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