Highly versatile and portable, Sound Devices' MM-1 is a single-channel, portable microphone preamplifier with a powerful headphone monitoring function. Proven in mission-critical applications, the high-performance microphone preamplifier uses a transformer-balanced input and output with a bipolar ±15 volt power supply to produce low-noise, low-distortion gain at all switch positions. It features an "unclippable" dual-stage limiter and two-position high-pass filter. Flexible microphone powering provides phantom power at 48 volts or 12 volts and 12-volt T-power. It is powered from two-AA batteries or external 5-18 VDC.
The MM-1 is at home in high-definition television production, corporate/industrial environments, radio/television announce booths, and music production. Its headphone monitor is an advantage in applications where communications channels or mix-minus feeds need to be monitored in headphones. The user can monitor both microphone audio and external audio sources in headphones with level control.
The MM-1 is designed to be durable. Its aluminum chassis, oversized end panels, machined knobs, and panel mounted connectors assure reliable mechanical operation.
|Gain||(Mic - Line): 0 dB to 66 dB input to output, switch selectable|
|Frequency Response||(Mic - Line) 20 Hz –20 kHz, +0.1, -0.5 dB, -1 dB at 50 kHz(relative to 1 kHz level with 150 ohm source)|
|Equivalent Input Noise||(Mic) -126 dBu (-128 dBV) maximum (150 ohm source, flat weighting, 22 Hz – 22 kHz bandwidth gain setting 36 dB or greater)|
|Dynamic Range||(Mic to Line) 122 dB minimum at the +18 dB gain setting|
|THD + Noise||0.05% maximum(from 50 Hz – 22 kHz @ +4 dBu output level, 22 Hz – 22 kHz filter bandwidth, +46 dB gain setting|
|Gain Accuracy||(Mic - Line) +0.6, -0.1 dB with reference to front panel gain markings (150 ohm source, 100 k load impedances)|
|Output Clipping Level||(Line) +22 dBu minimum with 100k ohm load+20 dBu minimum with 600 ohm load|
|Input Clipping Level||(Mic) +4 dBu minimum at the 0 or +18 dB gain setting|
|Common Mode Rejection Ratio||100 dB minimum at 80 Hz60 dB minimum at 10 kHz|
|Weight||0.7 kg (1.1 lbs)|