Pair of 6k4 Tubes, Clear Soundstage, Smooth HiFi Sound, Low Noise 5654 Pin

These 6K4 tubes show you the difference between natural vocal reproduction and simple music. They sound clearer, emphasizing clarity, a wider soundstage, and a more noticeable bass response. Hear the difference, enjoy your music.
Replacement for 7-pin 5654/6AK5/6AK5W/6Zh1P/6J1/6J1P tubes. It can directly replace WE-403A/403B/EF95 and regular 5654 tubes. And can be used in devices supplied with 6J2/6J3/6J4/6J5/6K5 tubes as a replacement.
Each package contains a pair of fully tested and matched 6K4 vacuum tubes.
High reliability and stability. HiFi and smooth sound, low noise.
It's a fuller and wider soundstage. The highs are smoother and the bass is clearer and more pronounced, while more complex music is more defined.