User Manual
User's Guide Fireface UC © RME
37
Microphone Inputs
Channel 1 and 2 of the Fireface UC have digitally controlled microphone preamps of the highest
quality. The digital control offers a gain setting in steps of 1 dB within a range of 10 dB to 65 dB.
The configuration is done either directly at the unit via the rotary encoder, or via the Settings
dialog's tab Gain. The current gain is displayed in dB beside the fader.
In the lower range the fader jumps from 10 dB to 0 dB. This useful additional setting provides
line signal compatibility at up to +10 dBu.
Phantom power (48V) can be selected for each microphone input separately.
Link 1+2 gangs faders 1 and 2. This simplifies the setup in case both channels shall have the
same setting/values.
Instrument / Line Inputs
The inputs 3 and 4 have a digitally controlled preamp. It allows for an additional gain between 0
and 18 dB, in steps of 0.5 dB. The configuration is done either directly at the unit via the rotary
encoder, or via the Settings dialog's tab Gain. The current gain is displayed in dB beside the
fader.
Activate the option Instrument to use inputs 3 and 4 with instruments. The input impedance is
raised to 470 kOhm, the input sensitivity increases by 10 dB. Pad decrease the input sensitivity
by 12 dB.
Link 3+4 gangs faders 3 and 4. This simplifies the setup in case both channels shall have the
same setting/values. More information is found in chapter 25.3.
Level
Line In
Defines the reference level of the rear analog inputs 5-8.
Line Out
Defines the reference level of the rear analog outputs 1-6.
Phones
Defines the reference level of the analog outputs 7/8.
Clock Mode
Sample Rate
Used to set the current sample rate. This is the same setting as in the Audio MIDI Setup, just
added here for your convenience.
At ongoing record/playback the selection is greyed out, so no change is possible.
Clock Source
The unit can be configured to use its own clock (Internal = Master), or one of the input signals
(Word, Optical, SPDIF coax., = Slave). If the selected source isn't available, the unit will change
to the next available one (AutoSync). If none is available then the internal clock is used. The
current clock source is displayed to the right.
Input Status
Indicates for each input (Word, optical, SPDIF coax.) whether there is a valid signal (Lock, No
Lock), or if there is a valid and synchronous signal (Sync). The second row shows the sample
frequency measured by the hardware. In Clock Mode the clock reference is shown (Current…).
See also chapter 35.1.