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Royer Labs R-DB20 dBooster In-Line Signal Booster for Dynamic & Ribbon Microphones
Royer Labs R-DB20 dBooster In-Line Signal Booster for Dynamic & Ribbon Microphones
B&H # RORDB20 MFR # R-DB20
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Product Highlights
- Raises Signal of Ribbon & Dynamic Mics
- Provides Headroom without Distortion
- Uses 48V Phantom Power
- Protects Ribbons from 48V Phantom Power
- Provides Electrical Isolation
- 12 and 20 dB Gain Stages
- High and Low Impedance
Royer Labs R-DB20 Overview
- 1Description
The Royer R-DB20 dBooster boosts the signal of ribbon and dynamic microphones by making use of 48V phantom power, doing so while protecting ribbon mics from phantom power and providing electrical isolation. As such, the box raises the overall level of these mics without adding color, noise, or distortion.
Two levels of boost are on hand: 12 and 20 dB, selectable on the front panel. You can plug a high- or low-impedance source into the dBooster and still get a significant amount of headroom and gain out of the device. This is due, in no small part, to the use of Class-A input circuitry.
The low-impedance output of the R-DB20 dBooster offers a signal optimized to drive a digital interface or a standard microphone preamp, allowing you to use long cable runs with minimal signal loss to boot.
- Key Features at a Glance
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- 12 dB and 20 dB gain stages
- High and low impedance
- Durable case construction
- Low-noise performance
- Low distortion
- Wide frequency bandwidth
- Safe for use on ribbon microphones
- Increases headroom at the preamp
- Provides electrical isolation
- Protects ribbon mics from phantom power
- Minimizes mic loading
- Capable of driving mic splitters and vintage preamps without noticeable distortion or loss of gain
UPC: 899060002709
- 1Description
Royer Labs R-DB20 Specs
| I/O Connections | Balanced XLR |
| Gain | 12 or 20 dB, Switchable |
| THD+N |
At 12 dB Gain: 0.001%, -6 dBu Input Signal, 3.66 V p-p Output Signal At 20 dB Gain: 0.0015%, -25 dBu Input Signal, 1.3 V p-p Output Signal |
| Inter-Modulation Distortion |
At 12 dB Gain: <.005% at 2.6 V Output At 20 dB Gain: <.002% at 800 mV Output |
| Self Noise |
At 12 dB Gain: <15 dBA (referred to -48 dB, 1 V/pa) At 20 dB Gain: <11 dBA (referred to -48 dB, 1 V/pa) |
| Headroom |
At 12 dB Gain: 120 dB (Referred to -48 dB, 1 V/pa) and 4 mV/pa) At 20 dB Gain: 127 dB (Referred to -48 dB, 1 V/pa) and 4 mV/pa) |
| Frequency Response | 20 Hz to 20 kHz (±0.25 dB) |
| Input Impedance | 3.6 kOhms |
| Output Impedance | 300 Ohms at 20 dB Setting |
| Current Draw | Approximately 5 mA at 0 signal and 7.5 mA at Full Output |
| Power | 48 V Phantom Power |
| Dimensions (L x W x H) | 3.6 x 2.0 x 1.6" / 92 x 51 x 41.3 mm |
| Weight | 6 oz / 170 g |
| Packaging Info | |
|---|---|
| Package Weight | 0.5 lb |
| Box Dimensions (LxWxH) | 4.85 x 3.35 x 2.35" |
