The Plexi MkII is a modern interpretation of the classic Marshall Plexi amplifier, known for its raw, vintage rock tone. It typically features EL34 power tubes and has a distinct sound characterized by its high-gain overdrive and aggressive midrange.
On the other hand, the Tube Town PX18 kit is based on a different amplifier design and may have its own characteristics and tonal qualities. Without specific details about the modifications you're considering or the differences between the Tube Town PX18 and the Plexi MkII, it's challenging to provide a precise answer.
scratch geometry dashHowever, if you're interested in incorporating elements of the Plexi MkII into your Tube Town PX18 build, you may be able to achieve a similar tone and vibe with the right modifications. This could involve selecting appropriate components, tweaking the circuit design, or adjusting the amplifier settings to emulate the Plexi MkII's sound.