Roland CUBE-ST-MI CUBE Street Mini Multi-Instrument Amplifier

The Roland CUBE Street Mini is an ultra-compact, battery-powered multi-instrument amplifier designed for small performances, practice sessions, and mobile setups. It combines instrument, microphone, and Bluetooth audio support in one portable unit, helping solo performers and duos avoid carrying separate amps and small PA components. Its two-channel layout allows a vocalist and instrumentalist to perform through the same amplifier.

A 2.1 speaker system with a 5-inch woofer and two 0.5-inch tweeters provides stereo-oriented playback and wide sound dispersion for intimate spaces. The rated output is 10 watts total, divided as 5 watts plus 5 watts. This makes the CUBE Street Mini suited to cafés, small events, personal studios, and portable rehearsal use rather than large-room reinforcement.

The GUITAR/MIC/INST channel accepts mono or stereo sources through dual 1/4-inch inputs and offers selectable sound types for different sources. A dedicated MIC channel uses a balanced XLR/1/4-inch TRS combo jack for a dynamic microphone. Independent volume and tone controls allow each connected source to be adjusted separately.

Built-in effects reduce the need for extra processing in a compact setup. The main channel provides reverb, chorus, and delay selections, while the microphone channel provides reverb and echo. An onboard tuner with panel indicators supports quick guitar tuning, and Bluetooth 5.2 audio lets a compatible mobile device stream backing tracks without occupying an instrument input.

The rechargeable nickel-metal hydride battery runs for approximately seven hours under continuous use and charges through the USB-C power input. The amplifier can also be tilted upward with its integrated stand or mounted on a mic stand to improve projection. A stereo PHONES/REC OUT jack supports private listening or connection to a recorder, while the optional CB-MBC1 carrying case adds a dedicated transport option.

Key Features

• Dual-Channel Layout: Connect an instrument and dynamic microphone at the same time.
• 2.1 Speaker System: Combines one woofer with two tweeters for broad projection.
• Rechargeable Battery: Delivers approximately seven hours of continuous operation.
• Bluetooth 5.2 Audio: Streams backing tracks from compatible mobile devices.
• Independent Effects: Adds reverb, delay, chorus, or echo without external pedals.
• Tilt Stand and Mic Mount: Helps direct sound upward for flexible placement.

Design & Installation

The CUBE Street Mini uses a compact portable amplifier enclosure with an integrated handle, strap, tilt stand, and mic stand mount. Roland does not publish cabinet-material specifications, but the unit is designed around a small-footprint 2.1 speaker layout. It measures 10-25/32 inches wide by 4-11/32 inches deep by 7-9/16 inches high without the tilt stand in use and weighs 4.85 pounds including its strap.

For setup, connect a dynamic microphone to the balanced MIC combo jack and connect guitar, keyboard, Aerophone, or another compatible source to the GUITAR/MIC/INST inputs. Use the L (MONO) input for a single mono source, or use both L and R inputs for a stereo source; condenser microphones requiring phantom power are not supported. Charge the internal battery with the included USB-C to USB-A cable and a computer USB port or a separately sourced 5 V, 2 A or higher USB power adapter.