For just noodling around, it will be probably be easiest to use the 2 x 10 I built for my Vibro Champ, since it is light, and I have attached a 6 foot 16 gauge cable with a 1/4 inch plug to the speaker terminals. That's what I had connected when the amp was on my bench for biasing, testing, etc.
If you remember from last fall, that's the one I attached the new grill cloth with the wrong side facing out.![]()