VAC Sigma Specifications Page 1

Valve Amplification CompanyVAC Sigma PreamplifierInstructionsManual issued - 3 March 2008Revised 2 April 2008Please read carefully before instal

SIGMA PREAMPLIFIER REGISTRATIONmail to VAC soon as possible.Name______________________________________________________________Address_________________

Page 2WELCOMECongratulations on your purchase of the VAC Sigma Preamplifier, and welcome to thefamily of VAC owners!Your VAC is designed not to the la

Page 3GENERAL PRECAUTIONS & SAFETY NOTES1. DANGEROUS VOLTAGES EXIST WITHIN THE CHASSIS. DO NOT REMOVECHASSIS COVER UNTIL UNIT HAS BEEN SWITCHED OF

Page 4INSTALLING THE SIGMA PREAMPLIFIERPhysical requirements:1)Provide Adequate Ventilation.2)The chassis cover will become warm during normal use.3)

Page 5OPERATING THE SIGMA PREAMPLIFIERFront Panel Controls:Although most of the front panel controls (Volume, Power, Mute) are self explanatory, VACha

Page 6“Mute” and “Operate” condition. When muted, a red glow will be observed in the LED. Onoccasion the preamplifier may seem not to have responded t

Page 7MAINTENANCEChassis Care:Although your VAC chassis and faceplate are extremely durable, their finish can bescratched, chipped or damaged if impro

Page 8GENERAL INFORMATION ABOUT TUBESIt is a truth that each brand of tube sounds different in a particular high resolution circuit.This is because no

Page 9VAC SIGMA PREAMPLIFIER SPECIFICATIONS (typical)Type:Vacuum tube line stage with home theater (direct poweramplifier) mode.Options:Remote control