This is Audio Note (UK) new 300B triode valve, the 4300E. They are produced exclusively for Audio Note (UK) by PSvane, to their specifications. No other company has these, even PSvane do not sell them. “It took a long time to perfect them, but here they finally are, and we are extremely proud of them, they’re the finest sounding current production 300Bs we have heard, by a dramatic margin.”
Available direct from Audio Note (UK)or ther authorised dealers/distributors.”
