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Basic Operation Mark Levinson
Rear Panel Overview (continued)
2. stereo input connectors
Provide left and right-channel analog audio input. Three
balanced (female XLR) connectors labeled 1-3 are available to
accept line-level balanced input signals from associated
components that offer balanced (male XLR) output connectors.
Four single-ended (RCA) connectors labeled 4-7 are available
to accept line-level single-ended input signals from other
associated components.
For best performance, use balanced connections whenever
possible. Refer to the illustration to the left and to the associated
component documentation to ensure that Nº 320S 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 Nº 320S
phono modules are installed.
• A balanced connection between the Nº 320S 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 labeled 1 is available to output
balanced signals to an associated power amplifier that offers
balanced (female XLR) input connectors. One single-ended
(RCA) connector labeled 2 is available to output single-ended
signals to other associated components, 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 Nº 320S 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 Connector