The 12AX7C Preamp Tube is offered from China, featuring a warm, round, and fat tone - not too bright. The 12AX7C is great for Marshalls and Fenders, while its sweet, warm midrange tone complements the tonal properties of European amps. This tube takes some of the edge off of high gain amps by reducing the brightness while still having the gain and articulation. It's ideal for those who change first stage gain preamp tubes to change the taste and character of their amps. This is one tube that should be in your basic toolbox.