Big Sound, Tiny Package — Positive Grid Spark GO Your guitar doesn't take a day off, so why should your amp? The Positive Grid Spark GO is the kind of thing you toss in a backpack, grab on the way out the door, and forget you're even carrying — until you pull it out and everyone in the room does a double-take at how much sound is coming out of something smaller than a paperback novel. It stands less than four inches tall, runs on a rechargeable battery, and fits in the palm of your hand. But here's the thing: this isn't a toy amp or a stripped-down travel novelty. It carries the same Spark software DNA as Positive Grid's larger amps — 33 amp models, 43 effects, four onboard preset slots, and full access to the Spark app ecosystem. Whether you plug in an electric, an acoustic-electric, or a bass, the Spark GO handles it all with a custom-designed 2-inch speaker powered by Positive Grid's computational audio technology that's engineered to deliver a fuller, more detailed response than the hardware alone would suggest. If you've ever wished you could bring a real practice setup everywhere — hotel rooms, backstage, the back porch, a friend's place — the Spark GO makes that genuinely possible without hauling a gig bag full of gear. A Complete Amp in Your Pocket The Spark GO runs 5 watts through a single custom-designed 2-inch speaker using a Class D amplifier and passive radiator cabinet design. Positive Grid's computational audio technology works behind the scenes to push the acoustics of that small enclosure further than you'd expect, delivering a full-range sound with real depth for home practice, warm-ups, or casual playing anywhere. Four onboard preset slots sit right on top of the amp for quick access — no app required to switch between your favorite tones. When you do have your phone handy, the Spark app for iOS and Android connects over Bluetooth 5.0 and opens up the full library of 33 amp models and 43 effects, plus over 50,000 user-created patches available on ToneCloud. Custom presets you've already dialed in on a larger Spark amp can be loaded directly onto the GO through the app. The built-in tuner with LED display handles both guitar and bass, and Smart EQ lets you optimize the output for your specific instrument or for music playback. For quiet practice, the 1/8" headphone output supports stereo monitoring — a noticeably different experience from the mono speaker output. Smart Features That Actually Make You Play More The Spark GO connects to Positive Grid's AI-powered Smart Jam, which listens to your playing style and generates drum and bass backing tracks on the fly. Auto Chords analyzes songs in real time and displays the chords as you play along — handy for learning new material without stopping to look things up. These aren't gimmicks bolted onto a practice amp; they're the same tools that made the original Spark a standout, now in a form factor that fits on your pedal board or in your jacket pocket. Bluetooth audio streaming means the Spark GO doubles as a full-range Bluetooth speaker for music playback. You can jam along to your own music while listening — the Guitar Volume and Music Volume controls are separate, so you can dial in the mix without fussing with your phone. The amp is also compatible with Spark Control, Positive Grid's wireless footswitch, for hands-free preset switching if your rig grows beyond the four onboard slots. Built-In Audio Interface and Battery Power Plug the Spark GO into a computer via USB-C and it becomes a 1-in/2-out audio interface running at 44.1kHz, 16-bit — straightforward and functional for laying down demos or practicing with software. No additional interface hardware needed; the amp models and effects you've set up carry directly into your DAW recording chain. The built-in 2500mAh rechargeable lithium-ion battery powers the unit for up to 8 hours at mid volume or lower, and charges via USB-C. That's compatible with most standard mobile USB-C chargers, so you're not hunting for a proprietary adapter. The 1/4" guitar input and 1/8" headphone/line output round out the connectivity, keeping things clean and simple for a unit this size. Product Features: Wattage: 5 watts via Class D amplifier Speaker: 1 x 2" custom-designed speaker with passive radiator cabinet design Amp Models & Effects: 33 amp models and 43 effects onboard (Noise Gate, Compressor, Distortion, Modulation/EQ, Delay, Reverb) Onboard Presets: 4 fully customizable preset slots accessible directly on the amp Spark App: Full iOS and Android app integration with Smart Jam, Auto Chords, and 50,000+ ToneCloud patches via Bluetooth 5.0 Audio Interface: USB-C audio interface, 1-in/2-out, 44.1kHz/16-bit — compatible with macOS and Windows Battery: Built-in 2500mAh rechargeable lithium-ion battery, up to 8 hours playtime, USB-C charging Connectivity: 1/4" guitar input, 1/8" headphone/line output (stereo), Bluetooth 5.0 audio streaming Tuner: Built-in guitar/bass tuner with LED display Footswitch Compatible: Works with Spark Control for wireless preset and effects switching Compatible instruments: Electric guitar, acoustic-electric guitar, and bass Brand: Positive Grid Model: Spark GO SKU: SPARK GO Condition: New Since 1872, C.A. 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