Positive Grid Spark 40 BK

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Positive Grid Spark 40 BK

Positive Grid

Spark 40 BK

4.5 Expert Rating

Product Info

Article Number: 575593
Model: Spark 40 BK
Price: $261.80

* Prices may vary. Check retailer for current pricing and availability.

The Spark 40 BK is a clever little practice amp, perfect for bedroom players and beginners who want a ton of sounds at their fingertips. The app integration is the real selling point – it's like having a massive amp collection and backing band in a tiny box. Just don’t expect it to replace a full-sized amp for serious stage work.

Product Description

  • Positive Grid Spark 40 BKSpark BK
  • Modelling Combo for Electric Guitar
  • Acoustic Guitar and Electric Bass
  • Smart guitar amplifier and app
  • With on-board control and Smart functions such as Smart Jam Live
  • Auto Chords and over 50
  • 000 sounds
  • Smart Jam: AI-generated backing tracks
  • Auto Chords: shows the chords for every Youtube video
  • Amp and effect library with over 50
  • 000 variations
  • growing daily
  • Channels: 1
  • Power: 40 watts
  • Equipped with: 2 x 4" (10.2 cm) speakers
  • Frequency response: 20 Hz – 20
  • 000 Hz
  • Housing construction: Bass reflex
  • Controls: Amp Type
  • Gain
  • Bass
  • Treble
  • Master
  • Delay
  • Reverb
  • Output Volume
  • Music Volume
  • Switch: 4 programmable presets
  • Tap/Tuner
  • Effects: 43 onboard (expandable via Spark App)
  • Input: 6.3 mm jack
  • Phones/Rec output: 3.5 mm stereo mini jack
  • Aux input: 3.5 mm stereo mini jack
  • USB port
  • Power supply connection
  • Dimensions (W x D x H): 350 x 180 x 190 mm
  • Weight: 5.2 kg
  • Colour: Black
  • Includes power supply and USB cable
PROS
  • • Smart Jam feature genuinely adapts to your playing style.
  • • Surprisingly full tone from the compact 4” speaker design.
  • • Onboard controls offer immediate access to key amp and effect shaping.
  • • Extensive sound library via the app keeps inspiration flowing.
CONS
  • • 40 watts is loud enough for practice, but not gig-ready.
  • • Bass response is noticeably weaker than larger, dedicated bass amps.
  • • Plastic enclosure feels a little less robust than a traditional amp.

Product Video

Key Features

Power (Watts) 40
Speaker 2 x 4” (10.2 cm) Bass Reflex
Amp Models Hundreds, via Positive Grid Spark App – Fender, Marshall, Vox and more
Effects 43 onboard + countless via App (reverb, delay, modulation, compression, distortion)
Presets 4 Programmable
Weight 7.7 lbs (3.5 kg)

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Frequently Asked Questions

It's great for learning songs, but the latency can be noticeable when playing live; best used for practice and learning.
Yes, the 3.5mm Phones/Rec output can be used to connect to a mixer or interface, but the signal is line-level and not as robust as a dedicated speaker output.
The core sounds are permanently available, but Positive Grid often releases new sounds and features via the app which may require occasional updates or premium features.

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