Studio Projects C1 Mods

We have two mod options for the Studio Projects C1, both the first generation "797 Audio" version and the newer "Red Badge" version.

If DIY audio mods are not for you, we can modify your C1 for you; check out our Studio Projects C1/C3 Mod Service.

#1: "U87 EQ" Circuit Mod

Our favorite mod for the C1 is to install our add-on EQ circuit board, which recreates the high-frequency rolloff from the Neumann U87. If you find your C1 to be too bright or too sibilant on some sources, you'll love this mod, as it provides an adjustable "treble control" inside the mic. Just dial in the amount of high-frequency attenuation that best suits your needs.

Click the image at right to see over a dozen 5-star customer reviews of this kit. We've sold hundreds of kits with uniformly amazing results.

Click for more information on the "U87 EQ" circuit mod for Studio Projects C1.

#2: Capsule Replacement

If you lack the experience or confidence to modify the C1's circuit, you could alternatively re-voice the mic by installing one of our large-diaphragm capsules. The RK-12 has a smoother, lower-amplitude high-frequency boost than the original C1 capsule, and has a warmer low frequency response. We've heard great acoustic guitar tracks from RK-12/C1 microphones (with stock circuits).

Alternatively, the RK-47 is a great match for the stock C1 circuit; it gives a classic K47-style rich midrange, great for vocals, strings, and small percussion.

The RK-87 capsule is the best direct replacement for the original C1 capsule, if your capsule is broken and you wish to restore the mic to near-factory performance. (The RK-87 is actually a bit less hyped sounding than the stock capsule, and as such constitutes a mild upgrade on its own.) Click for more info on any of our large-diaphragm microphone capsules.