Royer R-DB20 "dBooster" In-line Signal Booster, Order Min: 4

Article number: R-DB20
Availability: In stock

The dBooster has two gain settings, 12 dB and 20 dB, allowing you to dial in just the right amount of in-line gain for your different singers and instruments. The 20 dB setting gives loads of clean boost for recording soft instruments and singers, but when your singer is wailing or you use the dBooster on high volume instruments like electric guitar, switch it down to 12 dB to keep from overloading your preamp or digital interface.

The dBooster’s Class A input stage delivers crystal clean gain with virtually no noise or self-distortion.

The dBooster’s low-impedance output keeps things clean in the studio and also shines on live stages, driving long cable lengths and difficult loads like mic splitters and vintage-style preamps with no loss of gain, no increased distortion, and excellent headroom.

The dBooster gives excellent results with Royer R-121s, R-10s and stereo SF-12s. It also smokes on SM7s and other dynamic mics!

The dBooster is built in the USA and ships from our Burbank headquarters.


Ultra-low noise, ultra-low distortion

Class A input stage

Safe for use on all ribbon mics

Wide frequency bandwidth

Retains sound quality on long cable runs

Maintains headroom and gain regardless of load



    • THD+N:@ 20dB Gain = .0015%, -25dBu input signal, 1.3Vp-p output signal @ 12dB Gain = .001%, -6dBu input signal, 3.66Vp-p output signal
    • IM Distortion: @ 20dB setting, < .002% @ 800mV output, @ 12dB setting, < .005% @ 2.6volts output
    • Self-Noise:referred to -48dB re. 1V/Pa , 20dB setting < 11dBa, 12dB setting < 15dBa
    • Headroom: referred to -48dB re. 1V/Pa and 4mV/Pa, 20dB setting: 127dB, 12dB setting: 120dB
    • Frequency response: 20Hz-20kHz +/- .25dB
    • Input Impedance: 3.6K-Ohm
    • Output Impedance: (at 20dB setting) 300-Ohms
    • Current draw: approximately 5mA at zero signal and 7.5mA at full output
    • Input and output connections: Balanced XLR: (Pin 1 Ground, Pin 2 Signal Hot, Pin 3 Signal Cold)
    • Power: 48-Volt phantom
    • Dimensions: 3.62” (92mm) L X 2.0” (51mm) W X 1.62” (41.3mm) W
    • Weight:6 oz (170g)

    WARNING: Cancer and Reproductive Harm. For more information go to

0 stars based on 0 reviews
By using our website, you agree to the use of cookies. These cookies help us understand how customers arrive at and use our site and help us make improvements. Hide this message More on cookies »