Elegance and simplicity are the driving forces behind Blue's design philosophy, and ROBBIE is no exception. This Class-A discrete tube microphone and instrument preamp features the same technical build quality and commitment to excellence for which Blue is known. Yields excellent detail with extremely low noise and ultrahigh gain. The warm, robust tube gain stage is the perfect enhancement for condenser microphones. Frequency response is 10Hz to 100kHz, +/- 2dB

Minimum Gain: 8 dB
Maximum Gain: 68 dB
Frequency Response (+ / - 2 dB ): 10Hz - 100kHz
Noise @ 60 dB gain (10 Hz - 30 kHz, 50? source): -131 dB EIN
Noise @ 60 dB gain (10 Hz - 30 kHz, 150? source): -129 dB EIN
THD + Noise @ 60 dB gain (10 Hz - 20 kHz, +22 dBu output): < 0.006%
Phase Response @ 60dB gain (50 Hz - 20 kHz, +22 dBu output): < 5 °
Common Mode Rejection Ratio (50 Hz - 20 kHz, 100 mV input): 60dB gain > 64dB; 30dB gain > 75 dB
Maximum Input Level (8 dB Gain, 20 Hz - 20 kHz): +22 dBu w/o pad
Maximum Output Level (20 Hz - 40 kHz @ 10 k?): +34 dBu
Mic Input Impedence (20Hz - 20kHz): 5k? (2x 2,5k?)
HI-Z Input Impedence: 1M?
Output Impedence: 50? (2x25?)
Phantom Power: +48 VDC, +/- 1.5 VDC
Power Consumption: 8W
Power Requirements: 115/230 VAC, 50/60 Hz
Dimensions: 81/2'L X 81/4'W X 51?4'H