Royer R-DB20 Preamp/Signal Booster

This Royer R-DB20 preamp/signal booster is perfect for use with dynamic microphones like the Shure SM7B, where a high output is desired. The preamp offers a clean and transparent signal with low noise. It features 12 and 20 dB gain modes, as well as a powerful line-driving output stage. The unit is in excellent condition, with only a few minor scratches that are only visible up close. The preamp/signal booster is designed to deliver exceptional performance, ideal for those seeking a high-quality, professional preamp. Features include: * Four paralleled transistors process each leg of the balanced input. * Very low noise, extremely clean and transparent. * Active balanced output driven by high-quality op-amps. * 12 and 20 dB gain modes. * Isolates phantom power from microphone. * Powerful line-driving output stage.