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Blue Robbie
Blue Robbie
 
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List Price: $999.99
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Product Code: 1617

 

Blue Microphones Robbie Tube Preamp

The Blue Robbie Single-Channel Class A Discrete Tube Microphone and Instrument Preamplifier one of the finest tube preamps available today!

The Blue Microphones Robbie is a Class-A discrete tube microphone and instrument preamplifier. 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. It 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!

Elegance and simplicity are the driving forces behind Blue's design philosophy. Robbie is no exception. The front panel features only a large backlit potentiometer (gain) and 1⁄4 hi-Z instrument input. On the back, you'll find the power cable input, power switch, balanced XLR mic input, balanced XLR line output, polarity switch, -20 dB pad, input selector switch (mic/instrument) and phantom power on/off.

The Robbie is rackmountable with the Blue Microphones Robbie Rackmount Adaptor

Blue Microphones Robbie Tube Preamp Features

  • Very quiet design - -131 dB EIN @ 50 Ohms
  • Extremely detailed sound - 0.006% Total Harmonic Distortion (THD)
  • Microphone and Instruments Inputs
  • Audiophile-grade ultra low noise metal film resistors
  • Audiophile-grade polystyrene capacitors
  • +48V Phantom Power
  • Electronically-balanced, fully discrete input stage, tube gain stage (ECC88 twin triode), and an electronically-balanced solid-state output stage
  • No switching crossover distortion
  • Completely balanced audio signal path - a rarity that sounds fantastic!
  • Rackmountable with the Blue Microphones Robbie Rackmount Adaptor

Blue Microphones Robbie Tube Preamp Specifications

  • Minimum Gain: 8 dB
  • Maximum Gain: 68 dB
  • Frequency Response (+ / - 2 dB ): 10Hz - 100kHz
  • Noise @ 60 dB gain (10 Hz - 30 kHz, 50 Ohm source): -131 dB EIN
  • Noise @ 60 dB gain (10 Hz - 30 kHz, 150 Ohm 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 Ohms
  • 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 kOhms): +34 dBu
  • Mic Input Impedence (20Hz - 20kHz): 5k Ohms (2x 2,5k Ohms)
  • HI-Z Input Impedence: 1 MOhm
  • Output Impedence: 50 Ohms (2x25 Ohms)
  • Phantom Power: +48 VDC, +/- 1.5 VDC
  • Power Consumption: 8W
  • Power Requirements: 115/230 VAC, 50/60 Hz
  • Dimensions: 8.5'L X 8.25'W X 5.25'H
  • Warranty: 3-Years

Blue Microphones Robbie Tube Preamp Includes

  • Robbie Preamp
  • IEC Power Cable
  • Manual & Literature

Blue Microphones Robbie Tube Preamp Downloads

Click here to view all Blue Microphones products


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Average Customer Review 5 of 5 Total Reviews: 1

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  0 of 0 people found the following review helpful:
 
Wonderful October 16, 2010
Reviewer: Michelangelo Trujillo from Ann Arbor, MI United States  
I currently have an ISA220, LA610MKII, and a Robbie. I also have a TLM49 and a Kiwi to compare through these various preamps. In my own little shootout my observations were that the ISA220 sounds great, smooth, and relatively neutral, the LA610 has a slight boost in the high end that I don't really like (but still sounds great), and the Robbie is neutral, kind of buttery and smooth, and a little fatter then the others. It's also slightly less bright then the other two mic pre's. That said, it has a character that the other two pre's didn't, adding some kind of sonic thickness that I can't describe. I highly, highly recommend checking it out. Without a doubt a worthy addition and/or upgrade of your front end. That said, it is a minimalist preamp and so if you need something that doubles as an A/D (ISA), or has a compressor (ISA and 610), then you're out of luck. If you just need a straight up channel of sonic delight, this is it.

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