Black Box MM-1 Manual page 2

REDEFINING WHAT A PREAMP CAN DO
(AGAIN)
The Black Box Analog Design MM-1 vacuum tube preamp is an entirely new
approach to capturing audio. It's not based on any existing circuit but designed
from the ground up, using the best parts and ignoring all of the standard ideas
of how a preamp "should work". We took the concept behind our original
microphone preamp, incorporated everything we discovered while building
the HG-2, made it even more flexible, added features and even made it more
affordable! The result is an incredibly versatile piece of gear that not only
sounds amazing but shatters the idea of what a preamp can do!
Until now, a preamp simply amplified the signal; you essentially got one sound
and the ability turn it up or down. The MM-1 on the other hand allows you to
drastically shape the response curve of the unit without using an EQ, control
the harmonic content from pristine to full on saturation and even control the
dynamics without a compressor!
All of the shaping is done at the tubes and from the constantly variable
interaction between stages allowing you to dial in virtually unlimited tonal
possibilities. You can find the sweet spot of any microphone and instrument
easily and naturally.
Congratulations on your new preamp!
Robert & Eric