Portable, battery-powered microphone preamplifier with phantom power
Designed for high-definition field production environments, the full-featured studio-quality MP-1 is an ideal line-driver for critical radio, television, and film applications.
The MP-1 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.
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
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)
Frequency Response:
20 Hz - 22 kHz, +0.1, -0.5 dB, -1 dB at 50 kHz (relative to 1 kHz level with 150 ohm source)
Equivalent Input Noise:
-126 dBu (-128 dBV) maximum (150 ohm source, flat weighting, 22 - 22 kHz bandwidth, gain setting 36 dB or greater)
Output Clipping Level:
+22 dBu minimum with 100k ohm load; +20 dBu minimum with 600 ohm load
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 60 Hz to 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
Input:
Transformer-balanced, 2000 ohm input impedance
Output:
Transformer-balanced, 130 ohm output impedance
Phantom Power:
12V or 48V (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
High-Pass Filter:
80 Hz or 160 Hz (switch selectable), 6 dB per octave
Internal Voltage Rails:
+15 V and -15 V, regulated
Operating Temperature Range:
0 to 70 degrees C (32 to 160 degrees F)
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
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):
0.56 kg (1.24 lbs.)
Weight (packaged):
0.86 kg (1.90 lbs.)
Certification:
Meets FCC Part 15 Class B, Eligible to bear CE mark |
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