Sound Devices MP-1 User manual

MP-1

Microphone Preamplifi er

User Guide and Technical Information

Sound Devices, LLC

300 Wengel Drive
Reedsburg, WI 53959 USA
Voice [phone]
Fax [phone]
www.sounddevices.com

©2001–2007 Sound Devices, LLC

MP-1 Microphone Preamplifier

User Guide and Technical Documentation

General Description

Sound Devices’ MP-1 is a portable, battery-powered microphone preamplifi er with phantom power. De­signed for high-resolution fi eld production, this studio-quality mic pre is ideal for critical radio, televi­sion, and fi lm production applications.

With its rugged mechanical and electrical construction, compact size and high-quality components, the
MP-1 will provide years of superb audio performance under the most punishing fi eld conditions.

Features

Audio Performance

• Maximum of 66 dB of gain, adjustable in eleven discrete steps for accurate, repeatable gain set­tings

• Dynamic range exceeding 120 dB

• 20 Hz to 50 kHz audio bandwidth

• High immunity to RF interference due to transformers, RF fi ltering, and all-metal construction

• High current line output driver capable of driving very long cable runs

Transformer-Balanced

• Premium quality input transformer provides superior sonic quality and freedom from interfer­ence problems

• Custom-designed output transformer provides line driving ability with freedom from interfer­ence problems

Limiter

• Extended range peak limiter via dual opto-isolators makes unit virtually “unclippable”

Battery Powered

• Internal battery power (two AA) for convenient, low cost power

• Battery life greater than 24 hours (phantom power off)

Durable Mechanical Construction

• High strength extruded aluminum chassis with protective metal end rails to withstand punish­ing fi eld conditions

• Easy access battery compartment for quick battery changes

Phantom Power

• Selectable 48-volt and 12-volt phantom power for condenser and dynamic microphones

High-Pass Filter

• Two selectable corner frequencies, 80 and 160 Hz, 6 dB per octave

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Specifi cations

Frequency Response:

Gain:

Gain Accuracy:

Equivalent Input Noise:

Output Clipping Level:

Input Clipping Level:

Dynamic Range:

THD + Noise:

Common Mode Rejection Ratio:

Input:

20 Hz to 22 kHz, +0.1, -0.5 dB, –1 dB at 50 kHz (relative to 1 kHz level with 150 ohm source)

+1

+0

-1

-2

d
B

-3

u

-4

-5

-6
10 100k20 50 100 200 500 1k 2k 5k 10k 20k 50k

Hz

0 dB to 66 dB input to output, switch selectable

+0.6, –0.1 dB with reference to front panel gain markings

(150 ohm source, 100k ohm load impedances)

–126 dBu (–128 dBV) minimum

(150 ohm source, fl at weighting, 22–22 kHz bandwidth, gain setting 36 dB or greater

+22 dBu minimum with 100k ohm load
+20 dBu minimum with 600 ohm load

+4 dBu minimum at the 0 or +18 dB gain setting

122 dB minimum at the +18 dB gain setting

0.05% maximum (from 50 Hz – 22 kHz @ +4 dBu output level, +46 dB gain setting)

100 dB minimum at 80 Hz
60 dB minimum at 10 Hz

Transformer-balanced, 2000 ohm input impedance

Output:

Low Cut:

Phantom Power:

Limiter:

Internal Voltage Rails:

Power:

Power LED:

Polarity:

Operating Temperature Range:

Dimensions:

Weight: (unit only):

Certification:

Transformer-balanced, 130 ohm output impedance

80 Hz or 160 Hz (switch selectable), 6 dB per octave

12-volt or 48-volt (switch selectable) per DIN 45 596 specification

Limits to +17 dBu output level 10:1 limiting ratio; 5 mS attack time, 100 mS release time;

Amber/Red LED indicates limiting/clipping

±15 V, regulated

2 AA batteries, 24 hours life typical with +4 dBu signal into 600 ohms, no phantom power.

Green indicates power and good battery. Red indicates power with low batteries. LED turns red when
approximately 4 hours of battery life remain.

Mic input to line output is non-inverting

0° to 70° C 32° to 160° F

43 mm x 94 mm x 140 mm (h x w x d)
(1.7” x 3.7” x 5.55”)

0.56 kg, 1.24 lbs (unit only)

0.86 kg, 1.90 lbs (packaged)

Meets FCC Part 15 Class B
Eligible to bear CE mark (see conformance statement)

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