Guitar amps · owner-verdict comparison

Marshall CODE 50 vs Positive Grid Spark 40: what real owners say

Real owners rate these about evenly: 54% of 201 Marshall CODE 50 owners recommend it, vs 54% of 52 for the Positive Grid Spark 40.

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

Marshall CODE 50

54%of 201 owners recommend
54% recommend · 16% neutral · 30% don't
Owners praise
  • Huge range of tones and effects
  • Sounds great once you dial it in
  • Loud enough to gig and jam with a band
Owners complain about
  • Thin, digital tone lacking tube feel
  • Factory presets sound muddy and boxy
  • Cheap stock speaker, many swap it
Full owner report →

Positive Grid Spark 40

54%of 52 owners recommend
54% recommend · 4% neutral · 42% don't
Owners praise
  • Excellent value practice amp
  • Huge tone variety via app
  • Fun for jamming and learning songs
Owners complain about
  • Reliability issues, hiss or cutout
  • Not loud enough to gig
  • Thin, digital sound versus tube amps
Full owner report →

What Marshall CODE 50 owners say

“you made that sound better in 1 minute than I had in 1 year!”
— @alexmcgrath674 on YouTube
“I own this amp and I can tell you, it sounds much better than it does on this video.”
— @CapeFearDrift on YouTube
“been trying to tweak this amp for two years and still can’t get a decent tone”
— @extramediumplease5965 on YouTube

What Positive Grid Spark 40 owners say

“What I love most about Spark is when I want to learn a song, I search the cloud for the song.”
— @jrigwald on YouTube
“The best practice amp I have ever owned. Full stop.”
— @l-Libertine on YouTube
“The first built-in practise pattern I tried has got wrong chord positions in the grid - pretty much useless for a beginner, who *depends* on the practise material to be _correct._”
— @Noone-of-your-Business on YouTube