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EC-2 owner manual
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EC-2 96kHz A/D/D/A upgrade
• appendix A
EC-2 Manual
© 2002 Alesis. All rights reserved. Reproduction in whole or in part is prohibited. Specifications Subject To
Change Without Notice.
7-51-0107-A
6/2002
Contents
Main
Page
appendix A
EC-2 96kHz Upgrade Cards
Table of Contents
Specifications......................................................... 13 Index
A-2
Important Safety Instructions Safety symbols used in this product
CE Declaration of Conformity
About the EC-2
Installing the EC-2 into the HD24
Precautions
Packing List
Overview
Tools required
Prepare to install:
Remove the existing converter PCBs and cables:
HD24 interior with original A/D/A PCBs
Drive 1 Drive 2
Install the new EC-2 PCBs
HD24 with EC-2 installed
A-6
Connect the PCBs
To test for proper installation
Using the EC-2
About 96kHz/88.2kHz Sampling Operation
Synchronizing at high sample rates:
Synchronizing two HD24s at different sample rates:
Inputs and Outputs
A-8
About the EC-2s audio performance
The converter defines the sound
When to use 88.2/96 kHz
Why 44.1/48 kHz?
The case for a higher sampling rate
Can you hear it?
A-10
Extending the frequency range of other studio equipment
Using the HD24/EC-2 with computer workstations and digital mixers
High sample rate operation
Latency
A-12
Using the HD24/EC-2 with the Alesis AI-4 AES/EBU Interface
Using the AI-4 at 88.2/96 kHz
Word clock
Specifications
For the Alesis HD24 with EC-2 96 kHz Sample Rate Upgrade A/D and D/A Converter Boards:
AUDIO INPUT
AUDIO OUTPUT
AUDIO PERFORMANCE