Royer Labs R-DB20 dBooster2 – 2-Channel In-line Signal Booster
The Royer R-DB20 dBooster2 is a dual-channel in-line signal booster designed to bring out the full sonic potential of passive ribbon and dynamic microphones. Built with Royer’s renowned commitment to audio quality, the dBooster2 provides clean, transparent gain, improved headroom, and optimized impedance for pristine sound in both studio and live settings.
Featuring two fully independent channels, each with switchable +12 dB or +20 dB gain, the dBooster2 ensures flexible and consistent signal boosting across various sources. Unlike generic preamp boosters, it maintains the natural tone and full frequency response of your microphone—without distortion, noise, or coloration.
Ideal for low-output microphones, long cable runs, or preamps with limited gain, the R-DB20 is powered by standard 48V phantom power (which is not passed to the mic) and delivers high-performance results without compromise. Whether used with Royer ribbons, Shure SM7Bs, or any other low-output mic, the dBooster2 guarantees clean, professional-grade signal integrity.
Key Features:
- Dual-channel in-line signal booster for passive ribbon and dynamic microphones
- Independent channels with selectable +12 dB or +20 dB gain
- Maintains full frequency response and natural mic tone
- Extremely low noise and high headroom design
- Phantom-powered operation (phantom not passed to mic)
- Compact and rugged enclosure for studio or stage use
- Designed and built in the USA
Technical Specifications:
- Channels: 2 independent in-line boosters
- Gain: Selectable +12 dB or +20 dB per channel
- Input Impedance: 3.3 kΩ (optimized for ribbon and dynamic mics)
- Output Impedance: 300 Ω
- Max Input Level: +1 dBu at 1% THD
- Noise: Less than -100 dB EIN
- Power: 48V phantom power required (not passed to microphone)
- Construction: Rugged metal chassis
- Dimensions: Approx. 140 mm x 90 mm x 33 mm (5.5″ x 3.5″ x 1.3″)
- Weight: Approx. 450 g (15.9 oz)
Why Choose the Royer R-DB20 dBooster2?
The R-DB20 dBooster2 offers unmatched clarity, consistency, and flexibility in a dual-channel format. Whether you’re tracking vocals, amplifiers, or acoustic instruments with low-output mics, it provides the gain you need—without compromising the natural sound of your microphone. Trusted by professionals worldwide, it’s a must-have utility for engineers seeking clean, high-performance signal boosting.
Boost your signal the right way with the Royer R-DB20 dBooster2—built for transparency, precision, and reliability.