telefunken <> germany are legendary audiophile crown jewels ~ organic warm tonality and clear sound reproduction
these rare 1959 berlin production feature the best metallurgy and most sought after fat getter for the most holographic imaging
the high quality ef804 was made for professional recording and audio, featured in v72/v76 tube mics and aeg magnetophones
the revered low noise floor is so quiet which is why these are some of the most popular for siemens / klangfilm / neumann studios
subtle detailed harmonic layering produces a smooth stage compression w/ an incredibly intimate vocal frequency response
like a live concert in your living room, telefunkens liquid transitions are a touch more popular than siemens for good reason!
these tubes are also rumored to feature special cathode internals w/ long 10k hour lifetime, hard to find 1959s are collectible
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both tubes feature the same 1959 berlin code and build ~ b1009904 / b1009904 w/ diamond bottoms <>
both tubes are rated at 5ma conductance via funke w19 and include telefunken boxes
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we also pride ourselves on a proprietary complimentary value-added refurb screening deox process
give 100+ session hours w/ your specific amps voltage (break-in is important)
ships fast well packed worldwide + free postage!
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authentic vintage hifidelity audiophile / preamp / mic tube curation by caliacoustics
see our official site! reserve/request options and part number list below
including limited special editions + rare true-nos sealed box + pinched waist + high-resolution headphones