Welcome! Need support, you got it. Or share your ideas and experiences.
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.
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.
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?
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.
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.
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?
no, you cannot use kt120. kt120 requires higher current. you can use el34, 6l6gc, 6550c, kt88, k90
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