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Sound Device Portable Audio Tools MP-1

: Sound Device Portable Audio Tools MP-1

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Description

Designed for high-definition field production applications, the Sound Devices MP-1 is a single channel microphone preamp that delivers studio grade audio in a portable, lightweight package. The unit features a transformer balanced XLR microphone input and line level output resulting in high gain and low noise floor. A large gain adjustment dial provides up to 66dB of gain in eleven discrete steps.

A 3-position phantom power switch enables 12 Volt or 48 Volt phantom power for condenser microphones. A low-cut filter switch eliminates noise due to wind and proximity effect at 80Hz or 160Hz (user switchable). Peak limiter switch moderates signal peaks, eliminating distortion due to signal over load. The MP-1 is powered with 2 AA batteries for approximately 24 hours.

Transformer Balanced I/O
The MP-1 features a transformer balanced XLR microphone input and line level output resulting in high gain and low noise floor.
Variable Gain
A large gain adjustment dial provides up to 66dB of gain in eleven discrete steps.
Compact & Portable
The unit measures approximately 3" wide and 5" in depth and operates on 2-AA alkaline batteries for up to 24 hours (typical).
Peak Limiter & Low-Cut Filter
Peak limiter switch moderates signal peaks, eliminating distortion due to signal over load. A low-cut filter switch eliminates noise due to wind and proximity effect at 80Hz or 160Hz (user switchable).

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 +18 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.

Certifications

  • Meets FCC Part 15 Class B, eligible to bear CE mark

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