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Positive Grid Spark Mini PW — 10 W Portable Smart Modeling Combo

The Positive Grid Spark Mini PW is a battery-powered modeling combo designed for guitarists who want studio-grade tone, Bluetooth playback, and practice tools in a single grab-and-go enclosure. At just 1.5 kg and 146.5 x 123 x 165 mm, this model slips into a backpack yet still pushes a stereo image through two angled 2" custom speakers and a passive radiator. The Positive Grid Spark Mini PW is the right choice for players who want a desk-friendly amp that doubles as a Bluetooth speaker and USB audio interface without sacrificing real amp feel.

What makes the Spark Mini PW stand out in the smart-amp category

Inside the cabinet, a 10 W Class D amplifier drives the stereo speaker array to a measured 90 dB SPL at 1 m, defying expectations for a unit this compact. The Spark App unlocks machine-learning Smart Jam, which listens to incoming guitar signal and generates matching bass and drum backing tracks in real time. Auto Chords reads millions of songs from streaming services and displays chord shapes and tempo controls on screen, turning any YouTube video into a structured practice session.

Sound engine and effects — modeling power in a mini combo

The modeling engine is built on the multi-award-winning Positive Grid BIAS FX 2 platform, the same technology behind the larger Spark 40. Players get boutique-to-modern amp voicings with realistic touch-controlled knobs in the app, plus a deep effects chain that covers every essential stage of a guitar signal.

• Amp Models: 33 onboard — clean, crunch, and high-gain voicings from vintage to modern
• Effects: 43 onboard — Noise Gate, Compressor, Distortion, Modulation/EQ, Delay, and Reverb, all editable per preset
• ToneCloud Library: 100,000+ community presets downloadable directly into the four hardware preset slots

Speakers, power, and battery — portable rig specifications

Precision-engineered acoustics are the heart of this amp's "small but mighty" reputation. Two custom 2" speakers are angled for a vivid near-field stereo image, while the passive radiator pumps out omnidirectional bass that gives clean tones body and high-gain riffs weight. The integrated lithium-ion battery frees the rig from wall power for an entire practice day.

• Power Output: 10 W Class D with 4 Ohm total impedance
• Speakers: 2x 2" custom drivers + 1 passive radiator in a stereo configuration
• Battery: 3,000 mAh rechargeable lithium-ion, up to 8 hours of playtime at mid volume, 3-hour USB-C charge
• Weight: 1.5 kg with reversible faux-leather carrying strap included

Connectivity and on-board controls — practice, record, and stream

Wired and wireless I/O cover every modern playing scenario, from silent headphone sessions to computer-based recording. The top panel keeps operation intuitive with dedicated volume knobs for the guitar and music channels, while the rear panel handles power and Bluetooth pairing.

• Wireless: Bluetooth 5.0 for audio streaming and app communication
• Wired I/O: 1/4" guitar input, 1/8" aux input, 1/8" headphone/line output, USB-C
• USB Audio: 1 In / 2 Out, 44.1 kHz, 16-bit for direct recording into any DAW
• Top Panel: 4 programmable preset selector, Guitar Volume, Music Volume

Who the Spark Mini PW is built for

Apartment dwellers, traveling musicians, and bedroom producers will find the most value in this rig because it replaces three separate devices — practice amp, Bluetooth speaker, and USB audio interface — with one battery-powered unit. The Spark Mini PW is the right choice for beginners who want guided practice through Auto Chords and Smart Jam, as well as experienced players who need a reliable travel companion that still delivers authentic tube-style modeling. Bassists and acoustic guitarists benefit too, since the speaker array and effect chain handle low-end rumble and dynamic acoustic pickup signals with equal confidence.

Positive Grid — a San Diego smart-amp innovator

Positive Grid was founded in San Diego in 2013 with a mission to bridge mobile technology and traditional guitar gear. The company's BIAS FX 2 amp and effects modeling platform became an industry benchmark, and the Spark series translated that engine into hardware amps that pair with smartphones. The Spark Mini PW continues that philosophy by combining the BIAS FX 2 sound engine, app-driven learning tools, and battery-powered portability into one of the most compact smart amps on the market today.