Positive Grid has announced its Spark NEO Core, the newest member of the Spark NEO family of smart guitar headphones.

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 ...

While it's good fun to jam out on the guitar with a powerful amp, unless you have a soundproof room or live on your own out ...