  4. CD-4 Discrete original to digital

    Started by Mark Penn, 10-15-2017 09:30 PM
    • Replies: 6
    • Views: 506
    10-17-2017, 05:06 AM Go to last post
  5. Sandpaper CD-4

    Started by Xdevo1973, 09-29-2017 01:38 AM
    • Replies: 10
    • Views: 749
    10-14-2017, 09:56 PM Go to last post
  6. Involve CD4....Is there any life in it????

    Started by chucky3042, 08-16-2015 01:14 PM
    14 Pages
    1 2 3 4 5 ... 14
    • Replies: 344
    • Views: 54,914
    09-24-2017, 03:22 AM Go to last post
    • Replies: 5
    • Views: 527
    09-11-2017, 11:30 PM Go to last post
  7. Technics Semiconductor cartridges

    Started by rolvkarsten, 07-29-2009 12:42 AM
    • Replies: 7
    • Views: 4,580
    09-01-2017, 05:07 PM Go to last post
  8. Some cd-4 questions for the experts.

    Started by quattro64, 06-07-2017 05:07 PM
    • Replies: 10
    • Views: 970
    09-01-2017, 12:49 AM Go to last post
  9. CD-4 Signal drop

    Started by CharlesLovesQuad, 08-05-2017 08:45 PM
    • Replies: 2
    • Views: 331
    08-08-2017, 02:38 AM Go to last post
  10. Victor CD4-10 "Studio" Mods

    Started by jwb474, 05-30-2016 01:10 PM
    2 Pages
    1 2
    • Replies: 31
    • Views: 4,969
    07-24-2017, 01:13 AM Go to last post
  11. Exclamation Lou Dorren on his CD-4 45rpm record, and FM Quadraplex

    Started by loudorren, 08-30-2007 02:32 AM
    5 Pages
    1 2 3 4 5
    • Replies: 123
    • Views: 53,660
    07-15-2017, 11:33 PM Go to last post
  12. Sansuis for CD4..Good, Bad, or Ugly?

    Started by John Svensson, 07-06-2017 11:46 AM
    • Replies: 7
    • Views: 571
    07-10-2017, 06:37 PM Go to last post
  13. Hey CD-4 cartridge experts!

    Started by bangsezmax, 04-12-2013 07:18 PM
    • Replies: 19
    • Views: 4,812
    07-01-2017, 10:35 PM Go to last post
  14. CD4-1000 - where are the other 48 units?

    Started by vinylguy4, 10-10-2009 04:57 AM
    2 Pages
    1 2
    • Replies: 26
    • Views: 3,250
    06-29-2017, 10:58 AM Go to last post
  15. Sansui QRX-6001-CD-4 problems

    Started by jukeboxexpress, 08-17-2010 07:01 AM
    • Replies: 22
    • Views: 4,550
    05-09-2017, 03:04 PM Go to last post
  16. Lafayette LR-4000, JVC VL-5 CD-4 and SQ setup

    Started by jsetche, 04-28-2017 04:33 PM
    • Replies: 7
    • Views: 1,007
    05-05-2017, 10:41 PM Go to last post
  17. Best Quadradisc yet.

    Started by Xdevo1973, 04-30-2017 04:04 PM
    • Replies: 3
    • Views: 697
    05-01-2017, 07:31 PM Go to last post
  18. AT440mlb (amazing) Thank you Quadfather

    Started by Grajay, 03-12-2017 05:46 PM
    • Replies: 5
    • Views: 956
    03-29-2017, 07:29 AM Go to last post
  19. AT440MLb discontinued?

    Started by n8nagel, 03-15-2017 07:09 AM
    • Replies: 19
    • Views: 2,355
    03-25-2017, 09:53 AM Go to last post
  20. Is there an inexpensive CD-4 cart out there?

    Started by ChopperCharles, 12-30-2014 05:33 PM
    2 Pages
    1 2
    • Replies: 34
    • Views: 6,783
    03-21-2017, 03:36 PM Go to last post

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