Roland CUBE Street EX Battery-Powered 50W Stereo Amplifier

The Roland CUBE Street EX battery-powered amplifier delivers up to 50 watts of stereo output running entirely on eight AA batteries, with three selectable power modes that extend runtime up to 20 hours in Eco mode. Dual 8-inch woofers and 2-inch tweeters provide clear, full-range projection suited for street performance, small stages, and outdoor venues — no AC outlet required.

For buskers and traveling musicians comparing the best battery-powered amp for street performance, the CUBE Street EX stands apart with its four independent channels, each featuring dedicated three-band EQ and reverb control. The amp handles a portable amplifier setup for guitar and microphone simultaneously, supporting two XLR vocal inputs alongside instrument and line connections. COSM amp modeling — Clean, Crunch, and Lead for electric guitar, plus Acoustic Simulator — means players get dialed-in guitar tones without carrying additional gear.

The CUBE Street EX also functions as a compact PA system for duo or small ensemble performances. Two units can be linked via the Stereo Link jacks to double the input count to eight channels and expand sound coverage. The angled rear cabinet doubles as a stage monitor wedge, and an optional ST-A95 speaker stand mount raises the unit for broader throw. Roland's i-CUBE Link interface connects iOS devices for backing track playback and live recording via the free CUBE JAM app — extending the amp's value well beyond a standard portable PA.

Key Features of the Roland CUBE Street EX Portable Amplifier

• 50W Stereo Battery Power: Delivers 50 watts of stereo output (25W + 25W) from eight AA batteries using Roland's proprietary power circuitry — a power level unmatched among battery-only portable amplifiers.
• Three Selectable Power Modes: Max (50W/~5 hrs), Normal (25W/~10 hrs), and Eco (10W/~20 hrs) modes let performers balance projection against battery runtime for any performance situation.
• Four Independent Channels with EQ and Reverb: Onboard mixer with two XLR/TRS combo inputs, a stereo 1/4-inch Line In, and a 1/8-inch Audio In channel enables full-band connectivity with per-channel sound shaping.
• COSM Guitar Amp Modeling: Six onboard amp types — A-Guitar, Acoustic Sim, Clean, Crunch, Lead, and Mic — provide professional guitar and vocal tones without external effects units or preamps.
• Stereo Link Expansion: Connect two CUBE Street EX units together to create a stereo PA system with up to eight inputs and double the output power — ideal for larger outdoor crowds.
• i-CUBE Link iOS Integration: Built-in 4-pole mini jack interface streams backing tracks from an iPhone or iPad and records the amp's output directly into the free CUBE JAM app.
• Durable, Lightweight ABS Cabinet: High-strength injection-molded housing passes rigorous durability testing while keeping total weight at just 16 lbs. 6 oz. for easy transport to every gig.

Technical Specifications

• Maximum Power Output: 50W (25W + 25W, stereo)
• Output Power Modes: Max (50W), Normal (25W), Eco (10W)
• Speakers: 8-inch woofers x2, 2-inch tweeters x2
• Channels: 4 independent (MIC/INSTRUMENT, MIC/GUITAR, LINE IN, AUDIO IN)
• MIC/INSTRUMENT Input: XLR/TRS combo, balanced; nominal level -50/-10 dBu
• MIC/GUITAR Input: XLR/TRS combo, unbalanced; nominal level -10 dBu
• LINE IN: 1/4-inch stereo (L/MONO, R); nominal level -10 dBu
• AUDIO IN (i-CUBE Link): 4-pole 1/8-inch mini jack; nominal level -10 dBu
• AUX IN / STEREO LINK IN: 1/4-inch phone; nominal level -10 dBu
• LINE OUT / STEREO LINK OUT: 1/4-inch phone (L/MONO, R); nominal level -10 dBu
• Headphone Output: Stereo 1/4-inch phone
• Channel EQ: 3-band (Bass, Middle, Treble) per channel
• Effects: Reverb (all channels); Chorus/Delay (MIC/GUITAR channel); built-in tuner
• COSM Amp Types: A-Guitar, Acoustic Sim, Clean, Crunch, Lead, Mic
• Footswitch Jacks: 1/4-inch TRS (REVERB on MIC/INSTRUMENT; CHORUS/DELAY + REVERB on MIC/GUITAR)
• Power Supply: AC adapter (DC 13V) or 8x AA alkaline/Ni-MH batteries
• Current Draw: 730 mA
• Battery Life - Alkaline (Max/Normal/Eco): ~4 hrs / ~8 hrs / ~16 hrs
• Battery Life - Ni-MH (Max/Normal/Eco): ~5 hrs / ~10 hrs / ~20 hrs
• Weight: 16 lbs. 6 oz. (7.4 kg)
• Dimensions (W x D x H): 19-5/16" x 13-7/16" x 12-1/16"

What's in the Box

• Roland CUBE Street EX Amplifier
• AC Adapter
• Power Cord
• Mini Cable (4-pole miniature phone type for i-CUBE Link)
• Owner's Manual