Owner manual

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Data Sheet-1

MS 1a

MICROPHONE STAGE

General Description

The Rane MS 1a Mic Stage preamplifier provides the

answer when you need just one microphone input in an

otherwise line-level world. Give us a call to go from either a

dynamic, condenser or electret microphone to a line-level

input with a minimum of noise, distortion, cost and hassle.

The MS 1a provides 48 V switchable Phantom Power with

indicator LED, continuous rotary Gain trim between 21.5 dB

and 66 dB, Signal/Overload LED, and XLR balanced Input &

Output connectors. A Polarity switch and high-current cross-

coupled output line driver round out the features.

The MS 1a utilizes one of the finest ultra low noise

amplifier designs available. Featuring a true differential input

with high common-mode rejection, use of the MS 1a guaran-

tees performance usually found only in mixing consoles

costing thousands of times as much. Of course, for all of that

extra money you receive a proportional increase in KPSI

(knobs per square inch).

Features

• Gain Control

• Signal and Overload Indicators

• Polarity Switch

• Switchable 48 V Phantom Power

DATA SHEET

• Ultra Low Noise Design

• True Differential Input

• Cross-Coupled Line Driver

• UL/CSA/CE and 100/120/230 VAC Remote Power Supply

Summary of content (4 pages)

PAGE 1
DATA SHEET MS 1a MICROPHONE STAGE General Description The Rane MS 1a Mic Stage preamplifier provides the answer when you need just one microphone input in an otherwise line-level world. Give us a call to go from either a dynamic, condenser or electret microphone to a line-level input with a minimum of noise, distortion, cost and hassle. The MS 1a provides 48 V switchable Phantom Power with indicator LED, continuous rotary Gain trim between 21.
PAGE 2
MS 1a MICROPHONE STAGE Features and Specifications Parameter Input Impedance Gain Range Phantom Power ..........Impedance ..........Load Regulation ..........RMS CM Noise Max. Input Level ..........Max. Input Level Equivalent Input Noise Signal to Noise Ratio Dynamic Range CMRR Frequency Response ..........Gain 60 dB ..........Gain 21.5 dB THD+Noise (gain 60 dB) THD+Noise (gain 21.5 dB) Line Driver Max.
PAGE 3
MS 1a MICROPHONE STAGE Block Diagram Application Information Uses and applications for the MS 1a should be obvious. But then again, its obvious to us our taxes are too high and nothing is being done about that. With this in mind, perhaps a few words on using the MS 1a might not be wasted. BALANCED USE The MS 1a provides a true cross-coupled balanced output. This is equivalent to an electronic simulation of a transformer output. Rane follows the AES standard of pin 2 = hot.
PAGE 4
MS 1a MICROPHONE STAGE Architectural Specifications The microphone preamplifier shall be a single channel stand-alone unit with remote power supply. The power supply shall be U.L. listed, C.S.A. certified, and CE certified. The input and output shall be fitted with XLR connectors. A polarity inverting switch shall be included. Phantom power shall be provided in compliance with DIN 45596 & IEC 26815 and be controlled by a slide switch with an LED indicator. A gain control shall be provided with 21.