Royer Labs R-DB20 dBooster In-line Signal Booster
The Royer R-DB20 dBooster is a premium in-line signal booster meticulously engineered to enhance the performance of passive ribbon and dynamic microphones. Designed by Royer Labs—the leaders in ribbon microphone technology—the dBooster provides ultra-clean gain without coloration or distortion, making it an ideal choice for both studio and live sound applications.
Whether you’re recording soft vocals, acoustic instruments, or amplifying your favorite dynamic mic on stage, the R-DB20 delivers a pristine 20 dB or 12 dB boost, optimized to preserve the full frequency response and character of your microphone. Its transformerless, discrete circuitry ensures ultra-low noise and a transparent signal path, allowing your microphones to perform at their full potential, even with low-gain preamps.
Studio-Grade Performance, Anywhere
Housed in a rugged and compact enclosure, the R-DB20 is built to handle the demands of both touring and critical studio use. Unlike generic boosters, it’s specifically voiced for ribbon and dynamic mics—ensuring accurate transient response, natural tonal balance, and no signal degradation, even in high-SPL environments.
Key Features:
- Designed for use with passive ribbon and dynamic microphones
- Selectable gain: +12 dB or +20 dB clean, transparent gain
- Maintains full frequency response and dynamic range of your microphone
- Transformerless discrete circuitry for ultra-low noise performance
- Stable operation under varying load conditions
- Compact and road-ready metal housing with rugged build quality
- Powered by standard 48V phantom power (does not pass phantom to mic)
Technical Specifications:
- Gain Levels: Selectable +12 dB or +20 dB
- Input Impedance: 3.3 kΩ (optimized for ribbon and dynamic mics)
- Output Impedance: 300 Ω
- Maximum Input Level: +1 dBu at 1% THD
- Noise: Less than -100 dB EIN
- Power: 48V phantom power required (phantom not passed to mic)
- Construction: All-metal enclosure with premium components
- Dimensions: Approx. 33 mm x 120 mm (1.3″ x 4.75″)
- Weight: Approx. 170 g (6 oz)
Why Choose the Royer R-DB20?
The Royer R-DB20 dBooster is more than just a signal lifter—it’s a professional-grade tool that brings out the true voice of your microphone. Whether you’re boosting a ribbon mic for vocals or a dynamic mic on snare, this in-line amplifier ensures uncompromised audio quality, with no added coloration or hum. If you demand clarity, headroom, and reliability, the dBooster is the smart choice.
Unlock the full sonic potential of your microphones with the Royer R-DB20—trusted by engineers, producers, and touring professionals worldwide.