NAD C 268 User Manual

IDENTIFICATION OF CONTROLS
REAR PANEL
13 BRIDGE MODE
The C 268 amplier can be congured to be MONO (Bridge Mode),
more than doubling its output power. This way, the C 268 can be used
as part of a high power stereo or home-theatre system, by connecting
additional power ampliers.
• In BRIDGED MODE (switch at ON (MONO) setting), the C 268 will
produce approximately 160W into an 8 ohm loudspeaker. In this mode,
the amplier sections will react as though the speaker impedance
has been halved. Low impedance speakers (under 8 ohms) are not
recommended when using Bridge Mode as these may cause the
amplier’s thermal cut-out to operate if played at high levels.
• Set BRIDGE MODE switch to the “ON (MONO)” position and connect
the speaker to the terminals marked “L +” and “R-” ensuring that the
“L+” is connected to the “+” terminal of your speaker and the “R-” is
connected to the speaker’s “ - ” terminal.
• Set BRIDGE MODE switch to OFF (Stereo) for normal operation.
IMPORTANT NOTE
If C 368 is the signal source, connect only C 368 Right channel PRE OUT
to C 268 LEFT input (both C 368 and C 268 in BRIDGE mode). Never use
C368 Left channel PRE OUT to drive C 268 LEFT input.
14 SPEAKERS
• Connect C 268’s Right speaker terminals marked “R +” and “R-” to
the corresponding “+” and “-“ terminals of your designated right
speaker. Repeat the same for C 268’s Left speaker terminals and
corresponding left speaker.
• Double check the speaker connections before powering up the C 268.
IMPORTANT NOTES
• The blue terminals must never be connected to ground (earth).
• Never connect the blue terminals together or to any common ground
device.
• Do not connect the output of this amplier to any headphone adapter,
speaker switch or any device that uses common ground for left and right
channels.
NOTES
• Use 16 gauge (American Wire Gauge or AWG) or lower stranded wire.
Connections to the C 268 can be made with banana-type plugs.
• Bare wire or pins can also be used by loosening the terminal’s plastic nut,
making a clean, neat connection and re-tightening. To minimize the
danger of a short circuit, ensure that only 1/2-inch of exposed wire or pin
is used to connect and no loose strands of speaker wire.
15 POWER
• Supplies the AC mains power to the C 268.
• When the POWER switch is set to ON position, the C 268 goes to
standby mode as shown by the amber status condition of the front
panel Power indicator.
• Press the front panel Standby button to switch ON the C 268 from
standby mode.
• If you do not intend to use the C 268 for long periods of time (such
as when on vacation), switch o the POWER switch.
• With POWER switched o, the front panel Standby button cannot
activate the C 268.
16 FUSE HOLDER
• Only qualied NAD service technicians can have access to this fuse
holder. Opening this fuse holder may cause damage thus voiding
the warranty of your C 268.
17 AC MAINS INPUT
• The C 268 comes supplied with two separate mains power cords.
Select the mains power cord appropriate for your region.
• Before connecting the plug to the mains power source, ensure that
it is rmly connected to the C 268’s AC Mains input socket.
• Always disconnect the mains power plug from the mains power source
before disconnecting the cable from the C 268’s AC Mains input socket.
8
ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ

NAD C 268 Specifications

General

Damping factor	100
Amplifier class	-
Frequency range	20 - 20000 Hz
Input sensitivity	750 mV
Audio output channels	- channels
Peak power per channel	300 W
Signal-to-Noise Ratio (SNR)	0.3 dB
Total Harmonic Distortion (THD)	0.03 %
Dynamic power per channel (2 Ohm)	250 W
Dynamic power per channel (4 Ohm)	200 W
Dynamic power per channel (8 Ohm)	120 W
Power consumption (standby)	0.5 W
Package weight	8700 g
Product color	Black
Connectivity technology	Wired
LED indicators	Yes

Weight and Dimensions

Depth	390 mm
Width	435 mm
Height	100 mm
Weight	7300 g