Offered here is a precision-matched pair of vintage MAZDA ECC81 vacuum tubes, featuring the classic Grey Plate structure and Top Ring Getter. These tubes are highly regarded for their low noise and detailed sonic signature, making them an ideal choice for high-end audio preamplification.

Both tubes have been thoroughly analyzed on the Amplitrex AT1000 digital tester. Following our Percentage Method, the results below show how each triode section performs relative to the 100% factory design-center specifications for this tube type (Ip = 10.0mA / Gm = 5500 µMhos).