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Blue Robbie Microphone and Instrument Tube Preamplifier

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$580.00

Blue Robbie Microphone and Instrument Tube Preamplifier

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Product Description

Simplicity of design. Purity of sound. Robbie is Blue's Class-A discrete tube microphone and instrument preamplifier. All of the technical quality and design innovation that goes into their line of award-winning microphones has been engineered into making Robbie the finest tube preamp available today.

With no ICs and only the highest-quality discrete components from input to output, Robbie is one of the quietest (-131 dB EIN @ 50 ohms) and most detailed (THD 0.006%) tube preamps available today.

Robbie features audiophile-grade ultra low noise metal film resistors and polystyrene capacitors, and provides the user with the best of both worlds: an electronically-balanced, fully discrete input stage, tube gain stage (ECC88 twin triode), and an electronically-balanced solid-state output stage. There is no switching crossover distortion anywhere in the completely balanced audio signal path. And if that's not enough, Robbie achieves and amazing 34dB headroom before clipping! Designed from the ground up, this limited production mic pre is like nothing else commercially available today.
Minimum Gain 8dB
Maximum Gain 68dB
Frequency Response 10Hz - 100kHz
Noise @ 60 dB gain (10 Hz - 20 kHz, 50Ω source) -131 dB EIN
Noise @ 60 dB gain (10 Hz - 20 kHz, 150Ω source) -129 dB EIN
THD + Noise @ 60 dB gain (10 Hz - 20 kHz, +22 dBu output) < 0.006%
Phase Response @ 60 dB (50 Hz - 20 kHz, +22 dBu output) < 5°
Common Mode Rejection Ratio (50 Hz - 20 kHz, 100 mV input) 60 db gain > 64 dB; 30 dB gain > 75 dB
Maximum Input Leve (8 dB Gain, 20 Hz - 20 kHz) +22 dBu w/o pad
Maximum Output Level (20 Hz - 40 kHz @ 10 kΩ) +34 dBu
Mic Input Impedance (20 Hz - 20 kHz) 5 kΩ (2x2, 5kΩ)
HI-Z Input Impedance 1MΩ
Output Impedance 50Ω (2x25Ω)
Phantom Power +48 VDC, +/- 1.5 VDC
Power Consumption 8W
Power REquirements 115/230 VAX, 50/60 Hz
Dimensions 8.5" L x 8.25" W x 5.25" H

 

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