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Positive Grid Spark 2 BK — 50W Smart Practice Amp with HD Modeling

The Positive Grid Spark 2 BK is a 50-watt smart guitar amp featuring a dedicated computational audio chip and Sonic IQ processing. HD amp-modeling and AI tone generation combine with a groove looper, delivering 25% more volume than the original Spark in a 5.5 kg package. Features in the Spark app include Smart Jam, Auto Chords, and Spark AI Beta.

What Sets the Spark 2 Apart

While most practice amps stop at modeling, this model adds Sonic IQ Computational Audio for real-time dynamic range compression, virtual bass boost, stereo widening, and Auto EQ. The onboard groove looper offers up to 60 seconds of recording with a huge variety of genre drum tracks, and Spark AI Beta translates plain-language tone requests into matching presets.

Amplifier Power and Speaker Design

In any amp that doubles as a small-room rig, power and projection can be crucial. Clean headroom is provided by the Class D amplifier, while the dual speakers are specifically angled for a broad stereo field rather than a mono focus.

• Power Output: 50 W RMS Class D — fills a small rehearsal room without breakup.
• Speakers: 2 x 4-inch full-range with 10° angled horn — gives a wider stereo spread than the previous flat baffle.
• Thanks to the bass reflex cabinet with two reflex ports, the amp achieves a full response down to 20 Hz for rich bass presence.

Wired and Wireless Connectivity

Phones, computers, and headphones are part of most practice routines, not just guitars. The Spark 2 BK supports every standard connection, and an optional battery makes it a truly portable amp.

• Instrument Input: 1/4" (6.3 mm) jack — conveniently front-mounted for quick cable swaps.
• Headphone Output: 1/8" (3.5 mm) jack — with upgraded circuitry for silent practice.
• Wireless: Bluetooth 5.0 streaming and USB-C audio interface (24-bit / 44.1 kHz) — jam along and record straight into your DAW.
• With the optional 6,000 mAh lithium-ion battery, musicians can play outdoors or backstage for up to 12 hours.

Tone Engine, Effects, and Onboard Controls

The HD DSP tone engine doubles the processing power of the original. With a single-channel signal path, the top panel remains intuitive and all essential controls are directly accessible without using the app.

• Amp Models: 33 HD models — covers electric, acoustic, and bass needs in one library.
• Effects: 43 effects including noise gate, compressor, distortion, modulation, EQ, delay, and reverb — up to 3 pre-amp and 3 post-amp effects per preset can be chained.
• Saving up to 8 customizable presets on the amp makes switching tones simple and fast via the dual-bank Preset Selector.

Who Should Buy the Spark 2 BK

Guitarists seeking a versatile amp for practice, recording, or small gigs find what they need here without extra pedals. Bedroom musicians enjoy silent headphone output and Smart Jam tracks, while advanced players can explore everything from jazz fusion to djent. Bassists and acoustic players are included, with tailored voicings among the 33 amp models.

Positive Grid and the Evolution of the Smart Amp

Positive Grid made its mark transforming the practice amp into an app-driven instrument. The original Spark defined a new smart amp category, and this model amplifies the formula with double the DSP power, a new speaker array, and an integrated looper. Endorsements from Nuno Bettencourt, Jake Bowen, and Paul Gilbert add professional credibility.