JBL BandBox Trio Portable AI-Powered Practice Amp / Speaker

JBL's BandBox Trio is a 135–watt portable practice amp and speaker engineered for musicians who need a complete band simulation without the band. The standout feature is its AI–powered Stem Separation technology, which isolates vocals, drums, and instruments in real time from any streamed track, letting you practice or perform over a customised backing track. A 6.5" woofer paired with dual tweeters delivers the JBL sound signature in a compact form factor built for busking, bedroom sessions, and small venues.

The 4–channel mixer features a colour LCD screen with mid–song control for guitars, mics, keyboards, and electronic drums. Built–in amp models span clean to distorted tones, while the effects library includes phaser, chorus, and reverb. Additional tools include a tuner, metronome, drum machine with presets, looper, pitch shifter, and key adjustment. USB–C output connects directly to a DAW for recording; the internal battery delivers up to 10 hours of playtime. Control everything via the JBL One app, adjusting EQ, effects chains, and AI stem parameters without touching the hardware.

The combination of real–time stem separation and a built–in audio interface makes this unit distinct for bedroom producers capturing ideas directly, and for gigging musicians who need tonal control and practice features in a single portable solution. No external pedals, no separate interface, no compromise on core practice functionality.

Features

• AI Stem Separation isolates vocals, drums, instruments in real time
• 135 watts, 6.5" woofer, dual tweeters, JBL audio signature
• 4–channel mixer with colour LCD screen and four audio inputs
• Amp models and effects: reverb, delay, phaser, chorus, distortion
• Built–in tuner, metronome, drum machine, looper, pitch shifter
• USB–C audio interface for direct DAW recording and control
• 10–hour battery life with optional spare battery support
• JBL One app controls tone, EQ, effects chains, and AI settings