17
When the C52 is part of a Home Theater or Mul-
tichannel Audio System the Right and Left Front
Channels from an Audio/Video Processor or Surround
Decoder can “Passthru” the C52 and onto its associ-
ated Power Amplifier(s). The Setup Mode allows
selection of the specified C52 Input to be used for the
Right and Left Front Channels. In the example below,
the Right and Left Front Channels from the Audio/
Video Processsor will be connected to the BALanced
3 Input Connectors on the C52. Refer to pages 8 and 9
for additional connection information.
Note: The Phono and Digital Inputs are not assign-
able as a Passthru Input.
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 2 on page 13.
2. Rotate the INPUT Control until “SETUP: Passth-
ru, Off” appears on the Information Display.
Refer to figure 39.
3. Rotate the VOLUME (ADJUST) Control to select
“BAL 3” Input. Refer to figure 40.
4. Exit the SETUP Mode by several presses of the
INPUT Control.
The C52 may be remotely controlled from other equip-
ment connected to the Rear Panel RS232 Jack. The
speed at which the C52 communicates (8 bit, no parity
and 1 stop bit) with other equipment is adjustable
from 9,600 bits per second to 115,200 bits per second.
To change from the default speed of 115,200 bits per
second, perform the following steps:
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 2 on page 13.
2. Rotate the INPUT Control until “SETUP: RS232,
115200 Baud” appears on the Information Dis-
play. Refer to figure 41.
3. Rotate the VOLUME (ADJUST) Control to select
the desired Baud Rate Speed.
4. Exit the SETUP Mode by several presses of the
INPUT Control.
Setup, con’t
Comm Port Baud Rate
SETUP: Passthru
BAL 3
Figure 40
SETUP: Passthru
Off
Figure 39
Passthru
Figure 41
SETUP: RS232
115200 Baud
Remote Control Codes
The Remote Control included with the C52 utilizes the
NORMAL McIntosh Control Codes. The Second Set
of Control Codes the C52 will respond to is referred
to as the ALTERNATE Codes. The Alternate Codes
are used when the C52 is used in the same location as
another McIntosh Preamplifier and/or A/V Processor.
This will prevent the Remote Control from affect-
ing the operation of both units at the same time. To
activate the Remote Control ALTERNATE Codes
perform the following steps:
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 2 on page 13.
2. Rotate the INPUT Control until “SETUP: IR
Codes, Normal” appears on the Information
Display. Refer to figure 42.
3. Rotate the VOLUME (ADJUST) Control to the
Alternate Codes. Refer to figure 43.
4. It is now necessary to change the HR085 Remote
Control over to the Alternate Codes. Information
on the HR085 Remote Control is available for
download from the McIntosh Web Site:
http://www.mcintoshlabs.com/us/Products/pages/
ProductDetails.aspx?CatId=preamplifiers&Produ
ctId=C52
5. Exit the SETUP Mode by several presses of the
INPUT Control.
Figure 42
SETUP: IR Codes
Normal
Figure 43
SETUP: IR Codes
Alternate
