High Quality Portable Mic Preamp with Headphone Monitor

User Guide | Fact Sheet | Panel Description | Accessories

The MM-1 combines two essential production functions — microphone preamplification and headphone monitoring — in one compact product. The MM-1 is a no-compromise, studio-quality microphone preamplifier with phantom power, high-pass filter, and built-in limiter.

With its monitoring function providing fold-back of preamp audio and external monitor audio, the MM-1 is at home in the most complex broadcast remotes, theatrical productions, and intercom setups.

Technical Details
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 ÒT" power
High-pass filter @ 80 or 160 Hz, 6 dB per octave
Headphone monitoring of microphone audio, monitor audio, or a mix of both
Monitor input accepts mono, balanced or unbalanced line-level inputs on 1/4-inch tip-ring-sleeve connector
Separate level control of Monitor gain and overall headphone gain
Split ear function via DIP switches
Internal battery power (two-AA)
Excellent battery life with alkaline and NiMH rechargeable batteries
External 5-17 VDC powering (plug included)
High-strength aluminum chassis with durable belt clip
Power: 2 AA batteries or external 5-18 VDC
Dimensions (WDH): 166 x 95 x 49 mm
Weight (without batteries): 700 g


USBPre 2 Portable High-Resolution Audio Interface


Portable, battery-powered microphone preamplifier with phantom power


Portable, Battery-Powered Headphone Distribution Amplifier