Real owners rate these about evenly: 66% of 68 Boss RV-6 Reverb owners recommend it, vs 71% of 31 for the MXR Carbon Copy.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“The Reverb is a gem. That pedal has a lot of settings to get some really cool sounds out of it.”— neverw1ll on Reddit
“Big fan of RV-6. When I got it I thought it was “pretty good” but after a couple of years I love it.”— ziganaut on Reddit
“Had the RV-6 at one point, but found it too metallic. All Boss reverbs are like that to my ears though. Modulated is the best algo on the RV-6, but it seriously pales in comparison to Mercury7 modulation.”— KickFragrant7836 on Reddit
Real owners rate these about evenly: 66% of 68 Boss RV-6 Reverb owners recommend it, vs 71% of 31 for the MXR Carbon Copy.
Owners point the Boss RV-6 Reverb at players who want one reverb for standard hall, room, plate and spring sounds and expect to run it always-on, and anyone who wants shimmer occasionally and is willing to roll the tone knob back to get it.
Owners point the MXR Carbon Copy at players wanting warm, natural analog delay, and guitarists after slapback and short echo settings.
The most-cited downside of the Boss RV-6 Reverb is a minority hear the algorithms as digital or metallic, competent rather than inspiring. 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.