In case you want to replace the power supply, Amazon has a good one for $18: https://www.amazon.com/gp/product/B07Z4T115Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 Just an fyi....that particular unit was sold out, so I ended up getting a different one with the same voltage, current, pola...

I've also noticed that the DC plug doesn't seat very well in the jack. It feels very loose. Has anyone else noticed that?

Trying to wrap my head around the distinction between Output volume and Master volume. I realize the Master actually changes the modeled amps volume, so I'm think the Output volume would be like a volume pedal at the end of the chain. Does that sound right?