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Royer
Royer Labs R-DB20 dBooster In-Line Signal Booster
DI Box For Boosting The Signal Of Low Output Microphones
UK Delivery - From £2.99
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The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.
The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.
Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose click and collect as your delivery option online or, during store opening hours, call our sales team at 01483 456777 to place a 10% deposit.
If you have placed your order online, you will receive a confirmation email of your order and a separate follow-up text or email to confirm when your item is ready for collection.
Please do not come to the store before you have received the follow-up message, as your order may not yet be ready at the store.
If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.
Please be aware that, unless you have paid a deposit to reserve the item, it will continue to be free, both online and in-store, for another customer to buy. Therefore we would advise you to place a 10% deposit by either using the on-line click and collect service or calling us 01483 456777.
SKU: DBOOSTER
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Product Description
The Royer Labs dBooster R DB20 is a phantom-powered in-line signal booster designed to unlock the full potential of passive ribbon and dynamic microphones. Built for professional recording and live sound environments, it delivers exceptionally clean gain while preserving the natural character of your microphone. With selectable 12 dB or 20 dB boost, the dBooster allows you to optimise gain structure for a wide range of sources, from quiet acoustic instruments to intimate vocal performances.
Its Class A input circuitry presents a high input impedance, reducing microphone loading and minimising unwanted colouration or distortion. This design improves headroom while maintaining consistent performance regardless of the connected preamp or interface. The low impedance output ensures reliable signal transmission over long cable runs and makes it suitable for driving challenging loads such as mic splitters or vintage-style preamps.
Compact, rugged and ultra quiet, the dBooster is safe for use with all ribbon microphones and provides true electrical isolation while protecting against phantom power issues. Whether recording directly into a DAW interface or enhancing a traditional studio setup, the Royer dBooster delivers transparent gain, improved clarity and dependable performance in any professional workflow.
Features
- Selectable Clean Gain Boost:
Offers switchable 12 dB or 20 dB gain, allowing precise control of headroom and signal level for different microphones and recording situations. - High Input Impedance Design:
Minimises microphone loading to reduce distortion and colouration while improving dynamic range and preserving the natural tonal balance. - Low Impedance Output Stage:
Provides a strong microphone level signal capable of driving long cable runs, interfaces and demanding preamps without loss of quality.
Optimised for Ribbon and Dynamic Microphones:
The dBooster R DB20 is specifically engineered to complement passive ribbon and dynamic microphones, which often require additional clean gain. Presenting a high impedance load to the microphone, it reduces damping and allows the transducer to perform more freely. This results in improved clarity, extended headroom and reduced distortion, even when capturing very quiet sources. The unit is completely safe for ribbon microphones and offers electrical isolation that protects against phantom power, making it ideal for both modern and vintage mic collections.
Professional Gain Structure and Headroom:
With its selectable gain stages, the dBooster allows users to tailor the balance between gain and headroom to suit different recording environments. The Class A circuitry maintains consistent performance regardless of the connected load, ensuring reliable results when feeding audio interfaces, mic preamps or splitters. Ultra-low noise and distortion figures make it suitable for critical studio work, while its stable output ensures clean capture even in demanding signal chains.
Compact, Durable and Studio Ready:
Housed in a rugged enclosure, the dBooster is built to withstand regular studio and stage use. Its compact in line format integrates easily into existing setups without adding clutter, and phantom power operation removes the need for external power supplies. Designed for reliability and transparency, it is an essential tool for engineers seeking improved gain, clarity and control when working with low-output microphones.
Specifications
- Gain: 12 dB or 20 dB switchable
- THD plus N: 0.0015 percent at 20 dB gain, 0.001 percent at 12 dB gain
- IM Distortion: Less than 0.002 percent at 20 dB setting, less than 0.005 percent at 12 dB setting
- Self Noise: Less than 11 dBA at 20 dB, less than 15 dBA at 12 dB
- Headroom: 127 dB at 20 dB setting, 120 dB at 12 dB setting
- Frequency Response: 20 Hz to 20 kHz plus or minus 0.25 dB
- Input Impedance: 3.6 k Ohm
- Output Impedance: 300 Ohm at 20 dB setting
- Power: 48 volt phantom power
- Connections: Balanced XLR input and output
- Dimensions: 92 mm x 51 mm x 41.3 mm
- Weight: 170 g
