How to change a Peavey Classic 30 Tube Amplifier

By | April 11, 2021

To change a Peavey Classic 30 Tube Amplifier


Replace the standard speaker with a higher quality speaker or one that is more to your liking. Manufacturers of high quality speakers include Weber, Celestion and For a review of popular speakers, check out To hear samples of Weber speakers, go to;search_query=weber+speakeru0026amp;aq=f.


Replace the tubes in the amplifier. Most new Peavey Classic 30 amplifiers come with Sovtek tubes which are generally considered to be of average quality only. Although the choice of tubes is very personal, several manufacturers are known among guitar players for making good tubes. Check out for new tubes, and for high quality vintage tubes.


Open the amplifier and make the circuit board visible. You do not need to remove the circuit board. Locate the .022uf base cap, which will be clearly marked on the circuit board, and use the soldering line to remove it. Replace it with a .047uf lid with your soldering iron. This increases your bass response.


Use the soldering line by removing the .022 uf intermediate gap cover. Replace it with a .022 uf lid with your soldering iron. This well increases your overall middle class.


Remove the 470 pf cover from the overdrive circuit, which will be clearly marked on the circuit board with solder paper. Replace it with an 820 pf mica cap. This will help reduce the loudness of the exaggerated sound in this amplifier, as it allows more bass to get through.

Tips and warnings

  • Do not try to make the more complicated modifications presented here if you have never worked with electronics or amplifiers of this type before. You can permanently damage the amplifier.
  • Changing your Peavey Classic 30 tube amplifier may seem like an almost impossible task at first. However, there are some simple things you can do to improve the tone and performance of a Peavey Classic 30 layer. Although several of the modifications presented here are very simple, others are not, and require you to have a fairly sophisticated knowledge of the components. in your amplifier and the processes used to modify them.