Audio Inputs Connections - Ecler NUO4 Mode D'emploi

3.1. Audio inputs connections

Input 1
Input 1
Input 1
Input 2
Input 2
Input 3
Input 3
Input 4
Input 4
Input 4
Input 5 (computer)
- Phono Inputs:
Phono Turntables must be fitted with a magnetic cartridge with nominal output level between -55dBV and -25dBV
(1,77 to 56mV). The PHONO inputs (42) of the NUO4 have a high headroom (margin before saturation) and it can
handle higher output cartridges than what is usual. These inputs are supplied with a nominal input sensitivity of
-40dBV (10mV). The NUO4 has two oversized ground terminals to connect the turntables ground wire.
- Line Inputs:
Given the important level differences between usual LINE and CD sources, the NUO4 provides specialized inputs
for each source. The sensitivity of the HIGH LINE (41) input is 0dBV (1V), while the LOW LINE (43) sensitivity is
-10dBV (316mV). CD Players, DAT, MP3, and DVD Audio should be connected to the HIGH LINE input. Tape
players, tuners and some production devices (samplers, sequencers) should be connected to the LOW LINE input.
- Microphone Inputs:
The MIC input (49) is ready for a nominal input level of -50dBV (3.16mV) and is equipped with a XLR3 connectors.
The MIC ATT switch on the rear panel (48) allows a 20dB attenuation on the input sensibility, so that it is changed
from –50 to –30dB (3.16 to 31.6 mV). The connection of balanced signals is as follows:
Hot or direct signal
Cold or inverted signal
Ground
Low impedance (200 to 600Ω) monophonic microphones must be used. In case of working with an unbalanced
connection Pin 1 and Pin 3 must be short-circuited. The NUO4 features a Phantom power supply for the
connection of condenser microphones. A set of internal jumpers allow you to inhibit the phantom power for the
microphone. The default setting of these jumpers on the NUO4 is "Phantom ON". See configuration diagram.
- Computer input
AUDIO IN: This input has a -10dB rated sensitivity, for a correct level matching with sound cards outputs, allowing
a gain adjustment between -∞ and 0dB.
PFL: It has a rated sensitivity of 0dB. This input is designed for prelistening with audio mixing software. It must be
connected to a second sound card's output.
6
H-LINE CD player
PHONO Turntable
L-LINE Computers, Recorders...
H-LINE CD player
PHONO Turntable
H-LINE CD player
PHONO Turntable
PHONO Turntable
H-LINE CD player
MIC Microphone
AUDIO IN Sound card
PFL Monitoring
> Pin 2
> Pin 3
> Pin 1