Description

the sonic top echelon, 2 matched rare toshiba special hi-fi series 12au7 ecc82, revered audiophile crown jewels! these hard to find direct japan imports were selected for low noise sound reproduction and premium grade quality metals sought after by guitar players and listeners looking for rich creamy mids and lush warm layering similar to telefunken the incredibly organic tone is sweet and extended w/ a mellow yet open sound and beautful clean tones the later breakup and bass is harmonically rich, involving and defined lows w/ a musical transparent experience rare original hifi boxes are included and both tubes are gm matched, twice tested and audio grade auditioned immerse yourself and upgrade your preamp w/ luminous premium screened collectible audiophile tubes full mutual gm conductance test 101/100~100/101 % mutual gm ( 65 min good) + useful life test pass! (a key longetivity indicator) + leak / short / gas check we pride ourselves on a proprietary complimentary value-added refurb screening deox process always give 100+ session hours at your amps voltage (breakin is important) nice silkscreens, ships fast well packed worldwide w/ free postage authentic vintage hifidelity audiophile / preamp / mic tube curation by caliacoustics see our official site! reserve/request options and limited special editions + rare true-nos sealed box + pinched waist + high-resolution headphones