RME Audio Fireface 802, User Manual

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User's Guide Fireface 802 © RME 41
TS
The unbalanced TS Line inputs, which can be used alternatively, add even greater flexibility to
the Fireface 802. With 800 kOhm input impedance (Hi-Z), TS jack and adjustable input gain
over a range of 54 dB the front-side inputs can be used perfectly with keyboards, sampler, CD
player, guitars and much more. These inputs handle levels from –33 dBu up to +21 dBu, turning
them into full level Line inputs. Thus the unit can also be used as Line gain amplifier.
The TS jacks are free of phantom power.
20. Analog Outputs
20.1 Line
The short circuit protected, low impedance line outputs of channels 3 to 8 are available as 1/4"
TRS jacks on the back of the unit. The electronic output stage is built in a servo balanced de-
sign which handles unbalanced (mono jacks) and balanced (stereo jacks) correctly.
To maintain an optimum level for devices connected to the analog outputs, the Fireface 802
internally uses hi-quality electronic switches, which allow for a perfect adaptation of all outputs
to the three most often used studio levels.
As with the analog inputs, the analog output levels are defined to maintain a problem-free op-
eration with most other devices. The headroom of the Fireface 802 lies between 9 and 15 dB,
according to the chosen reference level:
Reference 0 dBFS @ Headroom
Hi Gain +19 dBu 15 dB
+4 dBu +13 dBu 9 dB
-10 dBV +2 dBV 12 dB
The above levels are also found in all other RME devices. Therefore they are fully compatible to
each other.
20.2 Headphones / Line Out
Channels 9 to 12 of the Fireface are available on the front as 1/4" TRS jacks. These channels
use the same converters as the other Line outputs, therefore offer the same technical data (118
dBA SNR).
Instead of using internal electronic switches, their output level is changed step-less with the
VOL pot. These outputs are special low impedance types, ready to be used with headphones.
But they can also be used as high-quality (yet unbalanced) Line outputs.
Setting the output level, i.e. the monitoring volume, is done – besides the VOL pot - via TotalMix
(Hardware Output, PH 9/10 and PH 11/12).