dripping with vintage vibe, old production toshiba tubes provide an open yet mellow sound stage like a vinyl record

revered by guitar players for rich creamy sound reproduction which highlights the warm tube-eras precious metallurgy

involving beautiful clean tones that shine in low to mid gain apps, later breakup is harmonically rich and layered

defined lows relaxed mids and sweet highs, high musicality classic for preamps stereos tube mics and more hifi apps

whether its vocals instrumentals or percussion, the holographic sonic imaging of vintage toshiba are legendary


these rare direct japan import hi-fi specials are sought after by audiophiles, the highest grade ever available (cca of japan)

this translates into the purest sound reproduction via lowest-noise, batch selection, burn-in and special qc testing process

7189a are collectible premium high powered 6bq5 el84 upgrades w/ long life quality, slightly different pin configuration


full conductance test, 3 available: 101% ~ 100% ~ 98% mutual gm (65 % good) + important life test pass
our life test is a key longetivity indicator, and our unique gm output test applies 225 vdc simulating actual circuit load
all tubes are also checked w/ an impeccable gas + leak/short check, and a proprietary complimentary refurb deox process
give 100+ session hours w/ your amps voltage to fully cure (breakin is important)
ships well packed worldwide, and free economy postage! 3 singles available

~ authentic vintage hifidelity audio curation by caliacoustics ~
see our official site! new arrivals, limited editions, sealed-box true-nos rarities

+ more collectibles + high-resolution headphones