Package: 1 Pair 6A2 Vacuum Tube Channels: 2 (2.0) Model Number: 6A2 Type: Tube Amplifier Name: Aiyima Origin: Mainland China Certification: NONE Maximum Power Per Channel: Not Applicable 6A2 tube vacuum tubes. Replacement for 7-pin 5654/6K4/6AK5/6AK5W/6Zh1P/6J1/6J1P tubes. Directly replaces WE-403A/403B/EF95 and standard 5654. Compatible as a replacement in devices using 6J2/6J3/6J4/6J5/6K5. These 6A2 tubes deliver natural voice reproduction and musical clarity. Offers improved clarity, wider soundstage, and enhanced bass response. High reliability and stability with low noise performance. Produces a fuller, more expansive soundstage with smoother treble and clearer, more pronounced bass. Complex audio passages are well defined and detailed. Note: Replacing the wrong type of tube may damage your amplifier or preamp. If unsure whether the 6A2 is compatible with your device, consult the amplifier or preamp manufacturer before use.