RME OctaMic II handleiding

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User’s Guide OctaMic II © RME

17

10.2 Line Out

The 8 short circuit protected, low impedance and servo balanced line outputs are available as

(stereo) 1/4" TRS jacks. The electronic output stage is built in a servo balanced design which

handles monaural and stereo jacks correctly.

The pinout follows international standards. Tip + or hot, ring – or cold.

To maintain an optimum level for devices connected to the analog outputs, the OctaMic includes

a switch which allows to change the reference level of all 8 outputs simultaneously.

The OctaMic II can generate a maximum level of +21 dBu without distortion. The CLIP LED lights

up 2 dB before the AD-converters maximum input level is reached (-2 dBFS). In relation to the

analog outputs, the LED lights up 2 dB before the selected reference level is reached, plus a

headroom of 9 dB. At HiGain (+19 dBu), the LED lights up at +17 dBu output level, in the +4 dBu

position (+13 dBu) at +11 dBu, and with -10 dBV (+4 dBu) at +2 dBu.

Setting

Reference

Clip LED

True Clip

ADC Level

Hi Gain

+19 dBu

+17 dBu

+21 dBu

-2 dBFS

+4 dBu

+13 dBu

+11 dBu

+15 dBu

-2 dBFS

-10 dBV

+2 dBV

0 dBV

+4 dBV

-2 dBFS

The chosen reference level has no meaning for the digital outputs. The AD-conversion is designed

for a level of –2 dBFS as soon as the Clip LED lights up.

Selecting +4 dBu the output signal is attenuated by 6 dB compared to Hi-Gain, so for the same

output level the amplification has to be increased via GAIN. With this trick the OctaMic reaches

the maximum signal to noise ratio on +4 dBu based inputs, because microphone preamps have

better EIN values at higher amplification. In case of an extreme recording situation, where the

gain of the OctaMic is no longer sufficient, selecting Hi-Gain will again provide the highest ampli-

fication possible.

The same is true and even more efficient at –10 dBV. In this case the output level is reduced by

15 dB – the same happens to the base noise of the unit!

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Bekijk gratis de handleiding van RME OctaMic II, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.

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