Description
the darling of audiphile collections, vintage '60s mullard are top sonic echelon performers, w/ a sweet soulful sonic personality the holographic liquid sound reproduction captures an incredible amount of harmonics! dynamic musical, and truly holographic this 10k hour gold pin e88cc/6922 is revered for a smooh extended tonality, richly polished harmonics, and a warm resolve few brands can capture the vocal fidelity, live concert realism, and vinyl style intimacy of blackburn mullard, made in 1969 the lush depth, immersive qualities, responsive bass, and vivid detailed transparency, all contribute to mullards collectible lore whether in hifi phono preamps, tube mics, or stereo tuners, this premium low noise 6dj8 ecc88 upgrade is sure to please 1 x old stock mullard e88cc/6922 w/ b9e3 etch code, blackburn 1969 authentic, nice rca silkscreen and oe box included this limited run 1-year only truly collectible edition features a high definition copper neck getter + undergoes a complimentary refurbish and careful deoxit gold process ~ one of a kind value added quality control full mutual conductance gm test, several available: tube1: 90/105 % gm ~ tube2: 116/114 % gm ~ tube3: 122/126 % gm (65% min good) our high power gm output test applies up to 250v w/ filtered dc, more than many other testers, simulating real circuits + useful life check pass (longetivity indicator) + leak / short / gas check + audio grade mic certified low-noise test pass give several sessions or up to 150+ hours w/ your specific amps voltage to fully break-in / cure ships well packed worldwide w/ free economy postage! ~ authentic vintage hifidelity audiophile / mic / power / preamp tube curation by caliacoustics ~ see our official site for reserve/request options + new arrivals + true-nos sealed box rarities + limited run special editions + ultra high-res headphones 1) true holographic sound reproduction (amperex usa/heerlen holland + telefunken/siemens germany + mullard/brimar britain) 2) full frequency pleasant extended warm dynamics (heerlen holland + siemens germany + mullard/brimar britain + tesla czech) 3) natural organic tone w/ flat response, warm rich imaging (telefunken/siemens/valvo/lorenz germany + mullard mitcham britain) 4) precision bass w/ depth and lush musical resolve (heerlen holland + siemens/valvo germany + ei yugo + tungsram hungary) 5) dynamics, musical warm sound stage (amperex usa/heerlen holland + siemens/valvo germany + mullard blackburn britain) 6) clear layered detail, subtle tone compression (telefunken/lorenz germany + tungsram hungary + tesla czech + toshiba japan)