MM-1 Microphone Preamplifier with Headphone Monitor

MM-1 Microphone Preamplifier with Headphone Monitor
SOUND
DEVICES
MM-1
Microphone Preamplifier
with Headphone Monitor
Description
Features
The portable MM-1 combines microphone preamplification and
headphone monitoring in one compact product. Designed for
demanding radio, television, and multimedia productions, the
MM-1 is a no-compromise, studio-quality microphone preamplifier with phantom power, high-pass filter, and built-in limiter.
Its monitoring function provides a headphone level signal of
microphone audio and an external, balanced line-level signal.
The MM-1 is at home in the most complex broadcast remotes,
theatrical productions, and intercom setups.
High Performance Microphone Preamplifier
• Maximum of 66 dB of gain in eleven steps for accurate,
repeatable gain settings.
• Wide dynamic range and audio bandwidth.
• High immunity to RF interference.
• Transformer-balanced input and output using premium Lundahl
input transformer and custom-designed output transformer.
• High-current line output driver capable of driving very long cable
runs.
• Two-position high pass filter at 80 Hz and 160 Hz.
• Selectable 48-volt or 12-volt phantom, or T-powering.
• Virtually “unclippable” dual-stage opto-isolator peak limiter.
The MM-1 is built to Sound Devices high standards of audio
and mechanical quality and will provide years of performance
under the most punishing field conditions.
www.sounddevices.com
Flexible Headphone Monitoring
• Monitor preamp audio and line-level monitor audio.
• Front panel headphone connector.
• Front panel headphone level control.
• Separate, front panel monitor level control.
Durable Mechanical Construction
• Easy access battery compartment (2 x AA) with external DC
power connector (5 - 17 VDC).
• High-strength extruded aluminum chassis with metal knobs and
protective end rails.
• Removable belt clip for easy mounting.
SOUND
DEVICES
MM-1
Microphone Preamplifier
with Headphone Monitor
FRONT PANEL
BACK PANEL
Gain:
(Mic - Line)
Gain Accuracy
(Mic - Line)
0 dB to 66 dB input to output, switch selectable
+0.6, -0.1 dB with reference to front panel gain markings
(150 ohm source, 100 k load impedances)
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)
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
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
Common Mode Rejection
Ratio:
100 dB minimum at 80 Hz
60 dB minimum at 10 kHz
BLOCK DIAGRAM
SOUND DEVICES
Sound Devices, LLC
300 Wengel Drive, P.O. Box 576
Reedsburg, Wisconsin 53959 USA
tel: (608) 524-0625 fax: (608) 524-0655
www.sounddevices.com
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement