The speakers are wired to a simple aux jack and ... [Olson] seems to be using an external power supply for this mini-amp; but before you count that as a mark against this build, the music you ...

Boss has expanded its Katana series with a take-anywhere 10-watt guitar amp ... 5” speaker, but promises “full-bodied” electric guitar tones. We say electric but the Katana-Mini X will ...