Guitar Pedals · owner-verdict comparison

Darkglass B3K V2 vs MXR Carbon Copy: what real owners say

Real owners lean toward the MXR Carbon Copy: 71% of 31 owners recommend it, vs 55% of 60 for the Darkglass B3K V2.

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

Darkglass B3K V2

55%of 60 owners recommend
55% recommend · 20% neutral · 25% don't
Owners praise
  • Aggressive, articulate grindy overdrive like nothing else
  • Outright favorite drive after trying many
  • Great for mild, always-on grit
Owners complain about
  • Disappears or gets lost in a full-band mix
  • Too mid-scooped and polite sounding
  • Hard to dial in a usable tone
Full owner report →

MXR Carbon Copy

71%of 31 owners recommend
71% recommend · 13% neutral · 16% don't
Owners praise
  • Warm, natural-sounding analog delay tone that owners rank among the best analog delays available
  • Long-term reliability and loyalty, owners keep it for a decade or more, tour heavily with it, and keep returning to it after trying other delays
  • Underwhelming compared to alternatives for a minority of owners, some felt it didn't outperform other delays (like the analog settings on an FB/FB4) and ended up returning or replacing it
Owners complain about
  • Underwhelming compared to alternatives for a minority of owners, some felt it didn't outperform other delays (like the analog settings on an FB/FB4) and ended up returning or replacing it
Full owner report →

Which should you buy?

Get the Darkglass B3K V2 if
  • ✓Metal, prog and djent bassists wanting articulate aggressive drive
  • ✓Pick players after tight, grindy overdrive
  • ✓Players wanting a clean, modern, note-defined distortion
  • ✓Recording bassists who need attack that cuts on a track
Skip it if
  • Players chasing nasty, filthy fuzz on its own
  • Bassists needing to cut through a loud live band mix
Get the MXR Carbon Copy if
  • ✓Players wanting warm, natural analog delay
  • ✓Guitarists after slapback and short echo settings
  • ✓Ambient players needing swells that preserve the dry signal
  • ✓Beginners who want simple, hands-on controls
Skip it if
  • Players needing versatility beyond one analog sound
  • Those wanting very long delay times

What Darkglass B3K V2 owners say

“Differentiated pedal, very cool!”
— @petronius_r6719 on YouTube
“I have the B7k ultra v2 and the B3kv2. Both have the same drive circuit as yours. The versatility of these pedals is amazing.”
— bloodfist5 on Reddit
“I just can't use them. I've tried a lot of them. They all have a baked in mid scoop that's almost impossible to eq out.”
— @Rexpbass on YouTube

What MXR Carbon Copy owners say

“Easily my favourite delay pedal!”
— @thejosebatista on YouTube
“Love the CarbonCopy.”
— @northof50now on YouTube
“j'ai acheté cet effet c'est loin d'être ça !”
— @francoisb4830 on YouTube

Darkglass B3K V2 vs MXR Carbon Copy: frequently asked questions

Is the Darkglass B3K V2 or the MXR Carbon Copy better?

Real owners lean toward the MXR Carbon Copy: 71% of 31 owners recommend it, vs 55% of 60 for the Darkglass B3K V2.

Who should get the Darkglass B3K V2?

Owners point the Darkglass B3K V2 at metal, prog and djent bassists wanting articulate aggressive drive, and pick players after tight, grindy overdrive.

Who should get the MXR Carbon Copy?

Owners point the MXR Carbon Copy at players wanting warm, natural analog delay, and guitarists after slapback and short echo settings.

What do owners complain about?

The most-cited downside of the Darkglass B3K V2 is disappears or gets lost in a full-band mix. For the MXR Carbon Copy, it's underwhelming compared to alternatives for a minority of owners, some felt it didn't outperform other delays (like the analog settings on an FB/FB4) and ended up returning or replacing it.