RME DSP System Multiface - Manual (Page 37)

User's Guide HDSP System Multiface II © RME
37
22.2 Line Outputs
The eight short circuit protected, low impedance line outputs are available as 1/4" TRS jacks on
the back of the unit. The electronic output stage is built in a servo balanced design which han-
dles unbalanced (mono jacks) and balanced (stereo jacks) correctly.
To maintain an optimum level for devices connected to the analog outputs, the Multiface II in-
ternally uses hi-quality electronic switches, which allow for a perfect adaptation of all rear out-
puts to the three most often used studio levels. The configuration is done with the front panel
switch ANALOG LEVEL OUTPUTS.
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 Multiface II 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
With +4 dBu selected, the according headroom meets the latest EBU recommendations for
Broadcast usage. At -10 dBV a headroom of 12 dB is common practice, each mixing desk op-
erating at -10 dBV is able to send and receive much higher levels. Lo Gain is best suited for
professional users who prefer to work balanced and at highest levels. Lo Gain provides 15 dB
headroom at +4 dBu nominal level.
22.3 Headphones
Channels 19/20 of the Multiface are available on the front via one 1/4" unbalanced TRS jack
(stereo output). This output uses a special hi-grade converter, therefore maintains a very high
signal to noise ratio (119 dBA SNR!).
The output level is changed step-less with the VOL pot. The output is a special low impedance
type, ready to be used with headphones. But it can also be used as high-quality (yet unbal-
anced) stereo Line output.
Like all other outputs, the level of channels 19/20 can also be controlled by TotalMix. The moni-
toring performed on 19/20 of any input or playback channels (submix, like factory presets 1 and
2) is also controlled from TotalMix.
In case the output should operate
as line output, an adapter TRS plug
to RCA phono plugs, or TRS plug
to TS plugs is required.
The pin assignment follows interna-
tional standards. The left channel is
connected to the tip, the right chan-
nel to the ring of the TRS jack/plug.