User Manual

We would like to thank you cordially for choosing
this sE DM1! We hope you enjoy using it as much
as we enjoyed designing and building it for you.
The DM1 is an active inline preamp intended to
be inserted between a passive ribbon or dynamic
microphone and a microphone preamplier.
Providing a robust 28dB of gain, the DM1 is the
perfect way to boost the signal from a passive
mic, reduce the likelihood of interference, and
provide signicantly improved level to your
preamp – all without adding noise or coloration.
With a sophisticated class-A design and
specially-selected high-grade FETs, the DM1 has
the lowest self-noise in its class. Additionally, the
28dB of gain it provides is always a consistent
28dB regardless of the connected load, thanks
to its dedicated output buffer amplier. Its
output impedance is also the lowest in its class,
allowing it to drive long cable runs and reduce
the likelihood of RF interference, buzz and hum.
Reliable operation even in demanding on-
stage applications in dicult environments is
ensured by the roadworthy and slim all-metal
design, robust construction, and high-quality
manufacturing standards.
Note: the DM1 requires phantom power for
operation but does not work with microphones
than require phantom power, e.g. condenser
microphones or some active ribbon microphones.
Thank you!