Royer Labs R-DB22 dBooster2 Dual-Channel In-Line Signal Booster with DIs

Purpose-built for transparently raising gain before your mic preamps, the Royer R-DB22 dBooster2 provides two independent channels that can serve as signal boosters for ribbon/dynamic microphones or quality DIs for Hi-Z instruments such as electric guitar or bass. With Class-A input circuitry and switchable gain boost—up to +20 dB in mic mode or up to +8 dB in Hi-Z mode—the dBooster2 delivers increased headroom at your mic pre without inducing distortion or noise.

The sturdy, road-ready enclosure houses two locking combo inputs and two balanced XLR mic-level outputs. Even though the dBooster2 runs on 48V phantom power, the phantom power is blocked from the inputs, making it safe to use with all ribbon mics. The low-impedance output can handle challenging loads and drive long cable runs without compromising sonic performance.

Recommended Applications

• Miking any low-volume sound source such as acoustic instruments and vocals
• Recording direct to a DAW interface
• Use on long cable runs to retain sound quality
• DI for direct electric guitar, electric bass, and other electronic instruments

Features

• Mic input mode with +12 or +20 dB of gain
• Hi-Z guitar input mode with +0 or +8 dB of gain
• High input impedance
• Low output impedance
• Rugged case construction
• Ultralow noise and distortion
• Wide frequency bandwidth
• Runs on 48V phantom power

Benefits

• Safe for use on all ribbon mics
• Increases headroom at the preamp
• Provides true electrical isolation
• Protects ribbon mics from phantom power
• Minimizes mic loading
• Capable of driving difficult loads such as mic splitters and vintage-style preamps without increased distortion or loss of gain

I/O

• Two locking XLR-1/4" combo jacks for balanced mic input or unbalanced Hi-Z input
• Two balanced XLR 3-pin mic-level outputs