regarded as the top sonic echelon for holographic sound reproduction, liquid rich euphony and expansive detailed depth
2 matched grail ranked premium quality dgetter amperex usa 6922 gold pin audio tubes w/ same batch code of 61-07
the last year of the high resolution 'curved' d-getter, these 1960 production have a unique low-register bass resolve
the highs are phenomenal w/ an incredible peak quench which high-end preamps and hifidelity tube mics benefit from
the euphoric bass register picks up the slightest nuances that later production tubes remiss, quite intimate yet warm
the premium quality moniker is legendary for its large sound stage revealing more percussion and instrument delineation
revered by audiophiles, these are often directly compared to rare pinched waist variety or heerlens sweet house sparkley resolve
immerse yourself in luminous transparency, live-concert clarity, and a front-row vinyl style listening position
twice tested audio circuit auditioned noise free and phono grade mic certified + amperex boxes included
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full conductance test, superb balance 110/102~100/110 % gm (65good/100nos) + life test pass! (a key longetivity indicator)
our unique gm output test applies real world 225vdc voltages w/ filtered dc + an impeccable gas / leak / short check
mutual gm conductance is the ability to transmit current, especially important for push-pull high end preamps
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full studio sound audition noise free via high res headphones and premium aira preamps
we also pride ourselves on a proprietary complimentary value-added refurb screening and deox process
give 100+ session hours w/ your specific amps voltage to settle in (break-in is important)
very nice silkscreen condition, ships well packed worldwide w/ free postage!
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authentic vintage hifidelity audiophile / preamp / mic tube curation by caliacoustics
see our official site for reserve and request options and limited run rarities
+ special editions + rare true-nos sealed boxes + pinched tight waist
+ high-resolution headphones + premium vocal stage / studio mics
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6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cca
12ax7 12at7 12au7 12bh7a / ecc83 ecc82 ecc81 e82cc e81cc
6bq5 6au6/a 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 e80cf ez81 ecc85 ef804 e180cc gz34 (6cg7 + 6fq7 soon)