Sound Devices MP-1 Battery-Powered Single-Channel Mic Pre
The MP-1 is a battery-powered, single-channel microphone preamplifier, featuring 48V phantom power, a precision limiter, and a high-pass filter for optimal audio control. Powered by 2 AA batteries, this portable mic preamp is engineered specifically for high-definition field production, making it ideal for professional applications in radio, television, and film.
Built to withstand the toughest conditions, the MP-1 offers exceptional durability and ease of use. With its rugged construction and premium components, this preamp delivers reliable, studio-quality sound in any environment, ensuring years of top-tier audio performance.
MP-1 Key Features
- Superb audio specifications
- 66 dB of gain, in eleven discrete steps
- Transformer-balanced input and output
- Phantom power – 48 volt or 12 volt
- High pass filter @ 80 Hz or 160 Hz, 6 dB/octave
- Limiter makes unit virtually “unclippable”
- High current line output drive
- Excellent immunity to RF interference.
- Battery power (two x AA)
- Durable mechanical construction
Specifications
| Frequency Response |
20 Hz to 22 kHz, +0.1, -0.5 dB; -1 dB at 50 kHz (relative to 1 kHz level with 150 ohm source) |
| Gain |
0 dB to 66 dB input to output (switch selectable) |
| Gain Accuracy |
+0.6, -0.1 dB with reference to front panel gain markings (150 ohm source, 100k ohm load impedances) |
| Equivalent Input Noise |
-126 dBu (-128 dBV) maximum (150 ohm source, flat weighting, 22 – 22 kHz bandwidth, gain setting 36 dB or greater) |
| Input Clipping Level |
+4 dBu minimum at the 0 or +18 dB gain setting |
| Dynamic Range |
122 dB minimum at the +18 dB gain setting |
| THD + Noise |
0.05% maximum (from 50 Hz to 22 kHz @ +4 dBu output level, +46 dB gain setting) |
| Common Mode Rejection Ratio |
100 dB minimum at 80 Hz, 60 dB minimum at 10 kHz |
| Input |
Transformer-balanced, 2k ohm input impedance |
| Low Cut |
80 Hz or 160 Hz (switch selectable), 6 dB per octave |
| Phantom Power |
12 V or 48 V (switch selectable) per DIN 45 596 specification |
| Limiter |
Limits to +17 dBu output level 10:1 limiting ratio; 5 mS attack time, 100 mS release time; Amber/Red LED indicates limiting/clipping |
| Output Clipping Level |
+22 dBu minimum with 100k ohm load; +20 dBu minimum with 600 ohm load |
| Output |
Transformer-balanced, 130 ohm output impedance |
| Internal Voltage Rails |
±15 V, regulated |
| Power |
2 AA batteries, 24 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 4 hours of battery life remain. |
| Polarity |
Mic input to line output is non-inverting |
| 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 5.55″) |
| Weight (unit only) |
0.56 kg, 1.24 lbs. |
|
Weight (packaged) |
0.86 kg, 1.90 lbs. |
| Certifications |
Meets FCC Part 15 Class B, eligible to bear CE mark |
What’s in the box
- MP-1 Mic Preamp
- 4 Adhesive rubber “bumpers”
