TRIODE LAB 2A3S Triode SET Power Amp Polestar Green Metallic
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Condition | NEW |
Payment methods | |
Ships from | Scarborough, ON, M1P3E4 |
Ships to | Worldwide |
Package dimensions | 20.0" × 14.0" × 14.0" (30.0 lbs.) |
Shipping carriers | USPS or FedEx |
Shipping cost | Free |
Average | Research Pricing |
What you are looking is one of a kind 2A3S, you know what it is if you are following our page. On this very special 2A3S-MK2 : This is the last one made with James Corporation's transformers because they just stopped doing HIFI transformers, like Tango / Tamura. And this last batch of James transformers are better made than their historical production, its highs and midranges both measured very smooth and silky. And this last batch of output transformers are housed in a bigger sized / potted cans. What makes this unit more special, we gave it a full-out upgrade on the design of it to pay our respects to James (we have used/partner with them for over 20 years), and we feel the pain because high end tube amps became a very narrow market, as most audiophile doesn't understand the importance of quality transformers and subsequently buys the lower grade mass produced alternatives instead. Now, the preamp section is totally separated, and with one 6SN7 to handle the input/gain stage, and another seperate 6SN7 to be the driver for both channel - that's right. They don't have to be matched now - because the first 6SN7 is driving the second 6SN7, which is different than previously we use one 6SN7 to handle one channel and have to be matched. Further more, each 2A3 now is individually heated/fed/run on their own circuit board for their optimized performance and cooling. Totally separated to both the preamp section, and the power supply / rectify section. For the power supply section, its not just another straight forward design. It have our latest hybrid rectifier design, which uses both rectifier tubes and diodes the same time to get the best out of both world. This enhance the consistency, reliability, and durability, also to minimum the start up rush. When the rectify tube gets old, this advance design also able to accurately and safely to provide the perfect amount of voltage to feed the circuitry. Combine the best of both world of sound, and functions. SIMPLE SPECS: Input Sens - 0.77V 4.5W Nominal / Max 4.8W @ Ohms Rectify tube choices : 5R4//5U4//5V4//5T4//5Z4//5Y3 Parts highlights : Mundorf Germany Silver in Oil Coupling Caps, CMC Gold RCA Jacks, Furutech Gold IEC, CMC USA Gold Speaker Binding posts, Hammonds Canada Power Transformer (100-240V), Premium grade resistors/ecaps...etc. For the lucky owner of this 2A3S-EVO (Since this is not exactly a MK2, and we don't know when we will use this exact topology down the road too, we will just call this unit machine the 2A3S-EVO). A new set of tubes will be included, which consist two NOS Realistic Gold Pins 6SN7, a NOS Marconi-HItachi 5U4, and a pair of new Shuguang 2A3C. Shipping is included too.
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