Powered amps for electric guitars have gotten some neat tricks powered by modern mobile tech over the years, but the new Positive Grid Spark ($299) might be the one that packs the most intelligence ...

At this point, there are basically two kinds of guitar amps: old-school tube amps and modern digital amps that do their damnedest to recreate tube amps. The Positive Grid Spark is decidedly the latter ...

Easy to use. Clean, classic design. Sounds great and is reasonably loud. Affordable. Thousands of sound presets, play-alongs, and tips inside the Positive Grid app. Only eight hours of battery life.

Look, practicing guitar can get pretty boring — especially if you’re still plucking away at your beginner guitar and basic practice amp. Unless you want to spend hundreds (or thousands) of dollars on ...

Every noodler needs to practice. But waiting for others in the house to go out for the day so you can crank up the amp can be frustrating. That's where the Positive Grid Spark Neo comes in, which puts ...