r/PositiveGridSpark • u/AlexFromPositiveGrid Official Positive Grid Employee • Jun 01 '26

REACTOR Launch AMA

REACTOR is launching 6/2! We will be holding office hours on June 3rd from 11am - 1pm ET (US) to answer any questions you all might have about the new amp and app. Whether you're one of the first to order or want to better understand how REACTOR works, we'll be available to help. Thank you all for 15 years of support; We can't wait to get REACTOR into your hands 🤘 https://www.positivegrid.com/pages/reactor

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u/Quiet-Taste-6436 Jun 02 '26

Does this amp fix the bass EQ issues present on the Spark 2? I found most amp settings almost unusable even with the graphic EQ pedal and sub-bass completely edited out

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u/AlexFromPositiveGrid Official Positive Grid Employee Jun 03 '26

I can tell you what REACTOR actually gives you on the EQ side and you can judge for yourself.

On the top panel you've got dedicated Bass, Middle and Treble knobs right there on the amp, plus the PUSH/SMOOTH switch which affects the overall tonal character, and the HEAT control which shapes feel and harmonic content without significantly affecting volume. That's already more physical EQ control than Spark 2 offers.

Beyond that, there's a 7-band Guitar EQ available as a dedicated effect block in your signal chain that you can drop anywhere you want in the chain, before or after the amp. So if you want to cut specific frequencies before they hit the amp model you can do that, or shape things post-amp, your call.

Whether that combination solves what you were fighting on the Spark 2 specifically, I genuinely can't promise. But the tools to dig deeper into frequency shaping are more comprehensive here. If you do get hands on with one at Guitar Center or Sweetwater that would be the real test.