Sophia ElectricPatented KT88-ST tubes, 2016 PFO Award Winner,This patented Sophia Electric new KT88-ST tube model has the best high frequency extension that most KT88 tubes are lacking. Yes, KT88 can have refined sound if you use this new KT88-ST tube. Thi...425.00
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Sophia Electric Patented KT88-ST tubes, 2016 PFO Award Winner, Best high frequency extension, best sound ever made [Expired]
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