27
How to Operate the MHA150, con’t
performance. For the best performance, the volume
control on the MHA150 should be set to 70%. The
Volume Control on the Main Preamplifier or Audio/
Video Controller should be used to adjust the listening
volume level.
Digital Inputs
When a Digital Input (Optical, Coaxial, MCT or USB
Connection) on the MHA150 is selected, the Front
Panel Display will indicate the Sampling Frequency
when a signal is present “48kHz”. Refer to figure 102.
During the time there is no Digital Signal present the
display will indicate “SILENT”. Refer to figure 103.
USB Input Operation and Driver Installation
The MHA150 USB Input provides the capability to
playback music from a computer, when the computer
is connected to the rear panel USB connector.
Note: The USB Input is for direct connection to a
computer only. To playback music from an USB
Drive, connect the USB Drive to another USB
Port on the computer and select the USB Drive
with the Media Playback Program.
The MHA150 USB Input is compatible with PC
Computers using Microsoft®, Windows 7 (SP1),
Windows 8.1 and Windows 10. It is also compatible
with Apple® Macintosh® Computers using OS-10.6.8
or later.
When using a PC Computer with Windows, a spe-
Figure 102
OPTICAL 30%
48kHz
Figure 103
COAXIAL 30%
SILENT
cial McIntosh USB Audio Software Driver needs to be
installed on the PC Computer. The driver needs to be
installed before connecting the MHA150 USB Input to
the USB Port on the computer.
Note: If an Apple Macintosh computer is used with the
MHA150, no additional driver is required.
The McIntosh USB Audio Windows Driver is
available for download from the McIntosh Web Site:
http://www.mcintoshlabs.com/us/Support/Pages/
Manuals.aspx
Under “PRODUCT CATEGORY” select “Inte-
grated Amplifiers” then under “MODEL NUMBER”
select “MHA150”. Click on “SEARCH” then select
“McIntosh-HD USB Audio Windows Drive D v2.0”
and download the PC Windows Driver. Follow the
instructions below to install the McIntosh MHA150
Driver:
Purpose:
To Install the McIntosh
USB Audio Windows Driver for use with
McIntosh Products with an USB-Digital
Audio Input.
Requirements:
1. A PC Computer with a
functioning
USB Port.
2. Windows 7 (SP1 or greater),
Windows 8 (8.1) or Windows 10
Operating System.
3. An USB Cable with Type A to
Type B Connectors.
Installing the Software
It is important to first install the downloaded software
on your computer before connecting the McIntosh
Product to the computer. The USB Driver is included
in the downloaded software package.
Note: Before installing this software, please check to see
if the McIntosh Product(s) with the USB-Digital
Audio Input has the latest firmware version, if not
update the firmware first.
1. Unzip the downloaded McIntosh Windows USB
Driver Software Package.
2. Run
“McIntoshHDSwPkg_20150814_v1p9p110p2.
zip”
. Refer to figures 104 thru 111.
3. When the Windows Security window appears
check the
Always trust software from “Savitech
Corp.”
box and then the Install button. When the
software has been installed, it is necessary to re-
boot the computer. Refer to figure 109.
Figure 106
Figure 107
Figure 105
Figure 104
Figure 108
Figure 109
Содержание MHA150
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