{"product_id":"mullard-e88cc-6922-10m-master-series-blackburn","title":"Mullard E88CC 6922 10M Master Series- Blackburn","description":"\u003cdiv\u003e\n\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan color=\"#2a633a\" size=\"4\" face=\"Arial\" style=\"color: #2a633a; font-family: Arial; font-size: large;\"\u003eSoundlumia's Opinion\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e\u003cspan color=\"#2a633a\" size=\"4\" face=\"Arial\" style=\"color: #2a633a; font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eDraw up the curtain and let the spotlight in as this is exactly where these tubes deserve to stand. The Mullard 10M Series! Designed and built specifically for audiophiles with industrial-grade specs by the special high-end audio unit at both Blackburn and Mitcham factories (recall Philips' SQ but this is at a much higher caliber.) These tubes went through rigorous testing \u0026amp; screening processes according to the highest standards of the tube industry. Minimum 10K hours of heater life, matching triodes and near zero noise are just the beginning. The 10M Series was Mullard's official answer to the super high-end Telefunken E88CC tubes (CV2493, E188CC and CCa) and remains one of the very top choices for serious audiophiles and sound professionals. The only one problem (and there's no real solution to it) with these tubes is they are elusively rare as they were produced in very limited quantity and only in select years of production. Exclusively presented here by Soundlumia is a perfect matched pair of 10M Series from the 1960 Blackburn production. Welcome to the concert hall of 10M Series!\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eFor those who feel the Mullard E88CC tubes are less analytical than their German counterparts, the 10M Series proves that the best tube can be both analytical and musical. One can almost say this is a better version of Telefunken CCa because you get the laser precision in detail retrieval of Telefunken tubes and the unmistakable British warmth in sound, which is NEVER found on Telefunken. Next, the holographic soundstage...another Telefunken \"proprietary\" feature is being seriously challenged here as well: 10M Series' presents a less curvy sound stage than Telefunken CCa without compromising the full 3D imaging. You hear everything right here like at a concert hall INSTANTLY and don't have to look for the harp sound in the corner (recall how many times you have done this with Telefunken tubes?) Now there's only one last thing needed to treat the Telefunken \"thinness and hollowness\". How about some expansive and forward midrange? But isn't that what Mullard does the best after all? It only gets better on the 10M Series: elegant,  gentle, calm, smooth and fluid.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eAny sound review on a Mullard tube without discussion of its \"British warmth\" would be incomplete. So we have dedicated a full paragraph to the comparison between the classic Mullard warmth and the 10M Series warmth. Recall how many times you feel the vocals on Mullard's get too warm it feels like heat right in your face? That is gone on 10M Series! The moment you turn on your music, the 10M warmth begins to release slowly (and of course surely) and gently flows through your ears, your veins, your bones and reaches your fingertips before you know it...and then it warms your heart. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e10M Series = the ultimate audiophile tube.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eLastly, recall the price tag of Telefunken CCa. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb style=\"color: #2a633a;\"\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003e\u003cspan\u003e***\u003cem\u003e\u003cstrong\u003eSOLD*\u003c\/strong\u003e**\u003c\/em\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003e\u003cspan\u003e2x Mullard E88CC 6922 O-getter - 10M Master Series – Blackburn 1964\/65 - NOS+\u003c\/span\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003e$857.40\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb style=\"color: #2a633a;\"\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0809\/2388\/5888\/files\/1750095216375.png?v=1750095802\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb style=\"color: #2a633a;\"\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003e\u003cspan\u003e2x Mullard E88CC 6922 - 10M Master Series - Blackburn 1967\/68 - Strong\u003c\/span\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003e$742.00\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb style=\"color: #2a633a;\"\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0809\/2388\/5888\/files\/1746805695967.png?v=1746892632\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb style=\"color: #2a633a;\"\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003e***\u003cem\u003eSOLD***\u003c\/em\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003eMullard 6922 = E88CC Matched Pair - 10M Series- Blackburn 1961 - Strong NOS\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 128, 0); font-family: Arial; font-size: large;\"\u003e\u003cb\u003e$674.00\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan color=\"#2a633a\" size=\"4\" face=\"Arial\" style=\"color: #2a633a; font-family: Arial; font-size: large;\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan color=\"#2a633a\" size=\"4\" face=\"Arial\" style=\"color: #2a633a; font-family: Arial; font-size: large;\"\u003e\u003cb\u003eProfessional Tube Testing\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eBoth tubes tested \u003cb\u003eSuper Strong NOS (\u003c\/b\u003e125%+ nominal mutual conductance\u003cb\u003e)\u003c\/b\u003e on a Mercury 2000 tube tester with the following result (mutual conductance in uMhos and percentage of nominal):\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eTube 1 (Left):  \u003cb\u003e17,500\/17\u003c\/b\u003e\u003cb\u003e,200 (140%\/139%)\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eTube 2 (Right): \u003cb\u003e16,000\/15,500 (128%\/124%)\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eGood tubes start at 7000 and new tubes (incl. NOS\/NIB) \u003cb\u003e12,500 - 13,000\u003c\/b\u003e, and the Mercury 2000's \u003cb\u003erated mutual conductance (nominal)\u003c\/b\u003e for new tubes is \u003cb\u003e12,500\u003c\/b\u003e. Test result can also be seen in the pictures. In case you wonder what all these numbers would mean to your sound experience, it's actually quite straightforward: mutual conductance directly translates to \u003cspan color=\"#2a633a\" style=\"color: #2a633a;\"\u003e\u003cb\u003ea tube's ability to amplify sound\u003c\/b\u003e\u003c\/span\u003e so the higher the numbers the stronger.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan color=\"#2a633a\" size=\"4\" face=\"Arial\" style=\"color: #2a633a; font-family: Arial; font-size: large;\"\u003e\u003cb\u003eAppearance \u0026amp; cosmetic condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eWe treasure this pair also because of the pristine condition of both tubes - nearly 100% of the paint and lettering are well retained. The acid-etched Mitcham date codes are a bit fainted but the factory and year digits are visible on both tubes:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cb\u003eB1?? (B = Blackburn, 1 = 1961, ? = Unknown month, ? = Unknown # of week of the production month)\u003c\/b\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cb style=\"color: #2a633a;\"\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003ePackaging\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cb style=\"color: #2a633a;\"\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003eThis pair of tubes will be packaged in the \u003cb\u003enew \u003c\/b\u003ewhite boxes, secured by a handmade paper ribbon (by courtesy of Soundlumia.)\u003c\/span\u003e\u003cspan size=\"4\" face=\"Arial\" style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mullard","offers":[{"title":"Pair \/ 2x 1964\/65 - NOS+","offer_id":50779943665984,"sku":"","price":857.4,"currency_code":"USD","in_stock":false},{"title":"Pair \/ 2x 1967\/68 - Strong","offer_id":50627765010752,"sku":"266507704309","price":742.0,"currency_code":"USD","in_stock":true},{"title":"Pair \/ Matched 1961 - Strong NOS","offer_id":50627765043520,"sku":"266507704310","price":674.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/2388\/5888\/files\/20250615_165631355_iOS.heic?v=1750096114","url":"https:\/\/www.soundlumia.com\/ja\/products\/mullard-e88cc-6922-10m-master-series-blackburn","provider":"Soundlumia","version":"1.0","type":"link"}