26
then release the two push-buttons. Several seconds
later the Front Panel Display will indicate “FAC-
TORY RESET, -COMPLETE-” and the C2500 will
switch Off. Refer to figure 87.
2. Press the STANDBY/ON Push-button and the
C2500 will resume operation.
to the Microsoft
®
Windows
®
and Apple
®
Macin-
tosh
®
standards they should also work well when
used in conjunction with the C2500 USB Input.
If you are experiencing difficulty with a specific
computer hardware component or computer ap-
plication program, contact the manufacturer of
the product.
The C2500 Preamplifier Front Panel Display will
indicate the Bit and Sampling Rate of the incoming
digital signal. Refer to figure 85.
Reset of Microprocessors
In the unlikely event the controls of the C2500 stop
functioning, the microprocessors can be reset by per-
forming the following:
1. Press and hold the STANDBY/ON Push-button for
approximately ten seconds and then release.
2. To switch the C2500 back On press the On
STANDBY/ON Push-button.
Note: This can be performed with the C2500 On or in
the Standby Mode.
Resetting the C2500 to default settings
If it becomes desirable to reset all the adjustable set-
tings (Setup and Trim Settings) to the factory default
values, perform the following steps:
1. Press both the PROCESSOR and OUTPUT 2
Push-buttons until the Front Panel Display indi-
cates “FACTORY RESET”. Refer to figure 86,
USB Input Operation with a Computer
The C2500 USB-D/A Input provides the capability to
playback music from a computer, when the computer
is connected to the rear panel USB D/A connector.
The C2500 USB Input is compatible with both PC
Computers using Microsoft
®
Windows
®
(XP with
Service Pack 3, Vista with Service Pack 1 and Win-
dows 7) and the Apple
®
Macintosh
®
Computers using
OS-10.6 with the latest update.
When using a PC Computer with Windows, a spe-
cial McIntosh USB Audio Software Driver needs to be
installed on the PC Computer. The driver needs to be
installed before connecting the C2500 USB Input to
an USB Port on the computer.
Note: If an Apple Macintosh computer is used with the
C2500, no additional driver is required.
The McIntosh USB Audio
Windows Driver and Instal-
lation and Operation Guide
are available for download
from the McIntosh Web Site:
http://www.mcintosh-
labs.com/us/
support/Pages/
Manuals.aspx
Under “Product Cator-
gory” select Preamplifiers
and under “Model Number”
select C2500, then click on “Select”. When the C2500
Information appears, download the “McIntosh Audio
Windows Driver Installation and Operation Guide”
and “McIntosh USB Audio Windows Driver V_ . _”.
Follow the instructions in the Guide and after the
USB Driver is installed, connect the C2500 to the PC
Computer.
Note: When computer application programs and vari-
ous computer hardware components conform
How to Operate the C2500, con’t
Figure 85
SOURCE: USB-D/A
15% 24/96k
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com
USB Audio Windows Driver
Installation and Operation Guide
How to Operate the C2500, con’t
Figure 87
FACTORY RESET
-COMPLETE-
Figure 86
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