User`s guide

User's Guide Fireface 400 © RME

Analog Inputs

1 Mic, 2 Mic

Gain setting for the microphone preamps of input 1 and 2. The current gain is displayed in dB to

the left of the fader. Phantom power (48V) can be selected for each microphone input sepa-

rately. The option Link simplifies the setup in case both channels shall have the same set-

ting/values.

In the lower range the fader jumps from 10 dB to 0 dB. This useful additional setting allows to

operate even line signals with the microphone input (up to +10 dBu).

3 Line, 4 Line

Gain setting for the line/instrument inputs 3 and 4. The current gain is displayed in dB to the left

of the fader. Activate the option Inst to use inputs 3 and 4 with instruments. The input imped-

ance is raised to 470 kOhm, the input sensitivity increases by 10 dB. Pad decrease the input

sensitivity by 12 dB.

5-8 Line

Defines the reference level for the rear analog inputs 5-8.

Analog Outputs

1-6 Line

Defines the reference level for the rear analog outputs 1-6.

7-8 Phones

Defines the reference level for the rear analog outputs 7/8.

Digital Settings

SPDIF In

Defines the input for the SPDIF signal. 'Coaxial' relates to the RCA socket, 'Optical' to the opti-

cal TOSLINK input. The current sample rate of the SPDIF input signal is also displayed.

SPDIF Out

The SPDIF output signal is constantly available at the phono plug. After selecting 'Optical' it is

also routed to the optical TOSLINK output. For further details about the settings ‘Professional’,

‘Emphasis’ and ‘Non-Audio’, please refer to chapter 23.2.

Clock Mode

The unit can be configured to use its internal clock source (Master), or the clock source pre-

defined via Pref. Sync Ref (AutoSync).

Preferred Sync Ref / Input Status

Used to pre-select the desired clock source. If the selected source isn't available, the system

will change to the next available one. The current clock source and sample rate is displayed in

the AutoSync Ref display. The automatic clock selection checks and changes between the

clock sources Word, ADAT and SPDIF.

AutoSync Ref

Displays the current clock source and sample rate of the clock source.