Analog Outputs - RME Audio ADI-8 DS User Manual

6.2 Analog Outputs

The 8 short circuit protected, low impedance and servo balanced line outputs are available as
(stereo) 1/4" TRS jacks and 25 pin D-sub jack. Both are internally connected, and - in contrary
to the inputs - can be used simultaneously. The electronic output stage is built in a servo bal-
anced design which handles monaural and stereo jacks correctly. When used unbalanced it
automatically corrects the gain by 6 dB.
The 25-pin D-sub connector follows the pinout known from devices manufactured by Tascam.
Refer to chapter 10 for a pinout listing. We do not recommend to make such a cable by your-
self, as it is extremely difficult to integrate 8 balanced lines into a small D-sub housing without
short circuits. Your dealer will be glad to provide you with a professional Tascam multicore, D-
sub to XLR, made in the length of your choice.
To maintain an optimum level for devices connected to the analog outputs the ADI-8 DS in-
cludes electronic switches of the newest technology, which introduce no additional noise or
distortion to the audio path. The key OUTPUT LEVEL allows to change the output level of all 8
channels simultaneous to the most often used -10 dBV and +4 dBu.
Each analog output has its own 'Signal Ok' LED, so a signal at the analog outputs is visually
indicated. The green LED begins to light at -40 dBFS in an analog fashion (brighter at higher
levels).
As with the analog inputs the analog output levels do not follow any single standard, but are
designed to maintain a problem-free operation with most other devices. The headroom of the
ADI-8 DS is defined according to the chosen reference level.
Reference
Hi Gain
+4 dBu
-10 dBV
At +4 dBu a headroom of 9 dB offers a problem-free operation with most devices, and meets
the latest EBU recommendations for Broadcast usage. At -10 dBV 12 to 15 dB headroom are
common practice, each mixing desk operating at -10 dBV is able to send and receive much
higher levels. Hi Gain results in maximum level for professional users who prefer to work bal-
anced and at highest levels.
8
0 dBFS @
+19 dBu
+13 dBu
+2 dBV
User's Guide ADI-8 DS © RME
Headroom
15 dB
9 dB
12 dB