Hello - Have just ordered my first CBG kit and am really pumped to build it. Have been doodling on blues on guitars and am looking at the 3 string as another way to play some blues. Back in my salad days I was a designer of high speed logic boards (motherboards) for over a decade. So I do know which end of a resistor to use but all that time and work was pure digital. So I am really re-schooling my self on this amazing and weird analog stuff. Certainly looking to learn a lot and or give some help. 

I've beed working on mainly low power amps to just over a watt or so. And I do have a rough circuit that can drive a Fender or Marshall tone stack. So I want to take some of this and make a cigar box amp. SO my question is are there preferred sources - brands for 4" or 5" speakers ?

Finally - just starting to look at ordering some JRC2073 which look to have more wattage than LM386s. Has anyone used these --- I know that they are used in CB Gitty's 2.5 amp module.