McIntosh MCD550 Owner's Manual

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Signal is received the Front Panel Display will indicate 
the sample rate of the signal. Refer 
to figure 50.
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Computer
The MCD550 USB Input provides 
the capability to playback music 
from a computer, when the com-
puter is connected to the rear panel 
USB Digital Audio Input Connec-
tor. The MCD550 USB Input is 
compatible with both PC Comput-
ers using Microsoft
®
 Windows
® 
(XP [SP 3], Vista [SP 1],  Windows 
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Apple
®
 Macintosh
®
 Computers us-
ing OS-10.6 with the latest update. 
When using a PC Computer 
with Windows or an Apple
®
 Ma-
cintosh
®
, a special McIntosh USB 
Audio Software Driver B needs 
to be installed on the Computer 
before connecting the MCD550 
USB Input to an USB Port on the 
computer.
this until the desired brightness setting is selected.
7. Press the DISC LAYER Push-button to store the 
new brightness setting. The LED above the MUTE 
Push-button will now extinguish.
Power Mode
The MCD550 incorporates an Auto Off Feature, 
which can automatically place the SACD/CD Player 
into the Power Saving Standby/Off Mode (default 
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there has been an absence of a Digital Audio Signal. 
This includes a Digital Audio Signal coming from 
Disc Playback, Optical/Coaxial Input Signal or an 
USB Input Signal. If it is desirable to disable the Auto 
Off Feature, perform the following steps:
1. Using the MCD550 Remote Control, press and 
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seconds, at which time the Front Panel Display 
indicates “Auto STBY Off”. Refer to figure 44.
2. The MCD550 will switch Off and the LED above 
the STAND/BY Push-button will illuminate Red 
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switch the MCD550 On.
3. To re-active the Auto Off Feature, press and hold 
in the      Power Push-button on the Remote Con-
trol for about 5-10 seconds, at which time the Front 
Panel Display indicates “Auto STBY On”. Refer to 
figure 45.
4. The MCD550 will switch Off and the LED above 
the STAND/BY Push-button will illuminate Green 
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switch the MCD550 On.
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verter may be used to decode a variety of Digital Au-
dio Signals. It will decode a two channel PCM Encod-
ed Digital Signal into a two channel Analog Signal. 
There are connections for Coaxial, Optical, and USB 
Digital Inputs. They may be connected simultaneously 
and the MCD550 has electronic switching for selection 
of the desired music source.
The default Digital Input Selection is DISC for 
playback of a disc. To select an external Digital Input 
press the INPUT Push-button on the Front Panel 
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MCD550 Remote Control repeatedly until the name of 
the desired Input appears on the Front Panel Informa-
tion Display. Refer to figures 46, 47, 48, 49 and 25.
When a Digital Audio Signal is not present on the 
selected External Digital Input, the Front Panel Dis-
play will flash the input name. Once a Digital Audio 
How to Operate the MCD550, con’t
Figure 25
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Figure 45
A u t o   S T B Y   O f f
Figure 44
C O A X
Figure 47
U S B
Figure 46
O P T
Figure 48
D I S C
Figure 49
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Figure 50