Sophia Electric Coke-bottle KT88-ST Tubes (long life version) Options:Grade A (Top 10%) One tube with one year warranty selectable NOS and OS modes

selectable NOS and OS modes

Desktop vacuum tube DAC and electrostatic headphone amplifier

Watch an independent video review of the Campfire Audio Relay to hear how it performs before you buy

genuine unit with full warranty support

3mm and 435g

Sophia Electric Coke-bottle KT88-ST Tubes (long life version) Options:Grade A (Top 10%) One tube with one year warranty selectable NOS and OS modesSophia Electric Coke bottle KT88 ST Tubes (long life version) This patented Sophia Electric coke bottle KT88 ST (long life version) tube has the most refined sounding with best high frequency extension, a cure for the dark sounding KT88 amplifiers. Jeff Day's Positive Feedback Online Review: "The Sophia Electric EL34 ST vacuum tubes remind me of a cross between 45 and 2A3 triodes in terms of voicing, with a smooth, more brightly lit, nuanced,