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The Sound Devices MM-1 is a single-channel, portable microphone preamp and headphone monitor designed for monitoring sound for film (boom operators), broadcast and ENG, field recording, voice-over work, and corporate/industrial environments. The mic preamp features exceptional audio quality, with a dynamic range exceeding 120 dB and an audio bandwidth from 10 Hz to 50 kHz.
The balanced XLR microphone input provides user-switchable +48, 12V, and 12V-T phantom power. A separate, balanced monitor input accepts balanced or unbalanced line-level signal. The 1/4" TRS headphone output is capable of monitoring microphone signal, external line-level signal, or a mix of both. A 3-position low-cut filter switch eliminates noise below 80 and 160 Hz. The compact unit features a belt clip and is powered by separately available 2 AA batteries or external DC power source.
Compact & Portable
The MM-1 microphone preamp is compact, lightweight, and features a belt clip, allowing comfortable operation for field audio engineers
Versatile Monitoring
A separate input accepts line-level signal and the headphone output is capable of monitoring the mic input signal, line input signal, or a mix of both
Peak Limiter
Peak limiter eliminates noise and distortion caused by signal overload
Low-Cut Filter
A 3-position low-cut filter switch eliminates noise at the 80 and 160 Hz frequency ranges
Superior Audio Quality
The transformer-balanced mic input and premium electronics yield a dynamic range exceeding 120 dB with a 10 Hz to 50 kHz audio bandwidth.
| Inputs | 1 x 3-Pin XLR Female Mic Input |
| Output | 1 x 3-Pin XLR Male Line Output |
| Monitor/Headphone Out | 1 x 1/4" / 6.3 mm TRS Phone |
| ALT I/O | 1 x 1/4" / 6.3 mm Monitor In |
| Link Input/Output | No |
| Impedance | Mic In: 2 Kilohms Monitor In: 22 Kilohms Line Out: 130 Ohms Headphone Out: 200 Ohms |
| Gain | 0 to 66 dB, Selectable |
| Hum & Noise | -126 dBu (EIN) |
| Frequency Response | 20 Hz to 20 kHz (+0.1, -0.5 dB) |
| Distortion | 0.05% |
| Metering | Power and Limiter/Peak LEDs |
| Control Voltage Out | No |
| Phantom Power | +48 V, +12 V, and +12 V-T |
| Operating Temperature | Not Specified by Manufacturer |
| Power | 2 x AA Batteries (Not Included) 5 to 17 VDC Via Threaded Coaxial Jack |
| Dimensions | 1.95 x 3.75 x 6.55" / 49 x 95 x 166 mm |
| Weight | 1.42 lb / 0.64 kg |
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