Brand New Factory Matched Quad 4x Sovtek 6550WE Vacuum Tubes

New, factory Platinum matched set of FOUR SOVTEK 6550WE tubes.  

These are burned-in for 24 hours and then factory matched at real world voltages.  Finally the test results are factory labelled on each tube box. 

The SOVTEK 6550 tubes are the OEM choice of many amplifiers sold today and can handle rigorous use while maintaining excellent sonic characteristics.

They are burned in for 24 hours and then platinum matched by the factory at 400V plate, 225V screen and -19.1V bias. Insist on factory platinum matched tubes for best performance.

All tubes carry the 90 day factory warranty against defects from date of purchase.