Sound Devices MM-1 Battery-powered single-channel microphone preamplifier

Sound Devices Mm-1 Microphone Preamp

Highly versatile and portable, The Sound Devices MM-1 is a Single-Channel Portable Microphone Preamplifier with a powerful headphone monitoring function.

The MM-1uses 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.

Headphone monitoring 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.

Download MM-1 User Manual here

• Maximum of 66 dB of gain, in eleven discrete steps
• Dynamic range exceeding 120 dB
• 10 Hz to 50 kHz audio bandwidth
• High immunity to RF interference
• High current line output driver
• Transformer-balanced input and output
• Extended range peak limiter via dual opto-isolators makes preamplifier virtually "unclippable"
• Selectable 48-volt / 12-volt phantom power or 12-volt "T" power
• High-pass filter @ 80 or 160 Hz, 6 dB per octave<