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Positive Grid Spark Mini BK — Portable Smart Amp with Studio-Grade Modeling

The Positive Grid Spark Mini BK redefines the capabilities of a practice amp, fitting a 10-watt Class D power section, two 2" (50.8 mm) custom speakers, and a passive radiator into a lightweight 1.5 kg cabinet. Modeling power is delivered through 33 amp models and 43 onboard effects, while Bluetooth 5.0 streaming and USB audio interface expand its versatility. For guitarists seeking authentic tones and silent practice, this compact combo delivers without the size of a traditional amp.

Smart App Integration and AI-Powered Practice Tools

What sets this model apart is its integration with the Spark app, offering Smart Jam machine-learning backing tracks, real-time auto-chord display, and AI-generated tones. Players can explore more than 100,000 user-created ToneCloud presets, and content creators benefit from the built-in video capture feature for recording performances directly in the app.

Modeling Power — 33 Amps and 43 Effects in a 1.5 kg Box

The sound engine provides a wide palette for musicians on the move. Expect clean, crunch, and high-gain voicings based on boutique and modern amp types, with four onboard preset slots for fast tone switching.

• Amp Models: 33 onboard — covers clean, blues, crunch, and high-gain tones for electric, bass, and acoustic
• Effects: 43 pedals — includes noise gate, compressor, distortion, modulation/EQ, delay, and reverb per preset
• Access your favorite settings instantly by assigning custom tones to four programmable preset slots for real-time performance flexibility.

Hardware — Class D Amplifier, Custom Speakers, and Full I/O

Carefully selected components extract clarity and depth from a small enclosure. Stereo playback, passive radiator, and 4-ohm impedance add sonic depth to the cabinet's footprint.

• Power Amplifier: 10 W Class D — efficient output stage, up to 90 dB SPL at 1 m
• Speakers: Two 2" (50.8 mm) custom drivers + passive radiator — delivers stereo imaging with extended bass
• USB Audio: 1 In / 2 Out, 44.1 kHz / 16-bit — plug-and-play interface for any DAW

Wireless Streaming and All-Day Battery Life

No more cable clutter thanks to Bluetooth connectivity and a rechargeable battery, making this amp a versatile solution for travel, outdoor sessions, and late-night practice.

• Bluetooth: 5.0 — streams music from phone, tablet, or computer
• Battery: 3,000 mAh rechargeable lithium-ion — up to 8 hours of play time at mid volume or lower
• Convenient USB-C charging means you can use most mobile chargers to power up in about 3 hours.

Bedroom Players, Travelers, and Content Creators

This amp is ideal for musicians wanting authentic modeling tones, silent headphone practice, and portable Bluetooth streaming. Beginners will find the auto-chord display and backing tracks helpful for learning, while content creators can easily record performances with the Spark app. Carrying weight of 1.5 kg and 8-hour battery life ensure it’s ready for travel or home use.

Positive Grid — Smart Amp Innovation

Known for blending modeling technology with mobile ecosystems, Positive Grid’s most portable amp is designed for flexibility and creativity. The ToneCloud library, with over 100,000 user-shared presets, along with signature collaborations, demonstrates its commitment to innovation in the modeling amp market.