Sub Tweed Preamp - with signal cap upgrade

Another EXCELLENT option we offer: if you are purchasing a signal cap upgrade and want to install the tweed preamp mod in place of the stock first channel, you can substitute the proper caps for the mod! You get the entire tweed preamp mod in place of the caps that would normally be used for the stock first channel. We give you the same type of caps you order for the signal cap upgrae. Includes the other small parts in the mod…