Sophia Electric Coke-bottle KT88-ST Tubes (long life version) Options:Grade A (Top 10%) One tube with one year warranty Hand-assembled in cleanroom conditions by

Hand-assembled in cleanroom conditions by skilled artisans

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

Desktop vacuum tube DAC and electrostatic headphone amplifier

35mm single-ended Line outputs Balanced XLR

The new AF-1a is specially optimized for big bass in smaller systems

Sophia Electric Coke-bottle KT88-ST Tubes (long life version) Options:Grade A (Top 10%) One tube with one year warranty Hand-assembled in cleanroom conditions bySophia 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,