4
1. For additional connection information, refer to the
owner’s manual(s) for any component(s) connected
to the D150 Digital Preamplifier.
2. The Main AC Power going to the D150 and any
other McIntosh Component(s) should not be applied
until all the system components are connected
together. Failure to do so could result in malfunc-
tioning of some or all of the system’s normal opera-
tions. When the D150 and other McIntosh Com-
ponents are in their Standby Power Off Mode, the
Microprocessor’s Circuitry inside each component
is active and communication is occurring between
them.
3. The Fixed Balanced/Unbalanced Outputs and the
variable Balanced/Unbalanced Outputs can be used
simultaneously.
4. The D150 internal Digital to Analog Converter Cir-
cuitry is designed to decode 2-channel PCM (Pulse
Code Modulation) and DSD (Direct Stream Digital)
Digital Signals present at the Coaxial, Optical and
USB Digital Inputs. Other Digital Audio Signal
Format Types will cause the Audio Outputs of the
D150 to be muted.
5. The IR Input, with 1/8 inch mini phone jack, is
configured for non-McIntosh IR sensors such as a
Xantech Model HL85BK Kit.
6. When discarding the unit, comply with
local rules or regulations. Batteries should
never be thrown away or incinerated but
disposed of in accordance with the local
regulations concerning battery disposal.
7. For additional information on the D150 and other
McIntosh Products please visit the McIntosh Web
Site at www.mcintoshlabs.com.
General Information and Connector Information
Connector and Cable Information
XLR Connectors
Below is the Pin configuration for the XLR Balanced
Output Connectors on the D150. Refer to the diagram
for connections:
PIN 1: Shield/Ground
PIN 2: + Output
PIN 3: - Output
Power Control
The D150 Power Control In receives and the Power
Control Out sends Power On/
Off Signals (+12 volt/0 volt)
when connected to other McIn-
tosh Components. An additional
connection is for controlling the
illumination of the Power Output
Meters on McIntosh Power Amplifiers. A 1/8 inch
stereo mini phone plug is used for connection to the
Power Control
Data Input and IR IN Port Connectors
The D150 Data In Port receives
Remote Control Signals from
McIntosh Preamplifiers and
A/V Control Centers. A 1/8
inch stereo mini phone plug is
used for connection.
The IR IN Port also uses a 1/8
inch stereo mini phone plug and al-
lows the connection of other brand
IR Receivers to the D150.
Data
Signal
N/C
Data
Ground
PIN 1
PIN 2
PIN 3
General Information
Power
Control
Meter
Illumination
Control Ground
IR Data
Control
Ground
N/C
