Royer dBooster2 - Dual-Channel Inline Signal Booster and DI

The Royer model R-DB22 dBooster2 features two channels of dBooster ribbon and dynamic microphone signal boosting and impedance buffering technology. Each channel also doubles as a high-impedance DI.

When used as a signal booster, both channels of the dBooster2 increase the level of passive low-output ribbon and dynamic microphones with a minimum of distortion or coloration.

Designed for professional applications, each dBooster2 channel offers two levels of clean gain boost: 12dB or 20dB, selectable by a front panel switch.

The dBooster2’s Class A input presents a high source impedance to microphones, minimizing loading (damping) and improving headroom. By utilizing the 12/20dB gain switch, optimum balance between gain and headroom can be achieved for a variety of uses.

The dBooster2’s low-impedance output is an increased microphone-level signal that can drive a digital interface directly or a standard microphone preamplifier. It also minimizes signal loss on long cable runs.

When used as a DI for unbalanced guitar level sources, the dBooster2 provides either 0dB or 8dB of gain, selectable from the front panel switch. The single ended high-impedance (230K-Ohm) DI input maintains headroom and gain regardless of load, with minimal distortion or coloration.

Features:

• 12dB and 20dB gain stages in Mic mode
• 0dB or 8dB gain in Hi-Z guitar input mode
• High input impedance
• Balanced Low output impedance
• Rugged case construction
• Ultra-low noise performance
• Ultra-low distortion
• Wide frequency bandwidth
• 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