For any studio that runs out of mics quickly, or just doesn’t want to bust out the name brand mics for a generic session, it would serve them to have a pair of these around. Peggi started singing into the 87. If DIY audio mods are not for you, we can modify your C1 for you; check out our Studio Projects C1/C3 Mod Service. For kick or low-end instruments. The mic was revised in 2006; the newer version shows the Studio Projects logo, but no cobranding from 797 Audio. The rear diaphragm is clear Mylar. The Studio Projects C1 is a large diaphragm, fixed-cardioid condenser microphone employing a 1.06” (27mm) capsule, high quality, low noise amplifier and balanced, transformerless output circuitry. (14 mV/Pa; 20 - 20,000 Hz). The RK-12 has a smoother, lower-amplitude high-frequency boost than the original C1 capsule, and has a warmer low frequency response. An additional C1 at $200 Audio Technica ATM25 $139. The presence of the trimmer on the circuit board suggests that the JFET was biased after installation. The entire circuit is implemented on a single PCB. We have two mod options for the Studio Projects C1, both the first generation "797 Audio" version and the newer "Red Badge" version. Click the image at right to see over a dozen 5-star customer reviews of this kit. K67 derivative. We've sold hundreds of kits with uniformly amazing results. EXACTLY the same, no difference. She then moved over to the C1 and sang into that. The Studio Projects C1 fixed pattern large diaphragm studio condenser mic is the perfect case study for microphone hype, in both senses of that word. 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. "U87 EQ" circuit mod for Studio Projects C1. 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. My mic recommends, in this order would be; Studio Projects C1 $200 Shure SM57 - get 2 at $79 each Oktava MC012 - $200-$300 pair or $149 each at GC. Awesome, that classic Neumann sound that is heard on probably 90% of the records ever made. The mic was revised in 2006; the newer version shows the Studio Projects logo, but no cobranding from 797 Audio. This value does not change when the pad is engaged; the pad is created by switching a 150pF ceramic capacitor into the high-impedance circuit. The capsule is a 34mm O.D. Click for more info on any of our large-diaphragm microphone capsules. The original Studio Projects C1 microphone is a transformerless FET condenser with a large-diaphragm K67-style capsule and switchable pad and filter. The JFET is a 2N5457. Studio Projects designs and manufactures high quality studio microphones, 500 Series Modules and pro audio equipment. 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. K67 derivative. They use Wima film capacitors and some unknown box film capacitors in the DC to DC converter and the coupling capacitor to the Fet. The original C1 was commonly compared to the Neumann U-87, despite the fact that the circuits of these two microphones are very different from each other. If DIY audio mods are not for you, we can modify your C1 for you; check out our Studio Projects C1/C3 Mod Service. A single 3-way switch on the rear of the microphone body enables either a high-pass filter or -10dB pad. (The RK-87 is actually a bit less hyped sounding than the stock capsule, and as such constitutes a mild upgrade on its own.) The capsule is a 34mm O.D. Not even taking the price of the C1 into consideration, this mic stood up to some rather hefty opponents, and emerged as a contender. Just dial in the amount of high-frequency attenuation that best suits your needs. 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.