Alesis EC-2 instruction

EC-2

96kHz Sample Rate Upgrade

A/D and D/A Converter Cards

for the ADAT HD24 Hard Disk Recorder

OWNER’S MANUAL

VERSION 1.0

APPLIES TO ADAT HD24 SOFTWARE VERSION 1.05 AND ABOVE

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Alesis EC-2 owner manual

Contents

EC-2 EC-2 96kHz A/D/D/A upgrade appendix a Index Table of Contents CE Declaration of Conformity About the EC-2 Precautions Installing the EC-2 into the HD24Packing List Overview HD24 interior with original A/D/A PCBs Prepare to installRemove the existing converter PCBs and cables HD24 with EC-2 installed Install the new EC-2 PCBs To test for proper installation Using the EC-2Connect the PCBs About 96kHz/88.2kHz Sampling Operation Synchronizing at high sample rates Inputs and OutputsSynchronizing two HD24s at different sample rates Why 44.1/48 kHz? When to use 88.2/96 kHzAbout the EC-2’s audio performance Converter defines the sound Digital oversampling filters Can you hear it? Extending the frequency range of other studio equipment Latency High sample rate operation Using the AI-4 at 88.2/96 kHz Using the HD24/EC-2 with the Alesis AI-4 AES/EBU InterfaceWord clock Specifications