Telefunken CV2493 = E88CC/01 Mil. Spec Matched Pair - Ulm 1967 - Same code - NOS

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Seller: frankshaohuawang ✉️ (1,109) 100%, Location: Torrance, California, US, Ships to: WORLDWIDE & many other countries, Item: 266736798624 Telefunken CV2493 = E88CC/01 Mil. Spec Matched Pair - Ulm 1967 - Same code - NOS. Important Note - Please READ This item will ship via Soundlumia-sponsored  guaranteed  3-day worldwide delivery at special flat rates ONLY.  US shipping: $15 for ALL states via FedEx Express International shipping: $35 for ALL countries via DHL Express Worldwide  We are committed to safe, expedited and guaranteed delivery of high-value items to serious and committed customers, wherever they are in the world. NO other shipping options are offered for this item. Please refer to Shipping Policy  or contact us for details. Product Summary CV2493, Telefunken, Ulm, Diamond bottom - the combination of these keywords should have your FULL attention by now. The rare military version of E88CC/01, CV2493 is usually seen on Mullard labels, perhaps occasionally on Amperex and almost "never" on Telefunken. But here we are - another Soundlumia Exclusive presentation of one of the rarest tubes on Earth. And we can do better than that: a matched pair of CV2493's with identical Ulm date code in original CV2493 boxes. With extremely low noise to the vanishing point, carefully matched triodes, batch tested rigorously to meet military specs and shock-resistance, these are the tubes that tell the naysayers that Telefunken does mean business when it comes to tube sound and its leadership remains unquestionable.  Sound Qualities  Experienced listeners of Telefunken E88CC tubes will find the following three NEW sound characteristics on CV2493 very appealing: 1. Enhanced midrange presentation. Gone is the "hollowness" (for the lack of a better word to describe the recessed tone on most Telefunken tubes incl. CCa) that some audiophiles find fatiguing after long listening sessions and added is a full and complete presentation with a noticeable forwardness, which feels incredibly warm and intimate. If the Mullard 10M Series proves that the best tubes can be both musical and analytical, this is Telefunken saying the best tubes can be both analytical and musical - yes there IS a difference between the two.  2. The bass on CV2493 cannot be described with any regular vocabulary we have been using in any of our tube sound reviews. This is a different type of bass, and you cannot talk about it without reviewing the important concept of "micro-dynamics" in sound, the precision of effect. You don't just hear the bass punches as an after effect, but you hear how each punch is initiated, how it "drops" from the ceiling to the floor, how the impact with the floor is created, followed by trailing of harmonics in slow motion, and finally how it disappears from the sphere of your music world.  3. For those who enjoy the holographic sound stage of Telefunken tubes, CV2493 offers a fantastic enhanced version as well. It feels much closer and more enveloping than on Telefunken E88CC/E188CC/CCa. You are not one of the audience sitting a few rows back from the stage any more. Rather, you are put in the center of the stage and sound is all around you.  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 WA2 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 Super Strong NOS  (120%+ nominal mutual conductance) on a reliable and recently calibrated Mercury 2000 tube tester with the following result (mutual conductance both in uMhos and in percentage of nominal ): Tube 1: 15,800/15,800(126%/126%) Tube 2: 14,800/14,800(118%/118%) Good tubes start at 7000  and new tubes (incl. NOS/NIB) 12,500 - 13,000 , and the Mercury 2000's rated mutual conductance (nominal) for new CV2493/E88CC tubes is 12,500 . Test result can also be seen in the pictures. In case you wonder what all these numbers mean to your sound experience, it's actually quite straightforward: mutual conductance directly translates to a tube's ability to amplify sound  so the higher the numbers the stronger.  Appearance & cosmetic condition Beside the world-class sound characteristics, we treasure this pair also because of its pristine condition - near 100% of the paint and lettering are well preserved. The identical Ulm factory date code is 100% visible both tubes: U  7117 005 x (U = Ulm, Germany, 7 = 1967)  And of course the diamond mark on bottom - the symbol of the best sound one can ever find on E88CC's. Packaging This pair of tubes will be packaged in the NEW  Telefunken reproduction tube boxes, secured by a handmade paper ribbon (by courtesy of Soundlumia.) Shipping Policy  - This item is eligible for  Soundlumia-sponsored guaranteed  3-day worldwide delivery at special flat rates.    US shipping: $15 for ALL states via FedEx Express    International shipping: $35 for ALL countries via DHL Express Worldwide  - Declared value for ALL international customers will be accurate and correct. Formal invoice from Soundlumia showing FULL purchase amount will be provided as customs documents, attached to the DHL package. - Same day shipping: 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.  Return Policy - Please READ carefully Returns are acceptable if we made a mistake by delivering you wrong or defective products. Tubes we sell are guaranteed to work because we run professional tests and sound evaluation TWICE: before they are approved for listing AND before we ship them to customers. So the "defective item" case doesn't exist and please do not bother trying - this type of returns will NOT be accepted without proof that tubes are faulty and we will open disputes with eBay. Sound experience is very subjective and we do NOT accept returns because you do not like the tube's sound signature or because you changed your mind about your purchase. Please contact us to work things out before submitting return requests claiming "item is defective" or "item not as described" or "just didn't like it" or "changed my mind." Tube rollers abusing the return system will be reported to eBay immediately and negative feedback will be left to your account - that's guaranteed. We have already opened several dispute cases to report abusive buyers and eBay has always ruled in our favor. International buyers who request return or refund claiming your country's import duties or sales tax/GST/VAT are too high will be reported to eBay immediately for dishonesty and will be permanently blacklisted from purchasing from Soundlumia. We are committed to working closely with eBay to help rid the marketplace of dishonest, unjust, unreasonable, abusive buyers that are detrimental to the vintage tubes market and the audiophile community. 
  • Condition: Opened – never used
  • Condition: Strong NOS tubes in pristine condition - Diamond bottom - Military-grade performance - Extremely low noise - 1960s Ulm, Germany production - Unparalleled sound characteristics and superb build quality - True holographic sound stage with layered details and ultra clarity - Identical date code - Elusively rare
  • Brand: TELEFUNKEN
  • Type: NOS Tube
  • Custom Bundle: No
  • Model: E88CC 6922 6DJ8 ECC88 E188CC CCa
  • Country/Region of Manufacture: Germany
  • Modified Item: No

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