NOS SED "Winged C" EL34 Vs. Sophia Electric EL34 Vacuum Tubes

Jeff Day's Comparison: NOS SED "Winged C" EL34 Vs. Sophia Electric EL34-ST Vacuum Tubes:

"Honestly, I couldn't wait to get the SED "Winged C" EL34's out of the Leben CS-600 and get the Sophia Electric EL34-ST's back in to restore the musicality of my system. 

Well, the Sophia Electric EL34-ST vacuum tubes ($100 USD each) absolutely creamed the SED "Winged C" EL34 tubes ($60 USD each). 

The Sophia Electric EL34-ST vacuum tubes are expensive at $100 USD each, but they definitely deliver from a musical & sonic perspective, and are in a different league from SED "Winged C" EL34 tubes.

The Sophia Electric EL34-ST vacuum tubes seem to be going strong after two years and about 6 months of playing time, averaging probably about 4 hours a day of use. If anything they sound better than ever, so I'm hoping they'll keep going for another year or so before they need replacing.

At around $400 for a quad Sophia Electric EL34-ST vacuum tubes that works out to be $14.30 USD a month to date (28 months), and if they make it to 36 months it works out to about $11.11 a month. That's a little less a month than the price of a Netflix subscription."