Tested and matched Pair tube (2PCS) of low-noise 7-Pin United States GE JAN 5654W are considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. (JAN) Electron Tubes - Higher Durability and Life.
Manufactured by General Electric for military use (indicated by the JAN designation), this is a high-performance, long-life version of the standard 6AK5 and EF95 tube types. We all know that swapping out tubes can be one of the more effective ways of improving your tone.