Nos matsu 6ca7 el34 vintage preamp power audio tube, legendary tone. Hard to find special edition nds selection marks, highest grade lowest noise. Older production w/ the best precious metals = better sound reproduction. Direct import from old japan radio collections, pristine condition w/ no flashing. Full amplification leak short gas life test 110 % mutual gm (100nos/65good).
Give several sessions or 100+ hours in your specific preamp to settle in. Authentic vintage audio curation and master refurbish by cali acoustics.
10+ years of audiophile community top marks, and over 35 years audio expertise. 6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cca. 12ax7 12au7 12at7 12at7wa 12ad7 / ecc83 ecc82 ecc81 6201. 6bq5 el84 7189 7189a 6267 ef86 6aq8 ecc85 6ca7 el34. Tube mics rode k2/ntk audio technica at-4060 bluemics robbie mono/stereo preamps.