| Minimum Gain | 14 dB |
| Maximum Gain (3 ranges with continuous trim) | 50 dB |
| Frequency Response (+0 / -3 dB) | 4 Hz to 130 kHz |
| Noise (50 dBu Gain, 10 Hz - 30 kHz, 150 ohm Source) | -116 dB EIN |
| Total Harmonic Distortion + Noise (30 dB Gain, 10 Hz - 20 kHz Bandwidth, 0 dBu Out) | < .02% |
| Intermodulation Distortion (50 Hz & 7 kHz) 35 dB Gain, +27 dBu Out | < .0009% |
| Phase Response (35 dB Gain, 20 Hz - 20 kHz, +26 dBu Out) | < 10 degrees deviation |
| Phase Response, Stereo Deviation (35 dB Gain, 20 Hz - 40 kHz, +27 dBu Out) | < 1 degree |
| Common Mode Rejection Ratio (30 dB Gain, 1 kHz, 100 mV C.M.) | > 60 dB |
| Slew Rate (35 dB Gain, +27 dBu Out) | > 20 Volts per microsecond |
| Maximum Input Level (20 Hz - 40 kHz, 14 dB Gain) | +20 dBu (no attenuator pads required) |
| Maximum Output Level (20 Hz - 40 kHz, 10 kilohm Min. Load) | > +35 dBu |
| Interchannel Crosstalk (30 dB Gain, 1 kHz, 0 dBu Both Outputs) | < 70 dB |
| 30 dB Gain, 1 kHz, 0 dBu Both Outputs | < 70 dB |
| Phantom Input Impedance | 3.800 ohms |
| Output Impedance | 120 ohms |
| DPA (B&K) Mic Powering | +130 V dc max, (non-phantom) |
| Phantom Powering | +48 V dc, +/- 2 V dc |
| Power Consumption | 50 watts maximum |
| Power Requirements | Selectable: 100-120, 200-240 V ac, 50/60 Hz |
| Dimensions/Shipping Weight | 19” W x 3.5” H x 12” D, 26 lbs.. |
The sound is great -- sweet, refined, full of dynamics - fabulous on grand piano.
Tony Faulkner, Greenroom Productions, UK owner of HV-3D and M-2B preamplifiers
Guitar, violin, flutes and other instruments in stereo array with Schoeps sound so pure, sweet and spacey. I especially love the tube preamp (M-2b) with the transformer engaged
sometimes. Really a happy day and hopefully many happy days yet to come... It was preceded by two months of communication with Millennia and John La Grou - and he was so kind to me, answering all possible questions
and being extremely helpful.
I. Solace [in the George Massenburg Forum,
6 Oct 2003]
This is an outstanding mic preamp. I’ve never heard our mics sound this clean on piano. We’ve been using our [46 channels of] Millennia preamps on everything...
Jack Renner, President, Telarc Records International
A couple of experienced recording engineers here in DC thought my combination of Schoeps m222b tube mic and M-2b preamp was the greatest front end they had ever heard.
Steve Cormier
“The M-2b is an audio masterpiece. Tube technology at it’s finest- which in my book means audio technology at it’s finest! Our first choice for vocals and piano. If we owned
more channels, the M-2b would probably be first-choice on everything until we ran out of them! Like everything from John La Grou’s workbench, the M-2b is built like a fine watch. A pleasure to hear, see, and touch.”
Randy Ezratty, Effanel Music, Inc.
Still mesmerized each time we listen to this thing - the more we do with it, the more harmonics jump outta this thing! And it isn’t even broken IN yet! It’s just absolute insanity.
Compliments to the chef.
Ira Segall
