1) holographic warm sound reproduction (leading brands: telefunken + siemens germany)
2) pleasant long-listen full frequency extension (leading brands: siemens germany + mullard gt britain)
3) natural tone w/ flat response mid-range (leading brands: telefunken + valvo + siemens germany)
4) precision bass w/ depth and resolve (leading brands: siemens + valvo germany + amperex heerlen)
5) musical linear sound reproduction (leading brands: amperex heerlen + siemens germany + mullard gt britain)
6) pure clarity w/ layered detail compression (leading brands: telefunken + lorenz germany)
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illuminate your sound system w/ an audiophile collectible crown jewel! truly the breath of life, the pinnacle of sound
e188cc 7308 are regarded as more vivid w/ better bass than e88cc or even cca, a taller sound stage preferred by audiophiles
professionally ranked as one of the lowest distortion tubes ever made, full frequency pure clarity king w/ pin-point accuracy
e188cc 7308 also have less noise due to their rugged internals and less vibration prone to microphonics or low level tinitis
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often compared to telefunken, siemens tubes have less compression and more depth resolution w/ phenomenal mid-band images
the top end is sparkley w/ no roll off and a nice sense of air, and the smooth mid range provides reference grade holographics
the low-mids are warm involving immersive and lush, w/ a phenomenal euphoric finish for vocals instruments and percussion
a very balanced uncolored harmonic sound stage... this neutral tone reproduction equates to linear musical clear transparency
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carefully curated selected and screened authentic w/ siemens boxes, plus twice tested for accuracy!
add fidelity to your preamp stereo or mic today, try in the position / application that sounds best to you
for a reference grade timeless classic look no further than authentic siemens e188cc 7308 gold pin
see our attached hard to find spec data sheets ~ see the incredible curve reach for yourself!
collectible 1966 pair includes siemens boxes and has been twice tested and audio auditioned
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full conductance test 101/103~100/105% mutual gm (65 % good) + useful life test pass (important longetivity indicator)
our unique dynamic output mutual gm test applies 225 vdc simulating actual operations w/ filtered dc + leak short gas check
mutual gm conductance scores relate to current transfer ability, especially important for push pull preamps
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we pride ourselves on a proprietary complimentary value-added complete refurb screening deox process, plus free postage!
full studio sound audition process w/ high resolution closed back monitors, phono grade mic ready
give 100+ session hours w/ your specific amps voltage to fully cure (break-in is important w/ vintage tubes)
ships worldwide well packed
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authentic vintage hifidelity audiophile / preamp / mic tube curation by caliacoustics
also see our official site! reserve/request options and new 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
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6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cca
12ax7 12at7 12au7 12bh7 / ecc83 ecc82 ecc81 e82cc
6bq5 6au6 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 ez81 ecc85 e180cc e80cf gz34 (ef804 soon)