A very nice pair of Sophia Royal Princess 300B tubes with light use,approximately 300-400 hours, which sound GREAT, but I sold my 300B amps so I no longer have a use for these. The list price of the Sophia Royal Princess 300B's is now $1200.. I have many amps and not much time so the new owner will get an excellent lightly used pair of Sophia's very well reviewed top of the line 300B tubes at a good price. Pictures will follow shortly. I will cover Paypal and shipping in the Continental USA at my asking price. Thank you for reading my ad.
