the top sonic echelon, limited-runs made on mullard tooling w/ japan hard vacuum, vintage foil-edge dgetter 12ax7 ecc83 quad
incredibly rare late '50s production sought after by audiophiles for their high resolution + live-concert intimate rich imaging
the hard to find first foil-tip dgetter captures more detail than any other production w/ phenomenal low-register 3d presence
the tube-era british supplied expertise + tooling via 'transfer of technology' resulted in several critical audiophile advantages:
...same anodes, micas, electrode geometry, glass envelope, spot welding, grid wire spacing and cathode processing chemistry!
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take your listening experience to a higher level of dimensional ambient engagement and immersive holographic imaging
these vintage types are coveted for their warm front row live-concert style delineation of instruments vocals and percussion
tune and transform your sound reproduction across multiple genres w/ more realism and delicate intimacy
carefully curated direct japan import w/ authentic fragile oe tube boxes + free postage!
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full gm conductance test 84/88~84/83~86/84~88/80% gm (65) + important life test pass! (key longetivity indicator)
our special gm output test applies real world 225vdc voltages w/ filtered dc, plus an impeccable gas test + leak/short check
mutual gm conductance scores are the ability to transfer current ~ especially important for push-pull preamps
also supplier double checked for conductance via supplier tv7 / hickok 539c for unparalleled accuracy
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we also pride ourselves on a proprietary complimentary value-added complete refurb screening deox process
also see our new official site! true-nos sealed-box rarities, and reserve/request options, new updated part number list below
give 100+ session hours w/ your specific amps voltage to fully settle in (break-in is important)
ships well packed worldwide
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authentic vintage hifidelity audiophile / preamp / mic tube curation by caliacoustics
including limited special editions + rare true-nos sealed box + pinched waist
also high-resolution headphones + premium vocal stage and studio mics
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6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cca
12ax7 12at7 12au7 12bh7 / ecc83 ecc82 ecc81 e82cc
6bq5 6au6a 6267 6ca7 6ca4 6aq5 / 6v6 6l6 6sl7 6sn7 5y3 5u4 5ar4
5814 5751 5965 6189 6201 7062 7189 / cv2492 cv4004 cv455 cv4085
el34 el84 ef86 ef94 ez81 ecc85 e180cc gz34