Demo Pair: Sophia Electric Blue Glass 300B 2.5V Tubes for 2A3 Amplifiers
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The price is for 2 matched Grade A Sophia Electric Blue Glass 300B 2.5V tubes.
Want more power and more sonic dynamic headroom in your 2A3 amplifier? This Sophia Electric blue glass 300B/2.5V is the answer. Just plug in and play without any further modification on the amplifier, and then you will have a sweet 300B sound in your 2A3 amplifier.