3 nos brimar gt britain ~ unique limited run audiophile crown jewels! a very popular mullard alternative
revered for incredibly accurate sound reproduction, precious metal internals, and detailed lush extension w/ warmth
the bass is also incredibly expansive w/ pin point musical accuracy and chords jump out at you, especially vocals / instruments
this recreates a live-concert realistic atmosphere that audiophiles crave, sought after euphoric rich tone imaging
direct gt britain authentic import, twice tested and audio grade phono / mic ready w/ no noise
add fidelity to your preamp stereo or tube mic, try them in the position that sounds best to you
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full conductance test 101/104 ~115/125 ~128/130 % gm (65) +useful life test pass! (a key longetivity indicator)
mutual gm output applies real world 225vdc voltages w/ filtered dc + an impeccable gas test and leak/short check
gm conductance is the ability to transfer current, especially important for push-pull preamps
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full sound auditioned w/ closed back ultra high resolution monitors and aira preamps
all tubes also undergo a complimentary proprietary refurb and deox process! one of a kind qc
give 100+ session hours w/ your specific amps voltage (break-in is important)
ships well packed worldwide + free economy postage + plain or branded boxes
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vintage authentic hifidelity audiophile preamp tube curation by caliacoustics
see our official site! reserve/request options and limited run rarities
+ special editions + rare true-nos sealed box + pinched waist + high-resolution headphones