Here we look at the Spark App which is integral to the use of the Spark 40 amplifier by Positive Grid.
Link to video going through the amp's tones -    • Positive Grid Spark 40 Amp Tones  

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Written review of the amp: https://www.samgoffenguitar.com/post/...

Times Stamps:
(01:04) Using the App to Control the Amps and Pedals
(04:36) Tonecloud
(05:42) Music Section - for practising and jamming.

Overall, a great piece of kit, with seamless integration with this awesome app. Just one or two things that I've noticed so far that I'd like to see improved:

More effects, e.g an Octaver
More flexible routing of the effects
Slightly better layout of the app when minimising the Music section so you can control pedals better
An app on the Mac so you can change settings without also needing another device at hand