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Connectors
Mains Connector
Mains voltage to the SDAI 2175 is applied via an IEC320 type connector. The supplied cable with safety
ground should be used to connect the SDAI 2175 to a mains outlet.
Loudspeaker connectors
The SDAI 2175´s loudspeaker connectors accept banana plugs, spades or bare wire ends up to 5 mm in
diameter. Connect the wires from each loudspeaker to each channel's + and – terminals. Do not make
any other connections to the output terminals. The loudspeaker cable is inserted into the slot in the loud-
speaker terminal, and the terminal is tightened fi rmly.
When the SDAI 2175 is operating, there is 35V DC on its output terminals with reference to ground.
Input connectors
The SDAI 2175 has input connectors for both balanced (XLR) and unbalanced (RCA) signals. The input
impedance of the balanced input 7 is 10 kOhm for the unbalanced input 1-6 the input impedance is
100kOhm.
Balanced inputs
The balanced XLR inputs are wired in accordance with IEC268:
Pin 1: Chassis and ground.
Pin 2: Hot (+).
Pin 3: Cold (-).
Shell: Chassis and ground.
Unbalanced inputs
The unbalanced RCA inputs are wired in accordance with normal practice:
Shell: Chassis and ground.
Pin: Hot (+).
1 4
Connect the power input only to the AC source printed on the label. The warranty
will not cover any damage caused by connecting to the wrong type of AC mains.
Always disconnect the SDAI 2175 from the mains before changing any connections
to its inputs or outputs.
Always disconnect the SDAI 2175 from the mains before changing any connections
to its inputs or outputs.
Make sure that no conductive part of the speaker wiring is accessible. Do not con-
nect loudspeakers with uninsulated terminals.
Do not connect the output from the amplifi er to any other amplifi er's output or
any other voltage source. Do not attempt to operate the amplifi er in bridged mono
mode.
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