Description

1) true holographic sound reproduction (amperex usa/heerlen holland + telefunken/siemens germany + mullard/brimar britain) 2) full frequency pleasant extended warm dynamics (heerlen holland + siemens germany + mullard/brimar britain + tesla czech) 3) natural organic tone w/ flat response, warm rich imaging (telefunken/siemens/valvo/lorenz germany + mullard mitcham britain) 4) precision bass w/ depth and lush musical resolve (heerlen holland + siemens/valvo germany + ei yugo + tungsram hungary) 5) dynamics, musical warm sound stage (amperex usa/heerlen holland + siemens/valvo germany + mullard blackburn britain) 6) clear layered detail, subtle tone compression (telefunken/lorenz germany + tungsram hungary + tesla czech + toshiba japan) elevate and illuminate with siemens holographic depth, natural effortless pickup response, and reference grade tonality the crown jewel of any collection, siemens germany are an audiophile classic for stereo preamp listening and tube mics the top sonic echelon, professionally graded as one of the lowest distortion tube brands ever made, pure clarity kings transparent musicality and phenomenal detail, known for incredible bass kick and clear highs, pleasant and euphoric like a live concert in your living room, these vintage types capture the most intimate and realistic vocals, grail regard legendary mid '60s production has a deep extension and subtle warmth, and pure organic imaging revered by audiophiles neutral sound reproduction w/ sparkley resolve, less colored than heerlen and more bite traction to your tone vs telefunken authentic 1964 germany munich etch code of a01‡4g w/ complimentary siemens box and rca box included carefully curated, twice tested for unparalleled accuracy + phono grade mic certified low noise w/ 10k hour life whether its a stereo preamp tube mic or hifi setup, siemens e88cc/6922 are an incredible fidelity upgrade full conductance test, strong 82/90 % mutual gm (65) + useful life test pass! a key longetivity indicator our gm output test applies real world 225vdc voltages w/ filtered dc, plus an impeccable gas/leak/short check all tubes also undergo a complimentary proprietary value-added refurb and deox process, one of a kind qc give 100+ session hours w/ your specific amps voltage to fully settle in (break-in is important) ships well packed worldwide w/ free economy postage ~ authentic vintage hifidelity audio curation by caliacoustics ~ check out our official site! new arrivals, reserve/request options, true-nos sealed-box rarities + limited run special editions + pinched waist + high resolution headphones