Sophia Electric Aqua III 274B Rectifier Tube Options:One tube with 30 day warranty Six independent input gain adjustments

Six independent input gain adjustments

Machined from solid brass in Richmond

for minimal inter-channel interference and a genuinely dual-mono power architecture

but in a heavier chassis that accommodates further internal refinements

lower-resistance run that improves speed and resolution without changing tonality dramatically

Sophia Electric Aqua III 274B Rectifier Tube Options:One tube with 30 day warranty Six independent input gain adjustmentsThe latest Sophia Electric design and production of this premium 274B rectifier tube was originally planned for Sophia Electrics 20 Year Anniversary in 2021, but due to the Covid 19 pandemic, this product was delayed. Thus, Sophia Electric elected to rename it as the Aqua II version of the popular original Aqua blue glass 274B rectifier tube. The Aqua III 274B features a number of technical innovations: The Aqua III has a higher current output (max