Question 1

Which is better, Boss Katana-50 MkII or Positive Grid Spark 40?

Accepted Answer

Both products scored 8.5/10 in our testing — it's a tie. Choose based on which features matter most to you.

Question 2

Is the Boss Katana-50 MkII worth it over the Positive Grid Spark 40?

Accepted Answer

The Boss Katana-50 MkII scores 8.5/10 while the Positive Grid Spark 40 scores 8.5/10. The Boss Katana-50 MkII is our "Best Overall" pick in the Best Guitar Amplifiers for Home 2026 category.

Boss Katana-50 MkII vs Positive Grid Spark 40: Which to Buy?