Прочие устройства — JBL BandBox Solo

The BandBox Solo is the smaller of two AI-powered practice amps from JBL, the HARMAN International brand, positioned below the four-channel BandBox Trio. It combines a guitar or vocal amplifier, a Bluetooth music speaker and a USB audio interface in a battery-powered box, and its Stem AI function splits streamed songs into separate parts so a player can remove one part and perform it live over the rest.

Key specs that matter

A single 57 mm full-range transducer is driven by 18 W RMS, measured to IEC 60268 at under 1 percent THD+N. The frequency response runs from 73 Hz to 20 kHz at -6 dB, and JBL states more than 80 dB of signal-to-noise ratio. A 17 Wh lithium-ion battery (3.6 V, 4,722 mAh) plays music for up to 6 hours and recharges in 3.5 hours with the unit switched off, drawing a maximum of 5 V at 3 A. The cabinet measures 150 x 87 x 55 mm and weighs 0.53 kg.

Engineering and use context

A single 6.35 mm TRS jack accepts either a guitar (100 mV rms sensitivity) or an external microphone (20 mV rms). A 3.5 mm output feeds headphones of 16 or 32 ohm at up to 1 Vrms, and the same port can send the signal to a mixer or PA system when more level is needed. Plugging headphones in activates a built-in microphone, so a singing guitarist can practise silently or stream a live webcast. The USB-C port charges the unit, plays music from a phone or computer and records to a UAC-compatible device as 2-channel PCM at 48 kHz and 24 bit. Bluetooth 5.4 supports A2DP 1.4 and AVRCP 1.6 with multi-point pairing of two devices, and the display also indicates Auracast party sessions. On the unit, Stem AI separates guitar, vocal and other stems, each of which can be muted or rebalanced, and a long press inverts the settings so only the guitar drops out. Guitar presets are chosen with a single rotary knob, and the menu adds a tuner, a metronome from 30 to 240 BPM and a 60-second looper with overdub. Further effect chains, drum separation and a karaoke mode are unlocked through the JBL ONE app, and software updates are installed the same way. The unit powers down after 20 minutes of inactivity.

Pairing

Electric guitars and microphones plug straight into the instrument input, while backing tracks come in wirelessly or through the USB-C cable from a handset or a computer running a DAW. For rehearsals that need more volume, the headphone output connects to a larger powered speaker or a mixing desk.

Alternatives

JBL also builds the BandBox Trio, a four-channel practice amp and speaker with 135 W RMS and a replaceable battery.