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Reviews & ArticlesWhat is tube amp bias?AMPLIFIER TUBESMesa Boogie Tube Kit - Express 5:25 Amplifier
Mesa Boogie Tube Kit - Express 5:25 Amplifier
This
is a Tube Kit designed to replace all of the tubes in your Mesa Boogie
Express 5:25 Head or Combo.
The Express 5:25 Kit includes:
2x MESA EL-84 Tubes - 6BQ5 EL84
5x MESA 12AX7 Preamp Tubes
Also available are the SPAX7 Premium Grade Preamp Tube upgrade for an additional $20.00
MESA SPAX7 preamp tubes are a low noise super-premium grade substitute for any 12AX7 positions - They are a "Special Requirement Preamp Tube" that possess an even higher standard of overall performance, due to their incredibly low sensitivity to microphonic noise - This is the ultimate preamp tube to use in all critical gain stage positions - It is the absolute best of the best!
The Express 5:25 Kit includes:
2x MESA EL-84 Tubes - 6BQ5 EL84
5x MESA 12AX7 Preamp Tubes
Also available are the SPAX7 Premium Grade Preamp Tube upgrade for an additional $20.00
MESA SPAX7 preamp tubes are a low noise super-premium grade substitute for any 12AX7 positions - They are a "Special Requirement Preamp Tube" that possess an even higher standard of overall performance, due to their incredibly low sensitivity to microphonic noise - This is the ultimate preamp tube to use in all critical gain stage positions - It is the absolute best of the best!
