Vox Ac 30 Circuit Modifications

The Vox AC30 is one of the most iconic and beloved guitar amplifiers ever made. It’s known for its warm, tube-driven sound, and has been used by some of the biggest names in music, from The Beatles to Brian May of Queen. But what many people don’t know is that it’s also highly modifiable. With a few tweaks and modifications, you can completely alter the tone of your Vox AC30, taking it from a classic vintage sound to something more modern and unique.

If you’re looking to modify your Vox AC30, there are a few circuit modifications you can make to achieve a whole new sound. One of the most popular changes involves swapping out the stock preamp tubes for higher-gain versions, such as ECC83 or 12AX7 tubes. This will give your amp a thicker, more distorted sound. Additionally, adding a pull bright switch can help bring out the upper-mids, giving your amp a brighter, clearer tone.

Another popular modification is to replace the tone stack. This is the set of components that control the frequency response of your amp. Replacing the tone stack with one from a different model can give your amp a totally different character. For example, a Marshall tone stack will give your Vox a more modern, aggressive sound, while a Fender tone stack will give you a classic, bluesy tone.

Finally, you can also modify the power section of your amp. Replacing the stock power transformer with a larger one will give you more headroom and volume. You can also install an adjustable bias pot, which will allow you to adjust the bias of the tubes and achieve different tones.

These are just a few of the modifications you can make to your Vox AC30. With a few simple tweaks, you can completely transform the tone of your amp and create something truly unique. So if you’re looking to get more out of your Vox AC30, consider trying out some of these circuit modifications!

Vox Vintage Circuit Diagrams