the legendary valvo hamburg sound stage is harmonically lush, ambient transparent imaging and phenomenal vocal intimacy
these top sonic echelon limited-run rare 1963-1964 ring getter editions are very hard to find and capture a rich resolution air
their euphoric involving sound stage is incredibly expansive and highly musical, featuring thick bass and warm yet clear resolve
their pin point accuracy and sparkley highs are unparalleled, and provides the most lucid depth for percussion and instruments
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these very popular 6dj8/ecc88 plugin subs are especially useful in preamps that are tough on 6922/e88cc lifetime
they also offer more head room, better low bass kick, and extended upper frequencies due to their linear .3a constant design
often compared to 7308 stages, 7dj8/pcc88 are revered by audiophiles worldwide, revealing more detail + lively lucid energy
the breath of life... '60s valvo germany have the most precious quality metals of the tube-era, no comparison to later types
these long life low noise vintage builds offer the most tone extension and live-concert holographic sound reproduction!
authentic hamburg 1963 / 1964 etch codes: dj4/d3e1 ~ dj4/d4b4 w/ fair to nice silkscreens + old/new valvo boxes included
all tubes are twice tested! plus sound circuit studio audio noise-free auditioned, matched and include free postage!
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full conductance test balance 105/95~92/92 % mutual gm (65%) + useful life test pass! (key longetivity indicator)
our unique gm output test applies real world circuit voltages and has an impeccable gas short and leakage test
mutual gm conductance is the ability to transfer current, especially important for push-pull preamps
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finding an audio grade 6dj8 can be daunting! most sellers don't check for phono-level noise or mic certify them
we also pride ourselves on a proprietary value-added complimentary complete refurb screening deox process
full studio sound auditioned w/ ultra high-res closed-back monitors and premium aira preamps
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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vintage authentic hifidelity audiophile / preamp / tube mic curation by caliacoustics
see our official site! rarities and reserve/request options, part number list below
including limited special editions + rare true-nos sealed box + pinched waist
also high-resolution headphones + premium vocal stage and studio mics