Universal Audio 2108 Operations Instructions

Model 2108Microphone PreamplifierUniversal Audio Part Number 95-0009Revision 1.20Universal Audio, Inc.www.uaudio.comPO Box 3800Santa Cruz, CA 95063-38

Input/Output ConnectorsStandard XLR input and output connectors are provided on the rear panel. Pin 2 is wiredpositive (hot) on the MIC INPUTS. Pin 2

Voltage SelectorThe 2108 can operate at 120 V or 240 V. To change the mode, unplug the AC powercord from the DC-30 Power Supply. Remove the top cover.

HistoryBill Putnam Sr. was awarded the 2000 Technical Achievement Grammy for his multiplecontributions to the recording industry including the design

The 2108 Microphone PreamplifierThank you for purchasing the 2108 Dual Channel Microphone Preamplifier. The 2108 wasinspired by the 1108 line amp deve

Water and Moisture – Do not use the unit nearany source of water or in excessively moistenvironments.Object and Liquid Entry – Care should be takenso

NoticeThis manual provides general information, preparation for use, installation and operatinginstructions for the Universal Audio 2108 Microphone Pr

Table of ContentsThe 2108 Microphone Preamplifier... ii2108 Specifications

2108 SpecificationsMicrophone Input Impedance Selectable, 1 kΩ or 4 kΩHi-Z Input Impedance Selectable, 58 kΩ or 2 MΩMaximum Microphone Input Level +8

Operating InstructionsThe 2108 is a two-channel, solid state microphone / instrument preamplifier. Each channelhas two gain stages operating in a clas

LevelThe Level knob is the master volume control. It determines the amount of signal from thepreamplifier gain stage sent to the output stage. The cle

Output Input (Signal)The Signal Output Input push button selects which amp stage the Signal indicator ismonitoring. When the button is pushed in, the