Control Elements - LD Systems LD LAX12D USB Manual De Usuario

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MONO CHANNELS (MIC/LINE)

The mono channels offer balanced XLR connectors for low-impedance micro-

phones and other low-level equipment. In addition, there are 6.3 mm TRS jack

input connectors for microphones and line level equipment (e.g., synthesizers,

drum computers, effects processors, etc.). Important: The MIC and LINE inputs

cannot be used simultaneously on the same channel. +48V PHANTOM POWER

The XLR inputs on the mono channels provide +48V phantom power for con-

denser microphones. Important: Never connect a microphone without phantom

power to the XLR input when phantom power is on.

INPUT GAIN ADJUSTMENT

The input gain control has two different scales: one for microphones and one

for line level devices. The outer ring (0 ~ 44 dB) refers to microphones, the

inner one (+15 ~ -30 dB) to line level devices. Always adjust the gain control

so that the peak LED above the channel fader lights up only occasionally. If the

LED is on constantly, this can lead to distortion.

LOW CUT FILTER

The LOW CUT button activates a low cut filter (75 Hz, slope 18 dB/octave) for

reducing low-frequency noise such as mains hum or handling noises from

vocal microphones.

STEREO CHANNELS

The stereo channels are configured as stereo pairs with 6.3 mm TRS jack

input connectors. Mono signal sources should be connected to the left jack

input connector.

+4dBu/-10dBV SELECTOR

The line inputs of the stereo channels have a button for selecting the input

sensitivity (+4 dBu for professional audio equipment, -10 dBV for general hi-fi

devices, etc.). If you are uncertain which setting to use for the respectively

connected device, first try +4 dBu. If the level is too low, switch to -10 dBv.

AUX SENDS

These 6.3 mm TRS sockets can be used to split the signal and send it additio-

nally to external effects processors or the like. In addition, these outputs can

be used as submix outputs.

PHONE

Headphones for monitoring the output signal (MAIN MIX) can be connected to

this TRS socket.