Battery Life - Sound Devices MM-1 User Manual And Technical Information

Headphone Monitoring
With headphones connected to the front panel headphone jack the MM-1 can be used to monitor
either microphone audio, monitor audio, or a mix of both signals. The Phones level controls the
overall headphone volume. The Monitor Gain adjusts the level of the monitor input signal.
The MM-1 is capable of driving headphones to dangerously high levels. Take precautions to prevent
hearing damage.

Battery Life

Several factors affect battery life, including battery chemistry, ambient temperature of operation,
microphone powering, and headphone drive levels. Experimentation is recommended to determine
battery life for each individual setup.
Nickel-cadmium batteries are not recommended in the MM-1. These batteries have low energy per cell
versus other types and provide very short operation.
Battery Type
Duracell AA MN 1500
Duracell AA MN 1500
Duracell AA MN 1500
2000 mAh NiMH AA
(Test conditions: 70º F)
Operational Characteristics
powered, idle
dynamic microphone, +4 dBu output, 75
ohm headphones at moderate level
condenser microphone (48V), 75 ohm head-
phones at high levels
dynamic microphone, +4 dBu output, 75
ohm headphones at moderate level
MM-1 User Guide and Technical Information
Battery Life
20 hrs.
14 hrs.
8 hrs.
17 hrs.
7