Matched Pair Psvane EL84-T Mark II Vacuum Tube EL84-T II Premium Grade (2pcs) 1. By virtue of its smart design of power turbo, the electron current density within the vacuum tube reaches up to the maximum value so that the energy, dynamic performance and saturation of voice can be greatly improved. 2. The method of aluminum base oxidization is used for coloring to make sure it will never change color or discolor. 3. It adopts the completely new gold plated base pin so that the contact performance at the connection part can be much better, thus the loss of small-signal can be reduced to the minimum level. 4. The use of carbon crystal technology has greatly improved the stability of electrical property under the condition of working or even ultimate limit within the vacuum tube. Packaged includes: Matched pair PSVANE EL84-T Mark Vacuum Tube2pcs