User Manual
MP-1 Microphone Preamplifier
User Guide and Technical Documentation
page 8
Batteries
The MP-1 is designed to operate on two AA alkaline cells for approximately 26 hours with typical sig-
nals (without phantom power). The audio performance of the MP-1 does not vary throughout the life of
the batteries.
Many factors affect battery life including—battery chemistry, ambient temperature of operation, phan-
tom voltage, microphone current draw, and output drive level. The chart below can be used as a starting
point to estimate battery life. Experimentation is recommended to determine battery life for each indi-
vidual setup. Note: Nickel-Cadmium batteries are not recommended in the MP-1 since these batteries
have lower energy per cell than other types and will result in very short service.
Battery Type Microphone Type Battery Life
Duracell AA MN 1500 Dynamic handheld 26 hrs.
Duracell AA MN 1500 Electret condenser, 12-volt phantom 18 hrs.
Duracell AA MN 1500 Studio condenser, 48-volt phantom 5 hrs.
Test conditions: 70 F, 42 dB gain with music source, 600 ohm load, +4 dBu output
FCC Statement
This device has been tested and found to comply with the limits for a class B digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio fre-
quency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in
a particular installation.
Warranty
Sound Devices, LLC warrants the MM-1 Microphone Preamp with Headphone Monitoring against
defects in materials and workmanship for a period of ONE (1) year from date of original retail purchase.
This is a non-transferable warranty that extends only to the original purchaser. Sound Devices, LLC
will repair or replace the product at its discretion at no charge. Warranty claims due to severe service
conditions will be addressed on an individual basis. THE WARRANTY AND REMEDIES SET FORTH
ABOVE ARE EXCLUSIVE. SOUND DEVICES, LLC DISCLAIMS ALL OTHER WARRANTIES, EX-
PRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. SOUND DEVICES, LLC IS NOT RESPONSIBLE FOR SPECIAL, INCIDEN-
TAL, OR CONSEQUENTIAL DAMAGES ARISING FROM ANY BREACH OF WARRANTY OR UN-
DER ANY OTHER LEGAL THEORY. Because some jurisdictions do not permit the exclusion or limita-
tions set forth above, they may not apply in all cases.
For all service, including warranty repair, please contact Sound Devices for a return authorization num-
ber (RMA) before sending the unit for service. Service returns should be sent to:
Sound Devices, LLC
Service Repair (RMA # XXXX)
300 Wengel Drive
Reedsburg, WI 53959 USA
telephone: (608) 524-0625