6922 balanced for your RM-9 MK1 and MK2. These go in the V1 socket.
These are the Sovtek 6922's from Russia and are a direct replacement for the 6DJ8. The 6922's are lower in noise and microphonics.
Our Super Low Noise tubes are quite simply the industry’s quietest tubes, suitable for the finest phono stages as well as any other critical application. Only 10% of the tubes we test perform well enough to be considered Super Low Noise.