Bedienungsanleitung NAD M33 (Seite 9 von 26) (Englisch)

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ENGLISH

6 BRIDGE MODE

The M33 amplier can be congured to be MONO (Bridge Mode),

more than doubling its output power. This way, the M33 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 M33 will

produce approximately 640W 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 the 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.

• Connect the source to the Left input sockets only. Do not connect

anything to the Right Input socket when Bridge Mode is selected.

7 RS 232

• NAD is an integration partner with several smart control and

automation systems like Control4, Crestron, LUTRON among others.

Check out NAD website for a list of NAD’s integration partners. See

your NAD audio specialist for more information.

• Connect this interface using RS-232 serial cable (not supplied) to

any Windows compatible PC to allow remote control of M33 via

compatible external controllers.

• Refer to NAD website for information about RS232 Protocol

documents and PC interface program.

8 IR IN

• This input is connected to the output of an IR (infrared) repeater

(Xantech or similar) or IR output of another compatible device to

allow control of the M33 from a remote location.

9 +12V TRIGGER IN

• With this input triggered by a 12V DC supply, the M33 can be

switched ON remotely from standby mode by compatible devices

such as ampliers, preampliers, receivers, etc. If the 12V DC supply

is cut o, the M33 will return to standby mode.

• Connect this +12V Trigger input to the remote device’s

corresponding +12V DC output jack using a mono cable with

3.5mm male plug. The controlling device must be equipped with a

+12V trigger output to use this feature.

10 SERVICE

• These USB port and tact switch are for servicing purposes only. Not

for consumer use.

11 OPTICAL 1-2/COAXIAL 1-2

• Connect to corresponding optical and coaxial digital output of

sources such as CD or BD/DVD players, digital cable box, digital

tuners and other applicable components.

• The sources will appear as “Optical 1”, “Optical 2”, “Coaxial 1” and

“Coaxial 2” in the navigation drawer of the BluOS App.

12 AES/EBU IN

• Digital audio stream from professional audio sources can be

connected to this XLR connector. For high-end sources with higher

sampling rates like 176kHz and 192kHz, it is highly recommended

that such sources be interfaced with the AES/EBU IN connector.

The AES/EBU IN is well suited to handle such sources with high

sampling rate.

• The source will appear as “AES/EBU” in the navigation drawer of the

BluOS App.

13 BALANCED IN

• Connect XLR audio source to these connectors. Ensure that proper

pin congurations are followed – Pin 1: Ground, Pin 2: Positive

(signal live) and Pin 3: Negative (signal return).

• The source will appear as “Balanced In” in the navigation drawer of

the BluOS App.

14 PHONO

• Input for either MM or MC phono cartridge. Connect the twin RCA

leads from your turntable to this input.

• If your turntable includes a ground/earth lead, it can be connected

to the Ground Terminal (refer to item 20 below).

• The source will appear as “Phono” in the navigation drawer of the

BluOS App.

15 LINE IN

• Input for line level sources such as CD player, tuner or any

compatible devices. Use dual RCA-to-RCA cable to connect the

source device’s left and right “Audio Output” to these line input

ports.

• The source will appear as “Line In” in the navigation drawer of the

BluOS App.

16 PRE OUT

• Use dual RCA-to-RCA cable to connect PRE-OUT to the

corresponding analog audio input of compatible devices such

as ampliers, receivers or other applicable devices. This makes it

possible to use the M33 as a pre-amplier to such devices.

17 SPEAKERS

• The M33 has two sets of SPEAKER connections which are identical

in function (parallel connection).

• Connect M33’s Right speaker terminals marked “R +” and “R-” to

the corresponding “+” and “-“ terminals of your designated right

speaker. Repeat the same for M33’s Left speaker terminals and

corresponding left speaker.

• Double check the speaker connections before powering up the

M33.

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.

IDENTIFICATION OF CONTROLS

REAR PANEL

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