Avantone CV12 Upgrade Service

Our comprehensive upgrade for the Avantone CV-12 replaces the entire signal path within the microphone -- capsule, circuit, tube, and transformer -- resulting in a world-class tool that rivals commercial mics costing $2500. About the Mod The CV-12 contains a typical Chinese tube mic circuit, the so-called "CCDA" topology, with a transformer whose turns ratio is too high. The capsule voicing tends to have an exaggerated top end, and a thin bottom end, giving the mic a somewhat harsh sound. None of those components survive the upgrade process. We install our RK-12 capsule, which is voiced like the AKG CK-12. We install a new tube circuit, based on what was used in the vintage Telefunken ElaM 251 (arguably the most famous vocal mic ever made). Unlike the original circuit, ours is a true single-triode design. We implement it with premium components, including a custom made output capacitor that was chosen after auditioning a dozen different parts. Case Study Here is a detailed case study c