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Groove Tubes Silver Series ST-12AX7-C Preamp Tube

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The Groove Tubes Silver Series ST-12AX7-C Preamp Tube is for those who change first stage gain preamp tubes to change the taste and character of their amps. A Chinese version of the 12AX7-C. Great for Marshall and Fender preamps. Sweet warm mid-range tone that complements the tone of European amplifiers. This Groove Tube takes some of the edge off of high gain amps by reducing the brightness while still having the gain and articulation. This is one tube that should be in your basic toolbox. The basic tube sets generally are the 12AX7C, ECC83, and 7025 to cover a wide range of styles and tastes for most amplifiers.

Country of origin: China


  • Groove Tubes Silver Series are tested and warranted to meet or exceed factory specifications.
  • Silver Series tubes are excellent for "normal" tube replacement applications and offer exceptional value.
  • Not recommended for the critical high gain V1 stages of high gain guitar amps, but perfect for the other less critical stages such as V2-V6 stages.
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