• RE: upgrade OPT for TU-8200 - Oface 06:52:41 03/04/16 (7)
  In Reply to: RE: upgrade OPT for TU-8200 posted by vkung on February 22, 2016 at 19:51:31

  Ahhh yes, saw your post on the head-fi forum. I have been enjoying my 8200DX for about 2 months now. I really enjoyed the build and the eventual sound. I am about to start looking for tubes to roll.

  How much are these opts? Wished they were offered when I ordered my 8200DX a couple of months ago. Because the only "complaint" that I've had is the great sounding results, but the bass is a wee bit shy/lean. I was owning it up to the stock EH el34's and stock 12ua7's. I now see the much larger opts available, and I am thinking that will help the bass.

  BTW, my speakers are Altec 19's, and I've used them with sets and other PP based amps ( el84,6v6,etc...)and did not have the the lean bass issue.

  Thanks Victor!
  

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  Edits: 03/04/16

  • RE: upgrade OPT for TU-8200 - vkung 11:19:28 03/04/16 (6)
    In Reply to: RE: upgrade OPT for TU-8200 posted by Oface on March 04, 2016 at 06:52:41

    For sure, the upgrade OPT will give your more bass. I am waiting Lundahl' s smaller OPT for TU-8200. Once I have the result and will share in here. If you change the tube set to Psvane KT88 and 12AU7 (MKII), you will have better result.
    
    
    

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    • RE: upgrade OPT for TU-8200 - Oface 12:27:31 03/04/16 (5)
      In Reply to: RE: upgrade OPT for TU-8200 posted by vkung on March 04, 2016 at 11:19:28

      I was thinking either Gold Lion KT66's or Kt88's. Reading about some of the past psvane tubes having issues bothers me a bit. But thanks for the recommendation.
      
      So the when will the larger Antene OPT's will be available for purchase, and what will be the price for the Antene's?
      
      Thanks Victor.
      

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      • RE: upgrade OPT for TU-8200 - cabelok 23:01:35 03/21/16 (0)
        In Reply to: RE: upgrade OPT for TU-8200 posted by Oface on March 04, 2016 at 11:27:31

        I tried KT88's (new JJ's) the amp ran very hot (the bass was better). I stuck a big heat sink with heat transfer tape but opted to send the tubes back as it didn't seem to help much - I don't like very hot tube amps. The 8200 likes 6L6GC's, runs slightly warm, never hot. I opted to go the active subwoofer route (x2) with very good results. The bass improves over time, so be patient. I'm very happy with it. The IC's made a big difference as well - DIY, thin solid silver with minimalist RCA's. Good power cords also tightened the bass. It depends what you listen to and what your goal is.
        

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      • RE: upgrade OPT for TU-8200 - vkung 14:58:12 03/04/16 (3)
        In Reply to: RE: upgrade OPT for TU-8200 posted by Oface on March 04, 2016 at 12:27:31

        If you buy your tube from a reliable source, you should be ok.
        For the OPT, I am waiting the smaller Lundahl OPT. The price is more or less the same.
        
        
        

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        • Been searching, but.... - Oface 04:22:33 03/07/16 (2)
          In Reply to: RE: upgrade OPT for TU-8200 posted by vkung on March 04, 2016 at 14:58:12

          I have a friend that is letting me borrow a pair of kt90's and 6550's to compare against the KT88's I bought. He also said he has some kt120's he'll let me borrow.
          
          
          Can I use the kt120 with the 8200?
          
          Thanks
          
          

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          • RE: Been searching, but.... - vkung 07:30:33 03/07/16 (1)
            In Reply to: RE: Been searching, but.... posted by Oface on March 07, 2016 at 04:22:33

            no, you cannot use kt120. kt120 requires higher current. you can use el34, 6l6gc, 6550c, kt88, k90
            

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            • Thanks Vic! (nt) - Oface 08:25:39 03/07/16 (0)
              In Reply to: RE: Been searching, but.... posted by vkung on March 07, 2016 at 07:30:33

              .
              

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