NAD CI940 Owner'S Manual Download Page 7

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1 ZONE 2 (INPUT/OUTPUT)

These INPUT/OUTPUT terminals are dedicated only for ZONE 2
SPEAKERS and corresponding STEREO and BRIDGE mode settings.

Always turn OFF the CI 940 and other components in the system
before connecting or disconnecting anything to the INPUT/OUTPUT
terminals.

Connect the output from a pre-amplifier or processor, such as a
surround-sound decoder, to the INPUT terminals. Use a twin RCA-
to-RCA lead to connect the left and right “Audio Output” of the
preamplifier or processor to these INPUT terminals.

The OUTPUT terminal is a line level “loop through” output. The
same level of input signal at the INPUT terminals is available at the
OUTPUT terminals thereby allowing the same signal to be shared or
passed on to another amplifier.

2 ZONE 1 (INPUT/OUTPUT)

Same description as item 1 above (ZONE 2 – INPUT/OUTPUT)
except that these terminals are dedicated only for ZONE 1 SPEAKERS
and corresponding STEREO and BRIDGE mode settings.

3 ZONE 2 SPEAKERS

Connect the speaker cables to the supplied speaker connector with
reference to ZONE 2’s speaker terminal markings in the rear panel.

In STEREO mode, ensure that ZONE 2 “R+” is connected to the “+”
terminal of your right speaker and the ZONE 2 “R-” is connected to
the speaker’s “-” terminal. Connect the ZONE 2 terminals marked “L+”
and “L-” to the left speaker in the same way.

STEREO MODE

SPEAKER CONNECTION

ZONE 2 “R”

TERMINAL

ZONE 2 “L”

TERMINAL

R+

R-

L+

L-

Left speaker terminals

Right speaker terminals

In Bridge Mode, connect the single speaker to the terminals marked
ZONE 2 “R +” and ZONE 2 “L+” ensuring that “L+” is connected to
the speaker’s “+” terminal and “R+” connected to the speaker’s “-”
terminal.

BRIDGE MODE

SPEAKER CONNECTION

ZONE 2 “R”

TERMINAL

ZONE 2 “L”

TERMINAL

R+

R-

L+

L-

Speaker terminals

BRIDGE MODE

ZONE 2 can be configured to be MONO (Bridge mode), more than
doubling its output power. This way, ZONE 2 can be used as part of a
high power stereo or home-theatre system by connecting additional
power amplifiers. In this mode, the amplifier section will react as
though the speaker impedance has been halved.

In Bridged mode, ZONE 2 will produce approximately 70W into an
8 ohm loudspeaker. Low impedance speakers (under 8 ohms) are
not recommended when using Bridge mode as these may cause the
amplifier’s thermal cut-out to operate if played at high levels.

4 ZONE 2 SELECTOR SWITCH

This selector switch is dedicated only to Zone 2.

Depending upon the speaker setup connection, slide selector
switch to either STEREO or BRIDGE as applicable.

Refer to item 3 above (ZONE 2) for corresponding speaker
connections at STEREO or BRIDGE mode.

5 ZONE 1 SELECTOR SWITCH

Same description as item 4 above (ZONE 2 SELECTOR SWITCH)
except that this selector switch is dedicated only to ZONE 1.

6 ZONE 1 SPEAKERS

Same description as item 3 above (ZONE 2 SPEAKERS) except that
this is dedicated only to ZONE 1 speakers.

IDENTIFICATION OF CONTROLS

REAR PANEL

INPUT

OUTPUT

INPUT

OUTPUT

ATTENTION!

Please make sure that the CI 940 is powered OFF or unplugged before making any connections. It is also advisable to power-down or unplug all associated
components while making or breaking any signal or AC power connections.