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Sound devices MP-1

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Sound Devices MP-1

The MP-1: Portable, battery-powered microphone preamplifier with phantom power

Designed for high-definition field production environments, the studio-quality MP-1 is an ideal line-driver for critical radio, television, and film applications.

The MP1 is extremely durable and easy to use. With rugged mechanical and electrical construction and high-quality components it will provide years of superb audio performance under the most punishing field conditions.

MP-1 Specifications

Equivalent Input Noise

-126 dBu (-128 dBV) maximum (150 ohm source, flat weighting, 22 - 22 kHz bandwidth, gain control set at 50% or higher, phantom power off)
Output Clipping Level (Line)

+22 dBu minimum with 100k ohm load, +20 dBu minimum with 600 ohm load
Dynamic Range

110 dB minimum
THD + Noise

0.05% maximum (from 60 Hz to 22 kHz @ +4 dBu output level, 22 Hz - 22 kHz filter bandwidth, gain control at 50%, phantom off)
Inputs

Transformer-balanced, 2k ohm input impedance
Outputs (XLR)

s/n < 0507 - impedance-balanced, 120 ohm output impedance, s/n >0507 - active-balanced, 120 ohm output impedance
Outputs (Tape)

Unbalanced, tip-left, ring-right, sleeve-ground, 2.4k ohm output impedance
Power (Internal)

2 AA alkaline batteries, 6 hours life typical with +4 dBu signal into 600 ohms, no phantom power
Power LED

Green indicates power and good battery. Red indicates power and low battery. LED turns red when approximately 1 hour of battery life remain (with phantom power off). Green with external DC power.
Frequency Response

20 Hz - 30 kHz, +0.1, -0.5 dB; -1 dB at 5 Hz & 50 kHz (relative to 1 kHz with 150 ohm source, gain controls set at 50%)
Input Clipping Level

-10 dBu minimum
Output Clipping Level (Tape)

+11 dBu (2.75 V RMS) minimum with 100k ohm load
Common Mode Rejection Ratio

100 dB minimum at 80 Hz, 60 dB minimum at 10 kHz
Channel Separation

Greater than 80 dB at 1 kHz (gain controls set to 50%)
High-Pass Filters

80 Hz or 160 Hz (switch selectable), 6 dB per octave
Phantom Power

48 V through 6.8k resistors or 15 V through 680 ohm resistors (switch selectable)
Limiter

Thresholds adjustable per channel from -10 dBu to +17 dBu, 10:1 limiting ratio, 5 mS attack time, 100 mS release time, Amber/Red LED indicates limiting/clipping, Dual mono or stereo linked
Internal Voltage Rails

±15 V, regulated
Polarity

All inputs to all outputs, non-inverting. Pin-2 of XLRs "hot" to unbalanced inputs and outputs.
Metering

Seven segment GaN (Gallium Nitride) LED meter with three intensities, peak responding
Operating Temperature Range

0 to 70 degrees C, 32 to 160 degrees F
Dimensions

43 mm x 94 mm x 140 mm (h x w x d), (1.7" x 3.7" x 5.5")
Weight (unit only)

0.8 kg, 2.0 lbs.
Weight (packaged)

1.2 kg, 3.0 lbs.