Price is for one pair of Sophia tested and matched Shuguang 845B tubes. Traditionally, the Chinese tube quality is all over the map, some are good, most are not, matched pairs are matched with 20ma-70ma variation, so the end users do not like that kind risk.
Thus there is value for the Virginia based Sophia Electric to test them with a warranty. These for sale tubes were tested by Sophia Electric as the stocking tubes to supply with their amplifiers. Sophia Electric is about to introduce the next generation 845 tubes of its own production, so these new unused tested matched 845B tubes are available for sale. $285 per pair with 30 days warranty from Sophia Electric.
One pair packed in a carton box with foam inside. I will double triple boxes with a lot of foam packing to secure ship worldwide. I ship with insurance, I will take care of you in case of shipping damage. If you feel you need warranty exchange please contact Sophia Electric directly with 30 days of this eBay transaction(buyer pay one way, Sophia pays return shipping).
These big triode 845 tubes should avoid excessive shipping whenever possible. Note Shuguang does not take returns, nor the tubes would worth the return shipping cost back to Shuguang, so here is the opportunity for the North American audiophiles to buy a pair of tubes that is tested matched and with warranty from Sophia Electric.