Beschreibung
Perfect matched & balanced pair of vintage Telefunken ECC82/12AU7 Audio Tubes - Smooth Plate - Berlin 1965 - Strong NOS Product Summary The Crown Jewelry ECC82 tube is here! If youve been seeking the reference tube sound then look no further. Designed for high end amplifiers and preamplifiers, Telefunken ECC82 tubes provide high level gain with ultra low noise and are unquestionably the vintage tubes sought after and treasured most by audio professionals and enthusiasts. Sound Qualities Like any other Telefunken tubes, these ECC82s are very pleasant to listen to: liquid, euphonic, with a slightly warmer midrange than many other German tubes, which makes your sound experience smooth and non-fatiguing, and all that happens on a unbelievably realistic holographic sound stage, where everything feels bigger, wider and taller. Sound texture can be felt through infinite levels of details, laying on top of each other, both in depth and in width. So your quest for superb sound clarity can end right here. Lastly, it never gets old to say that no other brand is even close to these when it comes to low noise - Telefunken tubes are extremely quiet just as legend has it. Professional Sound Evaluation The pair worked wonderfully and sounded terrific in our professional studio setup for monitoring. - Input: Cambridge Audio CXC V2 dedicated CD transport + Schiit Audio Bifrost 2 Multibit DAC - Amplification: Woo Audio WA7 Fireflies (3rd gen) Balanced Headphone Amplifier - Output: Focal Clear MG Pro open-back headphones Our full tube sound review was written 100% based on the actual listening experience while this pair of tubes were running in the system described above. Professional Tube Testing Both tubes tested Strong NOS (110%+ nominal mutual conductance) on a Mercury 2000 tube tester with the following result (mutual conductance in uMhos): Tube 1: 3,790/3,500Tube 2: 3,790/3,600 Good tubes start at 2,000 and new tubes (incl. NOS/NIB) 3,000, and the Mercury 2000s rated mutual conductance (nominal) for new tubes is 3,000. Test result can also be seen in the pictures. In case you wonder what all these numbers mean to your sound experience, its actually quite straightforward: mutual conductance directly translates to a tubes ability to amplify sound, so the higher the numbers the stronger. Before mutual conductance tests, tubes are checked for shorts, gas and microphonics as well. We do not list any tubes that failed any of these tests. Appearance & Cosmetic condition Beside the fantastic sound signature, we treasure this pair also because the pristine condition of inscriptions on the tubes. The 8-digit Telefunken date codes on the side are visible although fainted on tube 2(right): Tube 1: B8215225 (B = Berlin, 5 = 1965)Tube 2: B02051?2 (B = Berlin, 5 = 1965) And of course the diamond mark on bottom - the symbol of the best sound one can ever find on ECC82s. Packaging This pair of tubes will be packaged in the new Telefunken tube boxes, secured by a hand-made paper ribbon (by courtesy of Soundlumia.) Shipping Policy - Ship worldwide! Flat-rate shipping within the US. - Same business day handling. Orders placed by 2:00PM US Pacific Time on weekdays are posted on the same day, otherwise the next business day. - Combined shipping available - request invoice for total before making payment or receive shipping credit after order ships. - Customers outside the US please pay extra attention: International shipping is through USPS First Class International Mail by default. Its the least expensive option but may take longer than other carriers. If you prefer to use a different carrier please contact us before you buy so we can get you the correct shipping rates before you make payment. Return Policy - Please READ carefully First of all, returns are acceptable as long as you are reasonable. Soundlumia sets extremely high quality standard for the products we deliver. Tubes we sell are guaranteed to work because we run professional tests and sound evaluation before they are approved for listing AND before we ship them to customers. So the defective item case doesnt exist and please do not bother trying - this type of returns will NOT be accepted without proof that tubes do not work and we will open a dispute with eBay. Sound experience is a very subjective thing, and lets be real its not that easy to run into compatibility issues between amps and tubes (so that one wont fly, either.) Please contact us to work things out before submitting return requests claiming item is defective or item not as described. We would really appreciate your respect to the professional work we have done (sourcing, testing & matching tubes, evaluating tube sound, sharing our sound experience with you, packing and shipping) to make these wonderful vintage tubes available to you at reasonable prices. Secondly, if you are a tube roller looking to game the return system, Number One STOP. We have seen it all and we know what youre up to. No tricks here please. Abusive behaviors will be reported to eBay immediately and negative feedback will be left to your account - thats guaranteed. We have already reported several abusers and eBay has ruled in our favor the dispute cases. We are more determined than ever to continue working with eBay to help rid of these unprofessional, unjustified, unkind, unfair and unacceptable abuses that are detrimental to the eBay marketplace, the vintage tubes market and the audiophile community.
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