Product Overview
The MP-1 is a 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.
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 (H x W x D): 1.7" x 3.7" x 5.5" (43 x 94 x 140 mm)
- Weight: 1.24 lbs. (0.56 kg)
- Certification: Meets FCC Part 15 Class B, Eligible to bear CE mark
