Features:
* Brand new and high quality
* Made of high quality materials
* Each package contains a pair of fully tested and matched 6K4 vacuum tubes.
* Replaces 7-pin 5654/6AK5/6AK5W/6Zh1P/6J1/6J1P tube. It can directly replace WE-403A/403B/EF95 and ordinary 5654. And can be used to replace the built-in equipment of 6J2/6J3/6J4/6J5/6K5.
* These 6K4 tubes show you the difference between natural sound reproduction and simple music. They sound clearer, with an emphasis on clar ity, a larger soundstage, and more pronounced bass response. Hear the difference and enjoy the music.
* High reliability and stability. High fidelity soft sound with low noise.
* The sound field is fuller and wider. Highs are smoother, bass is clearer and more pronounced, and more complex music is heard with greater.
* NOTE: Replacing the wrong type of tube may damage your. If you are unsure whether this 6K4 can be used as a replacement for your audio equipment, please consult your manufacturer.

Specification:
Model: 6K4
Type: electronic tube
material: metal
Color: transparent
Quantity: 2 pieces
Packing size: 7.5*5.5*2.5cm/ 3.0*2.2*1.0in
Packaging weight: 30g/1.1oz

Package Included:
2 x tubes

Note:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight manual measurement deviation for the data.