Royer R-DB22
- Dual-channel in-line microphone signal booster & DI
- Switchable gain: 12 dB / 20 dB in mic mode
- Switchable gain: 0 dB / 8 dB in Hi-Z instrument/DI mode
- High input impedance ensures optimal performance with mics and instruments
- Balanced, low-impedance outputs for strong and clean signal delivery
- Durable, rugged housing built for studio and stage reliability
- Ultra-low noise and distortion for pristine sound quality
- Wide frequency response from 20 Hz to 20 kHz
- Expands headroom at the preamp for greater dynamics
- Provides true electrical isolation for maximum signal integrity
- Fully phantom-power safe and designed for all ribbon microphones
- Reduces mic loading for a more natural, transparent sound
- Easily drives demanding loads such as mic splitters and vintage preamps without added distortion or loss of gain
Product information "Royer R-DB22"
The Royer R-DB22 dBooster2 is a dual-channel in-line signal booster and direct box, designed for use with ribbon and dynamic microphones as well as unbalanced instrument sources.
Each channel delivers transparent gain and impedance buffering, ensuring clean signal amplification with minimal distortion or coloration. When used as a mic booster, the R-DB22 provides two selectable gain settings—12 dB or 20 dB—via front-panel switches, giving engineers flexibility to match output levels with different recording and live sound applications.
Its Class A input stage presents a high source impedance, reducing microphone loading and increasing headroom. The low-impedance outputs deliver robust, boosted mic-level signals capable of driving long cable runs, digital interfaces, or standard microphone preamps without signal degradation.
In DI mode, the R-DB22 accommodates unbalanced instrument sources such as guitar or bass, offering 0 dB or 8 dB of selectable gain. With its 230kΩ high-impedance DI input, the unit maintains clarity, headroom, and tonal integrity across a wide range of instruments.
The R-DB22 is a versatile, professional-grade solution for boosting low-output microphones and serving as a pristine DI, making it ideal for both studio and stage environments.
| Safety Warnings: | The specific safety instructions for the product are provided in its user manual. |
|---|
Royer Labs
Royer Labs
2711 Empire Ave., Burbank CA, 91504
https://royerlabs.com
S.E.A. Vertrieb & Consulting GmbH
Zum Sunderhügel 13 48488 Emsbüren
info@sea-distribution.com
https://www.sea-distribution.com/
Gain
- Mic Mode: Switchable 12 dB / 20 dB
- DI Mode: Switchable 0 dB / 8 dB
Total Harmonic Distortion + Noise (THD+N)
- @ 20 dB Gain: 0.0015% (-25 dBu input, 1.3 Vpp output)
- @ 12 dB Gain: 0.001% (-6 dBu input, 3.66 Vpp output)
Intermodulation Distortion (IMD)
- @ 20 dB Gain: < 0.002% @ 800 mV output
- @ 12 dB Gain: < 0.005% @ 2.6 V output
Self-Noise
- 20 dB Gain: < 11 dBa
- 12 dB Gain: < 15 dBa (referenced to -48 dB re. 1V/Pa)
Headroom
- 20 dB setting: 127 dB
- 12 dB setting: 120 dB (referenced to -48 dB re. 1V/Pa and 4 mV/Pa)
- Frequency Response: 20 Hz – 20 kHz, ±0.25 dB
