Guitar amps · owner-verdict comparison

Fender Mustang LT25 vs Positive Grid Spark 2: what real owners say

Real owners lean toward the Positive Grid Spark 2: 53% of 85 owners recommend it, vs 46% of 35 for the Fender Mustang LT25.

Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score

Fender Mustang LT25

46%of 35 owners recommend
46% recommend · 28% neutral · 26% don't
Full owner report →

Positive Grid Spark 2

53%of 85 owners recommend
53% recommend · 18% neutral · 29% don't
Owners praise
  • Massive library of amp models and effects with near-endless tone options
  • Companion app and AI tone creation make dialing in sounds easy
  • Great for practice and jamming, including play-along backing tracks
Owners complain about
  • Buggy app and firmware, including the AI sometimes failing to load
  • Quality and hardware issues for some, like volume dropping out or dead units
  • Stock tones run bass-heavy and need EQ tweaking to clean up
Full owner report →

What Fender Mustang LT25 owners say

“Makes this amp 100x more awesome.”
— @SchMasHed on YouTube
“This seems to be the ultimate practice at home amp.”
— @_dcano on YouTube
“The distortion sounds dark and muddy..”
— @williammolina9792 on YouTube

What Positive Grid Spark 2 owners say

“The Spark wins all around. Sonically, functionally, the form, the support... the whole ecosystem just works.”
— @ArmandoVegaTV on YouTube
“One can not describe the enormous sound of the Spark without being in the room with it, very amazing, I have let a lot players hear mine and they are genuinely impressed once they hear it in person.”
— @RandyRocker56 on YouTube
“the Spark 2 which had many issues that were eventually fixed through firmware updates... it clearly wasn't ready for prime time when it first rolled out their doors”
— SherbetUnusual199 on Reddit