I wrote all day yesterday and finished up the review of the Sophia Electric EL34-ST and Aqua 274B vacuum tubes.

The Sophia Electric EL34-ST power tubes (above) and Aqua 274B rectifiers (below) outperformed everything that's ever graced my Leben CS-600 integrated amplifier, and vintage McIntosh MC30 monaural amplifiers, respectively, and by a large margin.

I don't know what makes these tubes sound so magnificent musically and sonically. I could be the contribution of the ST bottle shape, or the noise reducing blue glass, the design & materials of their internal structure, or Richard's prowess in voicing tubes, but the Sophia Electric Aqua 274B rectifiers and the Sophia Electric EL34-ST power tubes are both home runs by Richard, and they are simply superb both musically and sonically.

Your can read the full review here.