Royer Labs dBooster2 In-Line Signal Booster and DI

The Royer Labs dBooster2 In-Line Signal Booster and DI 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: 12 dB or 20 dB, 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 12/20 dB 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 0 dB or 8 dB 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.

RECOMMENDED APPLICATIONS:

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

FEATURES:

• 12 dB and 20 dB gain stages in Mic mode
• 0 dB or 8 dB 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
• Gain: switchable 12 dB or 20 dB in Mic mode,; switchable 0 dB or 8 dB in DI mode
• THD+N: @20 dB Gain = .0015%, -25 dBu input signal, 1.3Vp-p output signal; @12 dB Gain = .001%, -6 dBu input signal, 3.66Vp-p output signal
• IM Distortion: @20 dB setting, <0.002% @ 800 mV output; @12 dB setting, <0.005% @ 2.6volts output
• Self-noise: referred to -48 dB re. 1V/Pa, 20 dB setting <11 dBa, 12 dB setting <15 dBa
• Headroom: referred to -48 dB re. 1V/Pa and 4mV/Pa, 20 dB setting: 127 dB; 12 dB setting: 120 dB

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