Aphex 1100 MkII Owner's Manual

Page A-1Owner’s ManualCopyright 2003 Aphex Systems Ltd. All rights reserved. No portion of this manual may be reproduced without permission.AphexTherm

AphexThermionics - Division of Aphex Systems Ltd.Page 1-4Model 1100 MkII Front Panel SummaryPage 1-4Front Panel Features1 2 3 4 5 6 7 8 23 9 12 13 14

AphexThermionics - Division of Aphex Systems Ltd.Page 2-180-260V~ 50-60Hz22 WattsPOWERLine OutMicInCh2DigitalAudio24-BitsWord ClockAES/EBUCHASSISGROUN

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s Manualor from a matched impedance master clocking distribu

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s ManualThe transformerless active balanced line output is provide

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s Manualtances become the dominating noise resistance, thus the

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s ManualThe fact is that, as long as the hum and noise is induced

AphexThermionics - Division of Aphex Systems Ltd.Page 2-6Model 1100 MkII Back Panel SummaryBack Panel Features80-260V~ 50-60Hz22 WattsPOWERLine Out Mi

AphexThermionics - Division of Aphex Systems Ltd.Can you imagine if you could have a preamp that wouldn’t be overloaded by an unpredictable live perfo

AphexThermionics - Division of Aphex Systems Ltd.required to devise a stable MicLim control loop with such a fast and accurate response. Previo

AphexThermionics - Division of Aphex Systems Ltd.Page 4-1Interfacing & Cables 4Model 1100 MkII Mic Preamp - Owner’s ManualBecause of its impedance

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s ManualDeclarationsA MESSAGE FROM THE PRESIDENTDear Aphex Custome

AphexThermionics - Division of Aphex Systems Ltd.very well in any studio wiring scheme because its output is impedance balanced. However, should you

AphexThermionics - Division of Aphex Systems Ltd.Page 5-1Installation Instructions5Model 1100 MkII Mic Preamp - Owner’s Manual5.2 Damage & ClaimsI

AphexThermionics - Division of Aphex Systems Ltd.Page 5-2Installation Instructionsout experiencing hum problems. 5.9 Lightning ProtectionThe Model 110

AphexThermionics - Division of Aphex Systems Ltd.Page 6-1Service & Warranty6Model 1100 MkII Mic Preamp - Owner’s Manual6.1 Obtaining ServiceUnits

AphexThermionics - Division of Aphex Systems Ltd.PERIODOne year from date of purchaseSCOPEAll defects in workmanship and materials. The following are

AphexThermionics - Division of Aphex Systems Ltd.Page 7-1Specifications7Model 1100 MkII Mic Preamp - Owner’s ManualPower Power Requirements: 22 WattsL

AphexThermionics - Division of Aphex Systems Ltd.Digital Audio Specifications Output Resolution: 24-BitsOutput Sample Rate: 44.1, 48, 88.2, 96, 192 KH

AphexThermionics - Division of Aphex Systems Ltd.Page 8-1Tube Topics8Model 1100 MkII Mic Preamp - Owner’s Manual8.1 Tube ChoiceThe design of the M

AphexThermionics - Division of Aphex Systems Ltd.7247, 7318, 7728, 77298.5 Tube LifeIt is unlikely you will ever have to replace the tubes in

AphexThermionics - Division of Aphex Systems Ltd.White Paper9Page 9-1Synopsis: An extraordinary mic preamp combining new design philosophies allows yo

AphexThermionics - Division of Aphex Systems Ltd.Thermionics refers to the practical use of the “therm-ionic emission of electrons”. Vacuum

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s ManualPage 9-2White PaperIV. Designing the Aphex Model 1100 MkII

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s Manualtortion. The Model 1100 MkII uses high-grade, bifurcated (

AphexThermionics - Division of Aphex Systems Ltd.2. Tube, Discrete Class A Differential Second StageThe unique, Aphex patented, "Reflected Plate

AphexThermionics - Division of Aphex Systems Ltd.Appendix A10Word Clock CablingTransmission SystemsThere are basically two systems in use for distrib-

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s Manualclock with almost no loading from the 1100 MkII. If using

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s Manualthe transmission characteristics. Maximum Brute Force c

NotesModel 1100 MkII Mic Preamp - Owner’s Manual

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s Manual1Mic Input2Phantom Power Source3MicLim Element420dB Pad5Ph

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s ManualPage A-5IntroductionThe Model 1100 MkII is an extraordinar

AphexThermionics - Division of Aphex Systems Ltd. Declarations1A-1Front Panel FeaturesBack Panel FeaturesUnderstanding & Using MicLimInterfacing &

AphexThermionics - Division of Aphex Systems Ltd.Page 1-11.1 The 20dB PadThis button turns the pad on and off. A light above the button te

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s Manualproprietary limiting module acting directly upon the micro

AphexThermionics - Division of Aphex Systems Ltd.Model 1100 MkII Mic Preamp - Owner’s ManualWith LoCaf you get as much as 20dB of improved headroom b