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1. ~ac mains connector
Provides power to the Nº326S through the supplied power
cord when the supplied power cord is connected to the ~ac
mains connector and the electrical outlet. One IEC-standard
AC mains receptacle labeled ~ac mains is available.
Note
Before operating the Nº326S, make sure the ~ac mains
connector label indicates the correct operating voltage (page
1-7) for the current location.
2. stereo input connectors
Provide left and right-channel analog audio input. For each
channel, a set of balanced (female XLR) connectors is available
to accept line-level balanced input signals from associated
components that offer balanced (male XLR) output connectors.
The connectors in each set are labeled 1-3. Two sets of four
single-ended (RCA) connectors are available to accept line-
level single-ended input signals from other associated compo-
nents. The connectors in each set are labeled 4-7.
For best performance, use balanced connections whenever
possible. Refer to the illustration to the left and to the associated
component documentation to ensure that Nº326S balanced
input connector pin assignments correspond to the associated
component balanced output connector pin assignments. If
not, wire the cable so that the appropriate input pin connects
to the appropriate output pin.
Note
• The single-ended (RCA) input connector labeled 7
becomes the phono input connector when the Nº326S
phono modules are installed.
•A balanced connection between the Nº326S and the
associated power amplifier will offer the highest possible
performance with the best protection against RF
Interference and other common mode noise.
3. stereo main output connectors
Provide left and right-channel analog audio output. One
balanced (male XLR) connector per channel labeled 1 is avail-
able to output balanced signals to an associated power ampli-
fier that offers balanced (female XLR) input connectors. One
single-ended (RCA) connector per channel labeled 2 is avail-
able to output single-ended signals to other associated compo-
nents, including power amplifiers that do not offer balanced
(female XLR) input
connectors.
For best performance, use balanced connections whenever
possible. Refer to the illustration in the top-left corner of this
page and to the associated power amplifier documentation to
ensure that Nº326S balanced output connector pin assignments
correspond to the associated power amplifier balanced input
connector pin assignments. If not, wire the cable so that the
appropriate input pin connects to the appropriate output pin.
Pin Assignments
• Pin 1: Signal Ground
• Pin 2: Signal + (Non-Inverting)
• Pin 3: Signal – (Inverting)
• Connector Ground Lug: Chassis Ground
Pin 1
Pin 3
Pin 2
Push
Balanced (female XLR)
Input Connector
Pin 2
Pin 3
Pin 1
Balanced (male XLR)
Main Output Connector2-7
Nº326S Preamplifier Basic Operation
4. stereo record output connectors
Provide left and right-channel analog audio output at fixed
levels. Two single-ended (RCA) connectors labeled 1 and 2 are
available to output single-ended signals to recording components
such as CD-Rs and tape decks.
The Rec.Out parameter can be used to assign the record output
connectors to the desired input(s). It is recommended to use
the Name parameter to associate inputs with the correct
recording components to prevent possible record feedback
loops.
Note
Nº326S volume controls, including master volume and
balance, do not affect record output levels.
5. & slave in communication ports
Provide “links” to compatible Mark Levinson components,
allowing the Nº326S and other linked components to share
controls such as display intensity, standby, playback, input
selection, and record. Two 8-pin modular RJ-45 jacks labeled
and slave in are available.
The communication port can be connected to a Mark
Levinson power amplifier that offers Link communication
ports. The slave in communication port can be connected to
a compatible Mark Levinson digital audio processor or digital
transport that offers Link communication ports.
Note
Refer to Linking (page 2-9) BEFORE linking the Nº326S to
other Mark Levinson components.2-8
Basic Operation Mark Levinson
6. phono ground connector
Provides an earth-reference ground connection for a phono
cartridge. One binding post labeled phono ground is available
for a phono grounding wire. Connecting the phono grounding
wire to the phono ground connector grounds the phono
cartridge to the Nº326S chassis, which sometimes reduces audible
hum and other noise that results from multiple grounding
paths. Otherwise, the ground connection between the Nº326S
and the associated phono cartridge is isolated.
Note
Listen to the associated phono cartridge both with and
without the phono ground connection. Then, select the
connection that results in the best performance.
7. trigger output connector
Provides 12 or 5V DC output to control connected components.
One 3.5mm mini-jack labeled trigger output is available for a
mono plug (Tip/Sleeve) connection. The Trig. parameter can
be used to configure the trigger output connector to provide
12 or 5V DC output.
8. ir input connector
Provides input of 5V infrared signals with no more than
100mA of current from standard infrared distribution equipment
such as IR repeaters. One 3.5mm mini-jack labeled ir input is
available for a mono plug (Tip/Sleeve) connection. The tip of
the mono-plug must have positive polarity as shown in the
illustration to the left.
9. RS-232 port
Provides serial control, performing flash memory software
upgrades and facilitating external control in AMX™ and
Crestron™ systems. One 6-pin modular RJ-11 port labeled
RS-232 is available.
10. serial number label
Indicates the Nº326S serial number, which is required for
product registration and warranty service. |
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