Yamaha’s tiny wireless guitar amp gets everything right but the price

With the original THR line of guitar amps, Yamaha basically invented a new product category: the connected desktop amplifier. It filled a need that honestly many guitar players didn't even realize they had. These amplifiers are small enough to sit on...

Positive Grid’s Spark amp helps you learn and jam to your favorite songs

Guitar amps are getting more connected and more flexible. Boss' latest Katana offerings simulates 10 different amp models and 60 effects. While Yamaha's THR line features a rechargeable battery and wireless connectivity. Positive Grid is taking thing...