rare 1958 philips amperex heerlen holland are reference grade musical gems you can feel in your fingertips, the breath of life
the top sonic echelon, specially screened and selected by hewlett packard for low noise audio apps, rare collectible yellow tips
the high resolution dgetter sound stage provides holographic sound reproduction, warm lively transparent immersive and lush
this 'dutch house' cymbal-style resonant aftertaste is revered by audiophiles w/ a high level of vocal and instrument intimacy
sought after limited-run vintage sonic gems sit in the mids and sparkley highs are pleasant especially in mics for singers
high quality precious tube-era metallurgy w/ thick seam-top flashing and unique 1958 low-rise getter airy ambiance
whether its a preamp, tube mic, stereo, or hifidelity tuner these are sure to upgrade your sound w/ more luminous depth
both w/ same etch codes! authentic⊿ 8g /⊿ 8g + same production batch 850 / 850 print codes + amperex boxes included
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full conductance test pristine 121/121 ~ 120/114  % gm (65good) + life test pass! (a key longetivity indicator)
mutual gm output applies real world 225vdc voltages w/ filtered dc + an impeccable gas test and leak/short check
we also pride ourselves on a proprietary complimentary value-added refurb screening deox process
full studio sound audition via high resolution headphones and aira preamps, audio grade
give 100+ session hours w/ your specific amps voltage to settle in (break-in is important)
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 + limited run rarities
+ special editions + rare true-nos sealed boxes + pinched tight waist + high-resolution headphones