BI SIEMENS & HALSKE MATCHED PAIR NIB RED LABEL TEST 10.5mA (9=100%) TWO VALVE TUBE RED LABEL BEST DRIVER STAGE TUBES TEST RESULTS ARE: TUBE 1= 10.5mA (WHERE 9mA =100%) TUBE 2= 9mA (WHERE 9mA = 100%) HIGH RELIABILITY & TOP PERFORMANCES HI END AUDIO EQUIPMENTS