MP-1

Battery-powered single-channel microphone preamplifier

Overview

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

Battery-powered single-channel microphone preamplifier, with 48 V phantom, limiter, and high-pass filter. Powered from 2-AA batteries.

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

Designed for high-definition field production environments, the MP-1 is an ideal studio-quality mic pre 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.

Simple to Use

The MP-1 provides up to 66 dB of clean, nearly noiseless gain. Its transformer-balance microphone preamplifier offers a two-position highpass filter, extended range, selectable peak limiter, and 48 V phantom power, ensuring superior sonic quality and freedom from interference problems.

2 Year Warranty

One-year standard warranty turns into two-years upon registration.
Click Here for more information.

What’s in the box:

  • MP-1 Mic Preamp
  • 4 Adhesive rubber “bumpers”

Specifications

Click on each group to expand. Specifications are subject to change without prior notice.

Analog Inputs
  • 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
  • +2- 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 hour 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

Support

Product Registration

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Repair Request

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Downloads

No firmware downloads available