appendix A

EC-2 Manual A-1
EC-2 96kHz Upgrade Cards
This document covers only those aspects unique to the EC-2 cards and should be kept with the HD24 manual.

Table of Contents

Important Safety Instructions................................ 2
Safety symbols used in this product.......................2
CE Declaration of Conformity................................2
About the EC-2.....................................................2
Installing the EC-2 into the HD24...........................3
Using the EC-2 .....................................................6
Inputs and Outputs...............................................7
About the EC-2’s audio performance......................8
When to use 88.2/96 kHz......................................8
Extending the frequency range of other studio
equipment....................................................10
Using the HD24/EC-2 with computer
workstations and digital mixers..................... 11
Using the HD24/EC-2 with the Alesis AI-4
AES/EBU Interface....................................... 12

Specifications......................................................... 13

Index

12-channel operation................................................6
AES/EBU Digital Audio Interface...........................12
Analog Input (A/D) board.......................................5
Analog Output (D/A) board.................................... 5
Antialiasing filters................................................... 8
anti-static
during installation............................................. 4
converters............................................................... 8
daughterboard ........................................................3
DC power cable.......................................................6
Digital inputs and outputs
at high sample rates...........................................6
digital mixers
at high sample rates......................................... 11
dynamic range.........................................................8
Latency................................................................. 11
level change
in unbalanced input...........................................7
low-pass filters...................................................... 10
MasterLink
exporting to.....................................................12
microphones .........................................................10
MIDI sequencer.......................................................2
mixing consoles..................................................... 10
monitors
at 96 kHz.........................................................10
Nyquist theorem......................................................8
oversampling filters.................................................9
phase response........................................................9
sample rates
about................................................................ 8
software
upgrade............................................................ 2
Synchronizing......................................................... 7
Word clock............................................................12
workstations..........................................................11