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Aphex USB 500 Rack User Manual

Page 14

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USB 500 Rack

14

S/PDIF 1
S/PDIF 2

NOTES to Pro Tools 9, 10 and 11 users:

When switching to the USB 500 Rack from another interface, you
must have that interface connected when launching Pro Tools for the
first time with the USB 500 Rack connected. Once Pro Tools has rec-
ognized it, the other interface may be left connected or disconnected.
Pro Tools will not launch properly if the interface it is expecting is not
connected.
Pro Tools 9 and 10 require the DAW to be exited and relaunched
when changing the hardware buffer size. Pro Tools 11 does not
unless Ignore Errors During Playback/Record is checked in the Play-
back Engine window.
Pro Tools will take control of the USB 500 Rack driver. Leave the
Lock Sample Rate checkbox in the driver control panel unchecked.

If you experience difficulty trying to set up your I/O with the USB 500
Rack, try this trick:
• Open Pro Tools.
• When the Pro Tools launch screen becomes visible, hold down
the

“N”key

on your keyboard. This allows you back door access

to the playback engine.
• Select the USB 500 Rack as your device and continue.
• Once Pro Tools finishes launching go to the Setup menu and
select

I/O.

• Select the Input tab, delete all input paths and then select
New

Path.

• Create 1 Mono Input and click Create. This path will be named
“Input.” You can double-click it and name it “USB 500 Rack.”
• Now click the box just right of “Mono,” under the ApMX icon.
An “M” will appear. Click OK.
• Now click the Output tab, delete all of the output paths and
select

Default.