2x Vintage Amperex USA 7308 /MatchedPair /E188CC CV4108 /Top 6DJ8 6922 Upgrade

The amperex usa sound is incredibly clear, w/ a rich dazzling top end, and vivid vocal reproduction, all w/ lush articulation. Often dubbed the breath of life! By listeners enthusiasts + vocalists, this clarity king has clearer resolution than holland types. The revered neutral stage w/ natural response, elicits a euphoric quality walking the line between warmth + transparency.

The playback is quite full and expansive, while revealing the most intimate details w/ a crisp resolve, + dimensional bass. Immerse yourself in luminous fidelity, vinyl-style old school charm, and low noise + 10,000 hour life premium gold 7308. The 7308 series (e188cc cv4108) is becoming a collectible, due to its rugged internals + improved microphonic dampening. Whether a mono block, preamp, hifi stereo, or tube mic, upgrade 6dj8 circuits w/ one of the highest ranked amperex ever made. Aesthetix Io phono stage, avalon compressor, audible Illusions pre, audio technica at-4060 tube mic, rode k2 / ntk tube mics. Audio notes, audio research vt200, audio horizons phono, arc ph-5 phono, air tight, blue mics, akai reel to reel tape recorder. Arc ls-15 linestage, ear acute one, BAT VK-30, BAT VK-3ix preamp, Blue Circle BC21.1, climate, conrad johnson et5 / ct6. Conrad johnson 16LSII / 17LSII preamp, cat sl-1 mark III, counterpoint magnum opus 1 preamp, cary. DODD audio linestage preamp, decca Integrated amp, einstein, eastern electric minimax cd player. EAR - Herron 6- Kora Hermes II tube dac, Herron VTSP-2 preamp, earmax, herron 3a, lamb, Lector. Manley Chinook, Musical Fidelity, manley steelhead, reader, Music Hall 25.2 / 25.3, peachtree nova. Pathos Integrated amp, raysonic cd, Scott Nixon DAC, sonic frontiers line 2, Supratek Cortese preamp. Sunfire Classic vac tube control center, pathos classic one / mkIII, vac, woo audio wa3, zande. ECC88 6DJ8 E88CC E188CC CV5358 M3624 CV2492 6N11 V50064. 8416 7308 6922WA CV4108 CV5358 CV4110 CV4111 PCC88 7DJ8. 2x matched amperex usa 7308, authentic vr etch visible w/ magnifier. W/ boxes included, + old silkscreens visible!

Fully tested for mutual conductance, gm micromhos / % gm + leak/short/gas checks. Tube pair1: 90/90 98/88 % gm (65) tube pair2: 90/90 90/86 % gm (65). Pair3: 121/120 116/122 % gm (65) (tube 2 also includes amplitrex digital results).