The Spark 2 from Positive Grid looks like a miniature old-school amp, but it is, essentially, a computer with some knobs and a speaker. It has Bluetooth, USB-C, and an associated smartphone app. It ...
I have a Spark 2 and a Spark Mini. Both are great, and with a cheap wireless transmitter cable-free playing is a nice option. (The Boss Waza Air sounds better, in my opinion, but those also are ...