Description

nec nippon are revered for their neutral balanced smooth sound stage, great bass, and true authority, a classic big sound tube the uncolored sound reproduction highlights musicality and a variety of genres, w/ more precision and less tonal mascara the pure sound quality, long life time, and premium quality, all contribute to the lore and collectibility of rare old nec nippon w/ a long and tenured history going back to 1899, nec japan was even utilized during 1960s olympics worldwide broadcast take your listening/production experience to a higher level of dimensional engaging detail and immersive harmonic imaging transform playback articulation and singer vocals and acoustics w/ more realism and rich bass resolve and texture reveal these old production types capture live-concert definition, highlighting percussion, and instruments w/ ethereal warmth 4 x old stock matched nec nippon japan 12at7 ecc81, carefully curated direct from japan + complimentary value-added refurb screening and deox process ~ value-added quality control full mutual conductance gm test, several matched quads in stock: quad1: 110/112~118/120~115/112~120/121 % gm ( 65 % min good) quad2: 100/100~105/101~102/105~104/106 % gm ( 65 % min good) (sold) quad3: 95/102~92/92~95/94~86/92 % gm ( 65 % min good) our high power output test applies up to 250v simulating real circuits, more than many other testers + life test pass! (key longetivity indicator) + impeccable leak short gas check always give 150+ session hours at your amps voltage to fully cure / break-in ships fast well packed worldwide w/ free postage! vintage authentic hifidelity audiophile / preamp / tube mic / power tube curation by caliacoustics see our official site for new arrivals + reserve/request pricing options + limited special editions + rare true-nos sealed box + pinched waist + high-resolution headphones