Positive Grid Spark Amp from Justin Johnson's personal collection.

This is the exact Spark Amp that Justin uses in the following video:

ABOUT THE SPARK AMP:

• Smart Jam learns your style and feel, generating authentic bass and drums to accompany you
• Access to 10,000+ amp-and-FX presets on ToneCloud, powered by PositiveGrid’s BIAS realistic virtual tube amps and effects for Guitar, Acoustic or Bass
• Import your music from Spotify, Apple Music or YouTube and Spark’s smart app will auto display the guitar chords in real time
• Powerhouse 40 Watt combo includes onboard tone stack controls, effects, tone starter preset programs, a built-in tuner, tap tempo and more
• Use Spark as your USB audio interface and track your ideas with included PreSonus Studio One Prime recording software
  
  
  • Autograph and Autographed Certificate of Authenticity by request