JBL's new BandBox Solo and BandBox Trio are practice amps with built-in Stem AI, which can strip vocals or instruments from any Bluetooth track. A guitarist could remove Jimmy Page's solo from 'Stairway to Heaven' to play along with the rest of the band. The Solo ($250) has one input, while the Trio ($600) supports four instruments and includes an LCD screen and more onboard controls.

The JBL One app provides filters for modern and vintage amp models, plus effects like phaser, chorus, and reverb. A pitch shifter, tuner, and looper are also included, though the looper arrives via a software update in October. The Solo offers six hours of battery life; the Trio provides ten hours with a replaceable battery, doubling playtime with a spare.

Pre-orders are live now on JBL's website, with shipments to retailers scheduled for March 1. This move follows a broader industry trend of embedding AI into consumer audio gear, aiming to simplify learning and practice for musicians. It positions JBL as a competitor to standalone practice tools and streaming services that offer backing tracks.