we pride ourselves on a proprietary value-added complete refurb screening and deox process, plus free postage!
be sure to see our new offical site! new part numbers added daily including rare limited editions + sealed box true nos
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old stock vintage matsu national 5ar4 gz34 preamp audio tube w/ rarest dual dgetters and original box
the british supplied expertise and tooling via 'transfer of technology' resulted in several critical audiophile advantages:
same anodes, micas, electrode geometry, glass envelope, spot welding, grid wire spacing and cathode processing chemistry!
 take your listening experience to a higher dimension w/ engaging detail and immersive harmonic smooth imaging
revered for their sound reproduction, these direct japan imports are carefully curated top echelon vintage
beautiful warm live-concert style delineation between instruments vocals and percussion
sonic review: "great balance across the whole range, simply wonderful rich full sound"
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full amplification test 101/102 % gm (65 % good) + our useful life test pass! w/ no meter movement
our unique gm output test applies 225 vdc simulating actual circuit operations w/ filtered dc + leak short gas test
ships fast well packed worldwide ~ authentic vintage hifidelity audio curation by caliacoustics