6) clarity w/ layered detail + smooth compression (leading brands: telefunken/lorenz germany + tungsram)
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the sonic top echelon from siemens germany! w/ original rca boxes these 1966 editions are one of the best tone years ever
siemens tubes are regarded as reference grade, musical warm involving and less sibilant than amperex bugle boys
this brings more extension depth especially important for instrument delineation, vocal fidelity, and lush cymbal splashes
the crimped getter neck delivers holographic linear transparency and bass kick, pure uncolored sound reproduction
ga2=6a / ga2=6k, the last of the warm tone years for siemens germany! later production were quite harsher + brighter
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often compared to telefunken, siemens tubes have less compression and more depth resolution, phenomenal mid-band imaging
top ranked must-listen lively upgrades for stereos, preamps, rode k2 ntk mics + hifidelity apps... upgrade your sound today!