Se electronics DM1 User Manual

sE Electronics

®

DM1

User Manual

Thank you!

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.

Powering

To ensure proper operation, the DM1 requires
a phantom power source providing 48 Volts

according to IEC 61938.

Risk of Damage

Do not connect the DM1 to any
power supply other than a phantom
power source (input with phantom

power or external IEC standard

phantom power supply) with a

fl oating connector, using a balanced

cable with studio grade connectors

to IEC 268-12 only. This is the only

way to ensure safe and reliable
operation.

Safety & Maintenance

Risk of Damage

Please make sure that the pieces
of equipment to which your DM1

will be connected ful l the safety

regulations enforced in your country

and are  tted with a ground lead.

This product conforms to the standards listed
in the Declaration of Conformity. Technical data
subject to change without notice.

Technical Specications

Frequency range 10 – 120,000 Hz

Gain 28 dB (load 1kohms)

Max output level
(0.5% THD)

Output noise level 9 μV (JIS-A)

Powering 48 Volts according to

Electrical

Impedance

Recommended
load impedance

Current
consumption

Connectivity 3-pin male/female

Dimensions Diameter: 19 mm

Weight 80 g (2.82 oz.)

(-0,3 dB)

8.3 dBV (2.6 V)

IEC 61938

135 Ohms

>1k Ohms

3.0 mA

XLR connector

(0.75 in.) Length: 95.5
mm (3.76 in.)

Support

In case you are experiencing any problems or

have any questions regarding your sE product,

please contact your dealer rst for the fastest
and more direct service. If an authorized service

is required, it will be arranged by that dealer:

http://www.seelectronics.com/dealers

If you still have diculties with support or

assistance, please do not hesitate to contact
us directly:

http://www.seelectronics.com/contact-us

Lastly, remember to register your new gear to

extend your warranty to a full ve years:

http://www.seelectronics.com/registration

Contact

Feel free to contact us:

sE Electronics International, Inc.
448 Ignacio Blvd, STE 411
Novato, CA 94949 USA

http://seelectronics.com/contact-us

[e-mail]

IMPORTANT

WARRANTY

REGISTRATION

Thank you for purchasing an sE product!

You are automatically entitled to a two-year

warranty, but can extend this to a full three

years with registration. To register your new

equipment and to read the full warranty

details, please go here:

http://seelectronics.com/registration

Most Sincerely,

Your sE Team