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dbx Pro 386 user manual Installation Recommendations, Introduction, User Manual

Models: 386

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	Introduction	386
	Introduction

0.4 Installation Recommendations

Install the 386 in your rack with the provided rack screws. It is essential that when the 386 is being mounted in a rack mounting enclosure, the unit should be positioned with enough room (at least one centimeter at the top and one centimeter at the bottom of the unit) to allow prop- er ventilation. The 386 should not be mounted above or below anything that generates exces- sive heat. Ambient temperatures should not exceed 1130F (450C) when equipment is in use. Although the unit is shielded against radio frequency and electromagnetic interference, extreme- ly high fields of RF and EMI should be avoided where possible.

iii	386 User Manual

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dbx Pro 386 user manual Installation Recommendations, Introduction, User Manual

Contents

Tube Preamp Dual Vacuumw/Digital Out User ManualIMPORTANT SAFETY INSTRUCTIONS SAFETY INSTRUCTIONSWIRE COLOR CLEAN ONLY WITH A DAMP CLOTHLITHIUM BATTERY ELECTROMAGNETIC COMPATIBILITYU.K. MAINS PLUG WARNING ADVARSELTable of Contents Table of Contents 386 User ManualIntroduction Section 1 - Getting Started386 DEFINED INTRODUCTIONWARRANTY INFO CUSTOMER SERVICE INFOIntroduction 0.1 Defining theSelectable mic/line switch 48 volt phantom power 20 dB pad 75 Hz low cut filter Phase reverse0.2 Service Contact Info 0.3 WarrantyIf you require technical support, contact dbx Customer Service. Be prepared to accurately describe the problem. Know the serial number of your unit - this is printed on a sticker attached to the rear panel. If you have not already taken the time to fill out your warranty registration card and send it in, please do so now Introduction0.4 Installation Recommendations Install the 386 in your rack with the provided rack screws. It is essential that when the 386 is being mounted in a rack mounting enclosure, the unit should be positioned with enough room at least one centimeter at the top and one centimeter at the bottom of the unit to allow prop- er ventilation. The 386 should not be mounted above or below anything that generates exces- sive heat. Ambient temperatures should not exceed 1130F 450C when equipment is in use. Although the unit is shielded against radio frequency and electromagnetic interference, extreme- ly high fields of RF and EMI should be avoided where possibleIntroduction 386 User ManualSection GettingStarted Getting StartedPower Switch IEC Power Cord ReceptacleAES/EBU Digital Connector S/PDIF Digital ConnectorLine Select Switch +48 Volt Switch20db Pad Switch Phase SwitchMeter Select Switch Dither SwitchShape Switch Sample Rate SwitchAPPLICATIONS ANALOG APPLICATIONSANALOG SectionAnalog Applications 2.1 Basic Analog Connection of the2.2 Connection to a Mixing Console Section2.3 Direct Connection to a Recorder SectionAnalog Applications 1. Make microphone connections, being careful to keep the DRIVE control in the minimum +30 dB positionPage DIGITAL APPLICATIONS DIGITALSection APPLICATIONSDigital Applications 3.1 Digital Output Front Functions of the 3.2 Digital Output Rear Panel ConnectionsDither Switch Shape SwitchDigital Applications 3.3 Sync Input Sample Rate SelectionAES/EBU Digital Connector S/PDIF Digital ConnectorFront Panel Digital Output Features 3.4 Direct Connection to a DAW CPURear Panel Connections SectionSection Direct Connection to a Digital MixerFront Panel Digital Output Features Digital ApplicationsDigital Applications 3.6 A/D Conversion Front Panel Digital Output FeaturesSection Rear Panel ConnectionsMulti-Tracking to Digital Front Panel Digital Output FeaturesSection Digital ApplicationsDigital Applications 3.8 Analog and Digital Output Application Front Panel Digital Output FeaturesSection Rear Panel ConnectionsAPPENDIX SpecificationsSync Input Info Block Diagram APPENDIXAppendix A Sync Input InfoSync Input Info 386 User ManualDiagram Appendix B Block DiagramBlock 386 User ManualAppendix C dbx Type IV Conversion System White PaperType IV White Paper by Roger Johnson386 User Manual Appendix CType IV White Paper 386 User Manual Appendix CType IV White Paper Figure 3a - Signal Having Low and High Frequency Content Figure 3b - Signal of Fig. 3a Going Beyond the A/D Clip LevelAppendix C Type IV White PaperHigh-Frequency Information Completely Lost High-Frequency Content A/D Clip Level Low-Frequency ContentAppendix C Type IV White PaperAppendix D AppendixD.2 Truncation D.1 Noise-Shaping AlgorithmsAppendix D.3 SpecificationsAppendix D Questions or comments? Email us at customer@dbxpro.com or visit our World Wide Web home page atA Harman International Company 8760 South Sandy Pkwy Sandy, Utah Phone 801 Fax 801 Int’l Fax 603