NAD Masters Series M2 Manual Do Proprietário

1 BALANCED:  Connect XLR audio source to these connectors.  Ensure 

that proper pin configurations are followed – Pin 1: Ground, Pin 2: 
Positive (signal live) and Pin 3: Negative (signal return).

2 SINGLE-ENDED: Use a twin RCA-to-RCA lead to connect to these 

sockets the left and right analog output of a CD player, preamplifier or 
processor.

3  DIGITAL AUDIO (COAX 1-2): Connect to the corresponding coaxial S/

PDIF-format digital output of sources such as SACD/CD players, HDTV or 
satellite tuners and other components.  

DIGITAL AUDIO OUT (COAXIAL OUT): Connect COAXIAL OUT to the 
corresponding S/PDIF digital input of compatible devices such as CD 
recorders, receivers, computer soundcard or other digital processors.

4  DIGITAL AUDIO (OPTICAL 1-2): Connect to the corresponding optical 

S/PDIF-format digital output of sources such as SACD/CD players, HDTV 
or satellite tuners and other components.  

IMPORTANT NOTICE
 

LOOP IN): Connect OPTICAL LOOP OUT to the corresponding S/PDIF 
digital input of compatible devices such as CD recorders, receivers, 
computer soundcard or other digital processors. This OPTICAL LOOP 
OUT terminal is the same digital output that can be fed to a Mac or 
processor where the signal can be subjected to a wide library of third 
party crossover filters, equalization or room correction programs.  

The processed signal from the Mac or processor is then sent out 
through their corresponding Optical Out port into M2’s OPTICAL LOOP 
IN thereby completing the signal loop path. 

Refer also to the item above about “LOOP (DIGITAL PROCESSOR LOOP)” 
under IDENTIFICATION OF CONTROLS – FRONT PANEL.

IN: Digital audio stream from professional audio sources like 

SACD/CD Players or processors 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.

7  DIGITAL SOFT CLIPPING™: Enables NAD’s proprietary Soft Clipping 

circuitry on all channels.  At ON position, Soft Clipping gently limits the 
output of the M2 to minimize audible distortion should the amplifier be 
over-driven. Soft Clipping may simply be left ON at all times to reduce 
the likelihood of audible distortion from excessive volume settings. 
However, for critical listening and to preserve optimum dynamics, you 
may wish to defeat it by setting this switch to “OFF” position.

SWITCH: When at AUTO position, the front panel 

STANDBY button is disabled and M2 remote control’s [ON/OFF] button 
non-functional. At this condition, the M2 can only be switched ON from 
standby mode or back to standby mode when +12V DC is applied or 
cut off at the +12V TRIGGER IN jack. Slide the OFF/AUTO switch to OFF 
setting for the M2 to be normally switched ON (or back to standby 
mode) using the front panel STANDBY button or M2 remote control’s 
[ON/OFF] button.

NOTE
 

ATTENTION!