User Manual

MP-1 Microphone Preamplifier

User Guide and Technical Documentation

page 4

General Description

Sound Devices’ MP-1 is a portable, battery-powered microphone preampliﬁ er with phantom power. De-

signed for high-resolution ﬁ eld production, this studio-quality mic pre is ideal for critical radio, televi-

sion, 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 set-

tings

• 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 interfer-

ence problems

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

ence 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 punish-

ing 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