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As posters to this thread may know, I'm reviewing the DHT module. I've got a clear take on the EH gold-grid 2A3 now. Those who've already done the deed and know the stock-tube sound: what other tubes have you tried and which of those made the biggest difference in terms of altering the flavour and shifting things in a different direction (regardless of whether your taste or not)? I'm interesting in trying out a few others but have to buy a set each so want/need to be prudent. I'm primarily interested in *big* changes just to see how much wiggle room there is in the general presentation. I'm less interested to go from French vanilla to regular vanilla if you get the meaning. Chocolate or strawberry would be more like it
In between the stock tubes and EML 2A3 Mesh Plate would be the Genelex Gold Lion PX300B. Not sure if I would call it chocolate or strawberry...but it is definitely different from the stock tubes.George
George, Can you add a little more description of the Gold Lions? Also, would you mind commenting on noise floor among the tubes you've mentioned? Thank you!David
All,I don't have experience with online tube shops outside North America, but insideNorth America here are some options:https://tubedepot.com/t/tubes/power-tubes/300b-2a3-6a3 (EH, Gold Lion, JJ, KR Audio, some NOS)http://www.thetubestore.com/Tubes/300B-Tube-Types (EH, JJ, Shuguang, Shuguang Treasure)http://tubesusa.com/ELtubes.html (Emission Labs)Grant Fidelity (Canada) is the distributor for the Chinese Psvane and Shuguang Treasure tubes:http://psvanetube.com/wordpress/http://psvanetube.com/wordpress/purchase/shuguang-treasure-series-vacuum-tubes/More Exotic 300Bs:http://www.store.diyhifisupply.com/300BI have to admit that I'm curious about these:andBut not cheap at $775/pair and $995/pair, I'm not ready to jump just yet. And $2500/pair for the Takatsuki 300Bis really getting up there, but if they sound amazing I would have to consider them:One day I hope to give them a try. As for NOS, I've mainly been looking on ebay and scored some 45s and CX301A's at a good price. Western Electricsare rare and pricey, but I'd love to hear those as well as some RCA 2A3s This is only the beginning of the adventure for me. Once I am more caught up, I'll have more time to play. For now, I loving the EML 2A3 Mesh Plate and Svetlana SV811-10s (two different flavors), and the stock EH2A3 Gold Grid'sare quite the "sleeper" tube in this circuit and I still like using them as well.Vinnie
All,I have to admit that I'm curious about these:andBut not cheap at $775/pair and $995/pair, I'm not ready to jump just yet. For now, I loving the EML 2A3 Mesh Plate and Svetlana SV811-10s (two different flavors), and the stock EH2A3 Gold Grid'sare quite the "sleeper" tube in this circuit and I still like using them as well.Vinnie
BTW - I received the DHT upgrade, and really wanted to install it over the weekend. But between my wife's plans (repainting and rebuilding the garage), and a David Crosby concert, I didn't get the time. I should have the garage almost done this week, so I'm hoping to free up the time.
We're going to get a lot of info from the "tube train" i.e. the mailing list that was set up to send DHTs to various LIO owners. That will help cement my decision on whether or not to fork over extra dollars for big buck tubes.BTW, on Vinnie's links, does one just have to search for "DHT" or "directly heated triode"? Does one have to know the specific designation of the tube to search for it? I'm pretty familiar with guitar amp tubes but I don't know the nomenclature for DHTs beyond what people have mentioned in this thread.
It's no exaggeration to write that compared to Nagra, Vinnie Rossi the brand is a flyweight. Swat. It's an upstart barely out of its diapers. In my exotic Olympics however, his Lio DHT PRE took the gold, my beloved Nagra Jazz the bronze. The silver remained out of reach for the Swiss given the size of Lio's lead. 12Awhatever7 triodes of the small-signal persuasion just won't reach this plateau regardless of design pedigree. Vinnie called it. Quite the sobering realization. Given that the Lio platform had previously nabbed one of our exceedingly rare Lunar Eclipse Awards, it had already maxed out our special recognition scheme as well. Time to pause and let it all sink in.
As reviewed, the Lio DAC/headfi/pre 3-in-one DHT is a game but more importantly gestalt changer.
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