Copy Schematic: Mxr Carbon

However, the magic happens right after the buffer. You will see a network of capacitors and resistors that form a (a high-pass shelf). The Carbon Copy deliberately cuts bass and boosts treble before the delay chip.

But what is actually happening inside that die-cast enclosure? How does a 40-year-old bucket brigade chip create such a sought-after "vibe"?

Keep building. Keep tweaking. Keep the analog dream alive. Mxr Carbon Copy Schematic

A BBD chip has a limited headroom. If you hit it with a hard pick attack, it will clip into ugly, splatty distortion. The compressor gently squashes your dynamics so the BBD sees a consistently strong, but not too strong, signal.

If you ask ten guitarists to name their favorite analog delay pedal, chances are at least four of them will say the MXR Carbon Copy . Since its release in 2008, this bright blue box has become a modern classic, beloved for its dark, smeared repeats, the lush modulation available at the flick of an internal switch, and its remarkably simple three-knob interface. However, the magic happens right after the buffer

Unlike digital delays (which use AD/DA converters), BBDs sample the audio voltage and pass it down a chain of "buckets" (capacitors) at a specific clock rate. The faster the clock, the shorter the delay. The slower the clock, the longer (but dirtier) the delay.

Then, the signal goes back into the . This is the expander . Remember how we compressed the signal earlier? The expander does the opposite. It turns quiet signals down and loud signals up to restore your original dynamics. But what is actually happening inside that die-cast

In this post, we aren’t just going to stare at a schematic; we are going to break it down block by block. Whether you are a DIY builder looking to clone it, a modder looking to tweak it, or just a curious player, understanding the Carbon Copy schematic is a masterclass in modern analog delay design. This post is for educational purposes only. The MXR Carbon Copy is a patented, copyrighted design owned by Jim Dunlop. Do not use this information to manufacture pedals for commercial sale. The Big Picture: What Makes the Carbon Copy Special? Before we dive into the resistors and capacitors, let’s look at the signal flow. The Carbon Copy is a BBD (Bucket Brigade Device) based analog delay . At its heart is the CoolAudio V3205SD, a modern reissue of the legendary Panasonic MN3205.