Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Looking very much like the ...

As this is a Spark amp, there's a whole other control experience to be accessed with that smartphone / tablet Spark app. But like the other Spark amps, how deeply you want to get involved in that side ...

We may receive a commission on purchases made from links. Many popular musicians work with brands to create signature models of guitars and amps, but rarely are they so accessible as the Positive Grid ...